Moving src/webrtc into src/.
In order to eliminate the WebRTC Subtree mirror in Chromium, WebRTC is moving the content of the src/webrtc directory up to the src/ directory. NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true TBR=tommi@webrtc.org Bug: chromium:611808 Change-Id: Iac59c5b51b950f174119565bac87955a7994bc38 Reviewed-on: https://webrtc-review.googlesource.com/1560 Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org> Reviewed-by: Henrik Kjellander <kjellander@webrtc.org> Cr-Commit-Position: refs/heads/master@{#19845}
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Mirko Bonadei
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49
modules/audio_processing/ns/defines.h
Normal file
49
modules/audio_processing/ns/defines.h
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@ -0,0 +1,49 @@
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/*
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* Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
|
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef WEBRTC_MODULES_AUDIO_PROCESSING_NS_MAIN_SOURCE_DEFINES_H_
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#define WEBRTC_MODULES_AUDIO_PROCESSING_NS_MAIN_SOURCE_DEFINES_H_
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#define BLOCKL_MAX 160 // max processing block length: 160
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#define ANAL_BLOCKL_MAX 256 // max analysis block length: 256
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#define HALF_ANAL_BLOCKL 129 // half max analysis block length + 1
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#define NUM_HIGH_BANDS_MAX 2 // max number of high bands: 2
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#define QUANTILE (float)0.25
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#define SIMULT 3
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#define END_STARTUP_LONG 200
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#define END_STARTUP_SHORT 50
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#define FACTOR (float)40.0
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#define WIDTH (float)0.01
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// Length of fft work arrays.
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#define IP_LENGTH (ANAL_BLOCKL_MAX >> 1) // must be at least ceil(2 + sqrt(ANAL_BLOCKL_MAX/2))
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#define W_LENGTH (ANAL_BLOCKL_MAX >> 1)
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//PARAMETERS FOR NEW METHOD
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#define DD_PR_SNR (float)0.98 // DD update of prior SNR
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#define LRT_TAVG (float)0.50 // tavg parameter for LRT (previously 0.90)
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#define SPECT_FL_TAVG (float)0.30 // tavg parameter for spectral flatness measure
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#define SPECT_DIFF_TAVG (float)0.30 // tavg parameter for spectral difference measure
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#define PRIOR_UPDATE (float)0.10 // update parameter of prior model
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#define NOISE_UPDATE (float)0.90 // update parameter for noise
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#define SPEECH_UPDATE (float)0.99 // update parameter when likely speech
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#define WIDTH_PR_MAP (float)4.0 // width parameter in sigmoid map for prior model
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#define LRT_FEATURE_THR (float)0.5 // default threshold for LRT feature
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#define SF_FEATURE_THR (float)0.5 // default threshold for Spectral Flatness feature
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#define SD_FEATURE_THR (float)0.5 // default threshold for Spectral Difference feature
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#define PROB_RANGE (float)0.20 // probability threshold for noise state in
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// speech/noise likelihood
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#define HIST_PAR_EST 1000 // histogram size for estimation of parameters
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#define GAMMA_PAUSE (float)0.05 // update for conservative noise estimate
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//
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#define B_LIM (float)0.5 // threshold in final energy gain factor calculation
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#endif // WEBRTC_MODULES_AUDIO_PROCESSING_NS_MAIN_SOURCE_DEFINES_H_
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71
modules/audio_processing/ns/noise_suppression.c
Normal file
71
modules/audio_processing/ns/noise_suppression.c
Normal file
@ -0,0 +1,71 @@
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/*
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* Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "webrtc/modules/audio_processing/ns/noise_suppression.h"
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#include <stdlib.h>
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#include <string.h>
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#include "webrtc/common_audio/signal_processing/include/signal_processing_library.h"
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#include "webrtc/modules/audio_processing/ns/defines.h"
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#include "webrtc/modules/audio_processing/ns/ns_core.h"
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NsHandle* WebRtcNs_Create() {
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NoiseSuppressionC* self = malloc(sizeof(NoiseSuppressionC));
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self->initFlag = 0;
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return (NsHandle*)self;
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}
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void WebRtcNs_Free(NsHandle* NS_inst) {
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free(NS_inst);
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}
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int WebRtcNs_Init(NsHandle* NS_inst, uint32_t fs) {
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return WebRtcNs_InitCore((NoiseSuppressionC*)NS_inst, fs);
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}
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int WebRtcNs_set_policy(NsHandle* NS_inst, int mode) {
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return WebRtcNs_set_policy_core((NoiseSuppressionC*)NS_inst, mode);
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}
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void WebRtcNs_Analyze(NsHandle* NS_inst, const float* spframe) {
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WebRtcNs_AnalyzeCore((NoiseSuppressionC*)NS_inst, spframe);
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}
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void WebRtcNs_Process(NsHandle* NS_inst,
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const float* const* spframe,
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size_t num_bands,
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float* const* outframe) {
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WebRtcNs_ProcessCore((NoiseSuppressionC*)NS_inst, spframe, num_bands,
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outframe);
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}
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float WebRtcNs_prior_speech_probability(NsHandle* handle) {
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NoiseSuppressionC* self = (NoiseSuppressionC*)handle;
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if (handle == NULL) {
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return -1;
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}
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if (self->initFlag == 0) {
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return -1;
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}
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return self->priorSpeechProb;
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}
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const float* WebRtcNs_noise_estimate(const NsHandle* handle) {
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const NoiseSuppressionC* self = (const NoiseSuppressionC*)handle;
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if (handle == NULL || self->initFlag == 0) {
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return NULL;
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}
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return self->noise;
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}
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size_t WebRtcNs_num_freq() {
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return HALF_ANAL_BLOCKL;
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}
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135
modules/audio_processing/ns/noise_suppression.h
Normal file
135
modules/audio_processing/ns/noise_suppression.h
Normal file
@ -0,0 +1,135 @@
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/*
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* Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef WEBRTC_MODULES_AUDIO_PROCESSING_NS_NOISE_SUPPRESSION_H_
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#define WEBRTC_MODULES_AUDIO_PROCESSING_NS_NOISE_SUPPRESSION_H_
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#include <stddef.h>
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#include "webrtc/typedefs.h"
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typedef struct NsHandleT NsHandle;
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* This function creates an instance of the floating point Noise Suppression.
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*/
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NsHandle* WebRtcNs_Create();
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/*
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* This function frees the dynamic memory of a specified noise suppression
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* instance.
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*
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* Input:
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* - NS_inst : Pointer to NS instance that should be freed
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*/
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void WebRtcNs_Free(NsHandle* NS_inst);
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/*
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* This function initializes a NS instance and has to be called before any other
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* processing is made.
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*
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* Input:
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* - NS_inst : Instance that should be initialized
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* - fs : sampling frequency
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*
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* Output:
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* - NS_inst : Initialized instance
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*
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* Return value : 0 - Ok
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* -1 - Error
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*/
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int WebRtcNs_Init(NsHandle* NS_inst, uint32_t fs);
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/*
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* This changes the aggressiveness of the noise suppression method.
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*
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* Input:
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* - NS_inst : Noise suppression instance.
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* - mode : 0: Mild, 1: Medium , 2: Aggressive
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*
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* Output:
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* - NS_inst : Updated instance.
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*
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* Return value : 0 - Ok
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* -1 - Error
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*/
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int WebRtcNs_set_policy(NsHandle* NS_inst, int mode);
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/*
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* This functions estimates the background noise for the inserted speech frame.
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* The input and output signals should always be 10ms (80 or 160 samples).
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*
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* Input
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* - NS_inst : Noise suppression instance.
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* - spframe : Pointer to speech frame buffer for L band
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*
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* Output:
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* - NS_inst : Updated NS instance
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*/
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void WebRtcNs_Analyze(NsHandle* NS_inst, const float* spframe);
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/*
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* This functions does Noise Suppression for the inserted speech frame. The
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* input and output signals should always be 10ms (80 or 160 samples).
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*
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* Input
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* - NS_inst : Noise suppression instance.
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* - spframe : Pointer to speech frame buffer for each band
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* - num_bands : Number of bands
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*
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* Output:
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* - NS_inst : Updated NS instance
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* - outframe : Pointer to output frame for each band
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*/
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void WebRtcNs_Process(NsHandle* NS_inst,
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const float* const* spframe,
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size_t num_bands,
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float* const* outframe);
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/* Returns the internally used prior speech probability of the current frame.
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* There is a frequency bin based one as well, with which this should not be
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* confused.
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*
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* Input
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* - handle : Noise suppression instance.
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*
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* Return value : Prior speech probability in interval [0.0, 1.0].
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* -1 - NULL pointer or uninitialized instance.
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*/
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float WebRtcNs_prior_speech_probability(NsHandle* handle);
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/* Returns a pointer to the noise estimate per frequency bin. The number of
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* frequency bins can be provided using WebRtcNs_num_freq().
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*
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* Input
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* - handle : Noise suppression instance.
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*
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* Return value : Pointer to the noise estimate per frequency bin.
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* Returns NULL if the input is a NULL pointer or an
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* uninitialized instance.
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*/
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const float* WebRtcNs_noise_estimate(const NsHandle* handle);
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/* Returns the number of frequency bins, which is the length of the noise
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* estimate for example.
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*
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* Return value : Number of frequency bins.
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*/
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size_t WebRtcNs_num_freq();
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#ifdef __cplusplus
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}
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#endif
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#endif // WEBRTC_MODULES_AUDIO_PROCESSING_NS_NOISE_SUPPRESSION_H_
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61
modules/audio_processing/ns/noise_suppression_x.c
Normal file
61
modules/audio_processing/ns/noise_suppression_x.c
Normal file
@ -0,0 +1,61 @@
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/*
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* Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
|
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
|
||||
* in the file PATENTS. All contributing project authors may
|
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "webrtc/modules/audio_processing/ns/noise_suppression_x.h"
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#include <stdlib.h>
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#include "webrtc/common_audio/signal_processing/include/real_fft.h"
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#include "webrtc/modules/audio_processing/ns/nsx_core.h"
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#include "webrtc/modules/audio_processing/ns/nsx_defines.h"
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NsxHandle* WebRtcNsx_Create() {
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NoiseSuppressionFixedC* self = malloc(sizeof(NoiseSuppressionFixedC));
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WebRtcSpl_Init();
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self->real_fft = NULL;
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self->initFlag = 0;
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return (NsxHandle*)self;
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}
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void WebRtcNsx_Free(NsxHandle* nsxInst) {
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WebRtcSpl_FreeRealFFT(((NoiseSuppressionFixedC*)nsxInst)->real_fft);
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free(nsxInst);
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}
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int WebRtcNsx_Init(NsxHandle* nsxInst, uint32_t fs) {
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return WebRtcNsx_InitCore((NoiseSuppressionFixedC*)nsxInst, fs);
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}
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int WebRtcNsx_set_policy(NsxHandle* nsxInst, int mode) {
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return WebRtcNsx_set_policy_core((NoiseSuppressionFixedC*)nsxInst, mode);
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}
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void WebRtcNsx_Process(NsxHandle* nsxInst,
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const short* const* speechFrame,
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int num_bands,
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short* const* outFrame) {
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WebRtcNsx_ProcessCore((NoiseSuppressionFixedC*)nsxInst, speechFrame,
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num_bands, outFrame);
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}
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const uint32_t* WebRtcNsx_noise_estimate(const NsxHandle* nsxInst,
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int* q_noise) {
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*q_noise = 11;
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const NoiseSuppressionFixedC* self = (const NoiseSuppressionFixedC*)nsxInst;
|
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if (nsxInst == NULL || self->initFlag == 0) {
|
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return NULL;
|
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}
|
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*q_noise += self->prevQNoise;
|
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return self->prevNoiseU32;
|
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}
|
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|
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size_t WebRtcNsx_num_freq() {
|
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return HALF_ANAL_BLOCKL;
|
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}
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113
modules/audio_processing/ns/noise_suppression_x.h
Normal file
113
modules/audio_processing/ns/noise_suppression_x.h
Normal file
@ -0,0 +1,113 @@
|
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/*
|
||||
* Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
|
||||
*
|
||||
* Use of this source code is governed by a BSD-style license
|
||||
* that can be found in the LICENSE file in the root of the source
|
||||
* tree. An additional intellectual property rights grant can be found
|
||||
* in the file PATENTS. All contributing project authors may
|
||||
* be found in the AUTHORS file in the root of the source tree.
|
||||
*/
|
||||
|
||||
#ifndef WEBRTC_MODULES_AUDIO_PROCESSING_NS_NOISE_SUPPRESSION_X_H_
|
||||
#define WEBRTC_MODULES_AUDIO_PROCESSING_NS_NOISE_SUPPRESSION_X_H_
|
||||
|
||||
#include <stddef.h>
|
||||
|
||||
#include "webrtc/typedefs.h"
|
||||
|
||||
typedef struct NsxHandleT NsxHandle;
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
/*
|
||||
* This function creates an instance of the fixed point Noise Suppression.
|
||||
*/
|
||||
NsxHandle* WebRtcNsx_Create();
|
||||
|
||||
/*
|
||||
* This function frees the dynamic memory of a specified Noise Suppression
|
||||
* instance.
|
||||
*
|
||||
* Input:
|
||||
* - nsxInst : Pointer to NS instance that should be freed
|
||||
*/
|
||||
void WebRtcNsx_Free(NsxHandle* nsxInst);
|
||||
|
||||
/*
|
||||
* This function initializes a NS instance
|
||||
*
|
||||
* Input:
|
||||
* - nsxInst : Instance that should be initialized
|
||||
* - fs : sampling frequency
|
||||
*
|
||||
* Output:
|
||||
* - nsxInst : Initialized instance
|
||||
*
|
||||
* Return value : 0 - Ok
|
||||
* -1 - Error
|
||||
*/
|
||||
int WebRtcNsx_Init(NsxHandle* nsxInst, uint32_t fs);
|
||||
|
||||
/*
|
||||
* This changes the aggressiveness of the noise suppression method.
|
||||
*
|
||||
* Input:
|
||||
* - nsxInst : Instance that should be initialized
|
||||
* - mode : 0: Mild, 1: Medium , 2: Aggressive
|
||||
*
|
||||
* Output:
|
||||
* - nsxInst : Initialized instance
|
||||
*
|
||||
* Return value : 0 - Ok
|
||||
* -1 - Error
|
||||
*/
|
||||
int WebRtcNsx_set_policy(NsxHandle* nsxInst, int mode);
|
||||
|
||||
/*
|
||||
* This functions does noise suppression for the inserted speech frame. The
|
||||
* input and output signals should always be 10ms (80 or 160 samples).
|
||||
*
|
||||
* Input
|
||||
* - nsxInst : NSx instance. Needs to be initiated before call.
|
||||
* - speechFrame : Pointer to speech frame buffer for each band
|
||||
* - num_bands : Number of bands
|
||||
*
|
||||
* Output:
|
||||
* - nsxInst : Updated NSx instance
|
||||
* - outFrame : Pointer to output frame for each band
|
||||
*/
|
||||
void WebRtcNsx_Process(NsxHandle* nsxInst,
|
||||
const short* const* speechFrame,
|
||||
int num_bands,
|
||||
short* const* outFrame);
|
||||
|
||||
/* Returns a pointer to the noise estimate per frequency bin. The number of
|
||||
* frequency bins can be provided using WebRtcNsx_num_freq().
|
||||
*
|
||||
* Input
|
||||
* - nsxInst : NSx instance. Needs to be initiated before call.
|
||||
* - q_noise : Q value of the noise estimate, which is the number of
|
||||
* bits that it needs to be right-shifted to be
|
||||
* normalized.
|
||||
*
|
||||
* Return value : Pointer to the noise estimate per frequency bin.
|
||||
* Returns NULL if the input is a NULL pointer or an
|
||||
* uninitialized instance.
|
||||
*/
|
||||
const uint32_t* WebRtcNsx_noise_estimate(const NsxHandle* nsxInst,
|
||||
int* q_noise);
|
||||
|
||||
/* Returns the number of frequency bins, which is the length of the noise
|
||||
* estimate for example.
|
||||
*
|
||||
* Return value : Number of frequency bins.
|
||||
*/
|
||||
size_t WebRtcNsx_num_freq();
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif // WEBRTC_MODULES_AUDIO_PROCESSING_NS_NOISE_SUPPRESSION_X_H_
|
||||
1416
modules/audio_processing/ns/ns_core.c
Normal file
1416
modules/audio_processing/ns/ns_core.c
Normal file
File diff suppressed because it is too large
Load Diff
190
modules/audio_processing/ns/ns_core.h
Normal file
190
modules/audio_processing/ns/ns_core.h
Normal file
@ -0,0 +1,190 @@
|
||||
/*
|
||||
* Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
|
||||
*
|
||||
* Use of this source code is governed by a BSD-style license
|
||||
* that can be found in the LICENSE file in the root of the source
|
||||
* tree. An additional intellectual property rights grant can be found
|
||||
* in the file PATENTS. All contributing project authors may
|
||||
* be found in the AUTHORS file in the root of the source tree.
|
||||
*/
|
||||
|
||||
#ifndef WEBRTC_MODULES_AUDIO_PROCESSING_NS_NS_CORE_H_
|
||||
#define WEBRTC_MODULES_AUDIO_PROCESSING_NS_NS_CORE_H_
|
||||
|
||||
#include "webrtc/modules/audio_processing/ns/defines.h"
|
||||
|
||||
typedef struct NSParaExtract_ {
|
||||
// Bin size of histogram.
|
||||
float binSizeLrt;
|
||||
float binSizeSpecFlat;
|
||||
float binSizeSpecDiff;
|
||||
// Range of histogram over which LRT threshold is computed.
|
||||
float rangeAvgHistLrt;
|
||||
// Scale parameters: multiply dominant peaks of the histograms by scale factor
|
||||
// to obtain thresholds for prior model.
|
||||
float factor1ModelPars; // For LRT and spectral difference.
|
||||
float factor2ModelPars; // For spectral_flatness: used when noise is flatter
|
||||
// than speech.
|
||||
// Peak limit for spectral flatness (varies between 0 and 1).
|
||||
float thresPosSpecFlat;
|
||||
// Limit on spacing of two highest peaks in histogram: spacing determined by
|
||||
// bin size.
|
||||
float limitPeakSpacingSpecFlat;
|
||||
float limitPeakSpacingSpecDiff;
|
||||
// Limit on relevance of second peak.
|
||||
float limitPeakWeightsSpecFlat;
|
||||
float limitPeakWeightsSpecDiff;
|
||||
// Limit on fluctuation of LRT feature.
|
||||
float thresFluctLrt;
|
||||
// Limit on the max and min values for the feature thresholds.
|
||||
float maxLrt;
|
||||
float minLrt;
|
||||
float maxSpecFlat;
|
||||
float minSpecFlat;
|
||||
float maxSpecDiff;
|
||||
float minSpecDiff;
|
||||
// Criteria of weight of histogram peak to accept/reject feature.
|
||||
int thresWeightSpecFlat;
|
||||
int thresWeightSpecDiff;
|
||||
|
||||
} NSParaExtract;
|
||||
|
||||
typedef struct NoiseSuppressionC_ {
|
||||
uint32_t fs;
|
||||
size_t blockLen;
|
||||
size_t windShift;
|
||||
size_t anaLen;
|
||||
size_t magnLen;
|
||||
int aggrMode;
|
||||
const float* window;
|
||||
float analyzeBuf[ANAL_BLOCKL_MAX];
|
||||
float dataBuf[ANAL_BLOCKL_MAX];
|
||||
float syntBuf[ANAL_BLOCKL_MAX];
|
||||
|
||||
int initFlag;
|
||||
// Parameters for quantile noise estimation.
|
||||
float density[SIMULT * HALF_ANAL_BLOCKL];
|
||||
float lquantile[SIMULT * HALF_ANAL_BLOCKL];
|
||||
float quantile[HALF_ANAL_BLOCKL];
|
||||
int counter[SIMULT];
|
||||
int updates;
|
||||
// Parameters for Wiener filter.
|
||||
float smooth[HALF_ANAL_BLOCKL];
|
||||
float overdrive;
|
||||
float denoiseBound;
|
||||
int gainmap;
|
||||
// FFT work arrays.
|
||||
size_t ip[IP_LENGTH];
|
||||
float wfft[W_LENGTH];
|
||||
|
||||
// Parameters for new method: some not needed, will reduce/cleanup later.
|
||||
int32_t blockInd; // Frame index counter.
|
||||
int modelUpdatePars[4]; // Parameters for updating or estimating.
|
||||
// Thresholds/weights for prior model.
|
||||
float priorModelPars[7]; // Parameters for prior model.
|
||||
float noise[HALF_ANAL_BLOCKL]; // Noise spectrum from current frame.
|
||||
float noisePrev[HALF_ANAL_BLOCKL]; // Noise spectrum from previous frame.
|
||||
// Magnitude spectrum of previous analyze frame.
|
||||
float magnPrevAnalyze[HALF_ANAL_BLOCKL];
|
||||
// Magnitude spectrum of previous process frame.
|
||||
float magnPrevProcess[HALF_ANAL_BLOCKL];
|
||||
float logLrtTimeAvg[HALF_ANAL_BLOCKL]; // Log LRT factor with time-smoothing.
|
||||
float priorSpeechProb; // Prior speech/noise probability.
|
||||
float featureData[7];
|
||||
// Conservative noise spectrum estimate.
|
||||
float magnAvgPause[HALF_ANAL_BLOCKL];
|
||||
float signalEnergy; // Energy of |magn|.
|
||||
float sumMagn;
|
||||
float whiteNoiseLevel; // Initial noise estimate.
|
||||
float initMagnEst[HALF_ANAL_BLOCKL]; // Initial magnitude spectrum estimate.
|
||||
float pinkNoiseNumerator; // Pink noise parameter: numerator.
|
||||
float pinkNoiseExp; // Pink noise parameter: power of frequencies.
|
||||
float parametricNoise[HALF_ANAL_BLOCKL];
|
||||
// Parameters for feature extraction.
|
||||
NSParaExtract featureExtractionParams;
|
||||
// Histograms for parameter estimation.
|
||||
int histLrt[HIST_PAR_EST];
|
||||
int histSpecFlat[HIST_PAR_EST];
|
||||
int histSpecDiff[HIST_PAR_EST];
|
||||
// Quantities for high band estimate.
|
||||
float speechProb[HALF_ANAL_BLOCKL]; // Final speech/noise prob: prior + LRT.
|
||||
// Buffering data for HB.
|
||||
float dataBufHB[NUM_HIGH_BANDS_MAX][ANAL_BLOCKL_MAX];
|
||||
|
||||
} NoiseSuppressionC;
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* WebRtcNs_InitCore(...)
|
||||
*
|
||||
* This function initializes a noise suppression instance
|
||||
*
|
||||
* Input:
|
||||
* - self : Instance that should be initialized
|
||||
* - fs : Sampling frequency
|
||||
*
|
||||
* Output:
|
||||
* - self : Initialized instance
|
||||
*
|
||||
* Return value : 0 - Ok
|
||||
* -1 - Error
|
||||
*/
|
||||
int WebRtcNs_InitCore(NoiseSuppressionC* self, uint32_t fs);
|
||||
|
||||
/****************************************************************************
|
||||
* WebRtcNs_set_policy_core(...)
|
||||
*
|
||||
* This changes the aggressiveness of the noise suppression method.
|
||||
*
|
||||
* Input:
|
||||
* - self : Instance that should be initialized
|
||||
* - mode : 0: Mild (6dB), 1: Medium (10dB), 2: Aggressive (15dB)
|
||||
*
|
||||
* Output:
|
||||
* - self : Initialized instance
|
||||
*
|
||||
* Return value : 0 - Ok
|
||||
* -1 - Error
|
||||
*/
|
||||
int WebRtcNs_set_policy_core(NoiseSuppressionC* self, int mode);
|
||||
|
||||
/****************************************************************************
|
||||
* WebRtcNs_AnalyzeCore
|
||||
*
|
||||
* Estimate the background noise.
|
||||
*
|
||||
* Input:
|
||||
* - self : Instance that should be initialized
|
||||
* - speechFrame : Input speech frame for lower band
|
||||
*
|
||||
* Output:
|
||||
* - self : Updated instance
|
||||
*/
|
||||
void WebRtcNs_AnalyzeCore(NoiseSuppressionC* self, const float* speechFrame);
|
||||
|
||||
/****************************************************************************
|
||||
* WebRtcNs_ProcessCore
|
||||
*
|
||||
* Do noise suppression.
|
||||
*
|
||||
* Input:
|
||||
* - self : Instance that should be initialized
|
||||
* - inFrame : Input speech frame for each band
|
||||
* - num_bands : Number of bands
|
||||
*
|
||||
* Output:
|
||||
* - self : Updated instance
|
||||
* - outFrame : Output speech frame for each band
|
||||
*/
|
||||
void WebRtcNs_ProcessCore(NoiseSuppressionC* self,
|
||||
const float* const* inFrame,
|
||||
size_t num_bands,
|
||||
float* const* outFrame);
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
#endif // WEBRTC_MODULES_AUDIO_PROCESSING_NS_NS_CORE_H_
|
||||
2107
modules/audio_processing/ns/nsx_core.c
Normal file
2107
modules/audio_processing/ns/nsx_core.c
Normal file
File diff suppressed because it is too large
Load Diff
263
modules/audio_processing/ns/nsx_core.h
Normal file
263
modules/audio_processing/ns/nsx_core.h
Normal file
@ -0,0 +1,263 @@
|
||||
/*
|
||||
* Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
|
||||
*
|
||||
* Use of this source code is governed by a BSD-style license
|
||||
* that can be found in the LICENSE file in the root of the source
|
||||
* tree. An additional intellectual property rights grant can be found
|
||||
* in the file PATENTS. All contributing project authors may
|
||||
* be found in the AUTHORS file in the root of the source tree.
|
||||
*/
|
||||
|
||||
#ifndef WEBRTC_MODULES_AUDIO_PROCESSING_NS_MAIN_SOURCE_NSX_CORE_H_
|
||||
#define WEBRTC_MODULES_AUDIO_PROCESSING_NS_MAIN_SOURCE_NSX_CORE_H_
|
||||
|
||||
#ifdef NS_FILEDEBUG
|
||||
#include <stdio.h>
|
||||
#endif
|
||||
|
||||
#include "webrtc/common_audio/signal_processing/include/signal_processing_library.h"
|
||||
#include "webrtc/modules/audio_processing/ns/nsx_defines.h"
|
||||
#include "webrtc/typedefs.h"
|
||||
|
||||
typedef struct NoiseSuppressionFixedC_ {
|
||||
uint32_t fs;
|
||||
|
||||
const int16_t* window;
|
||||
int16_t analysisBuffer[ANAL_BLOCKL_MAX];
|
||||
int16_t synthesisBuffer[ANAL_BLOCKL_MAX];
|
||||
uint16_t noiseSupFilter[HALF_ANAL_BLOCKL];
|
||||
uint16_t overdrive; /* Q8 */
|
||||
uint16_t denoiseBound; /* Q14 */
|
||||
const int16_t* factor2Table;
|
||||
int16_t noiseEstLogQuantile[SIMULT* HALF_ANAL_BLOCKL];
|
||||
int16_t noiseEstDensity[SIMULT* HALF_ANAL_BLOCKL];
|
||||
int16_t noiseEstCounter[SIMULT];
|
||||
int16_t noiseEstQuantile[HALF_ANAL_BLOCKL];
|
||||
|
||||
size_t anaLen;
|
||||
size_t anaLen2;
|
||||
size_t magnLen;
|
||||
int aggrMode;
|
||||
int stages;
|
||||
int initFlag;
|
||||
int gainMap;
|
||||
|
||||
int32_t maxLrt;
|
||||
int32_t minLrt;
|
||||
// Log LRT factor with time-smoothing in Q8.
|
||||
int32_t logLrtTimeAvgW32[HALF_ANAL_BLOCKL];
|
||||
int32_t featureLogLrt;
|
||||
int32_t thresholdLogLrt;
|
||||
int16_t weightLogLrt;
|
||||
|
||||
uint32_t featureSpecDiff;
|
||||
uint32_t thresholdSpecDiff;
|
||||
int16_t weightSpecDiff;
|
||||
|
||||
uint32_t featureSpecFlat;
|
||||
uint32_t thresholdSpecFlat;
|
||||
int16_t weightSpecFlat;
|
||||
|
||||
// Conservative estimate of noise spectrum.
|
||||
int32_t avgMagnPause[HALF_ANAL_BLOCKL];
|
||||
uint32_t magnEnergy;
|
||||
uint32_t sumMagn;
|
||||
uint32_t curAvgMagnEnergy;
|
||||
uint32_t timeAvgMagnEnergy;
|
||||
uint32_t timeAvgMagnEnergyTmp;
|
||||
|
||||
uint32_t whiteNoiseLevel; // Initial noise estimate.
|
||||
// Initial magnitude spectrum estimate.
|
||||
uint32_t initMagnEst[HALF_ANAL_BLOCKL];
|
||||
// Pink noise parameters:
|
||||
int32_t pinkNoiseNumerator; // Numerator.
|
||||
int32_t pinkNoiseExp; // Power of freq.
|
||||
int minNorm; // Smallest normalization factor.
|
||||
int zeroInputSignal; // Zero input signal flag.
|
||||
|
||||
// Noise spectrum from previous frame.
|
||||
uint32_t prevNoiseU32[HALF_ANAL_BLOCKL];
|
||||
// Magnitude spectrum from previous frame.
|
||||
uint16_t prevMagnU16[HALF_ANAL_BLOCKL];
|
||||
// Prior speech/noise probability in Q14.
|
||||
int16_t priorNonSpeechProb;
|
||||
|
||||
int blockIndex; // Frame index counter.
|
||||
// Parameter for updating or estimating thresholds/weights for prior model.
|
||||
int modelUpdate;
|
||||
int cntThresUpdate;
|
||||
|
||||
// Histograms for parameter estimation.
|
||||
int16_t histLrt[HIST_PAR_EST];
|
||||
int16_t histSpecFlat[HIST_PAR_EST];
|
||||
int16_t histSpecDiff[HIST_PAR_EST];
|
||||
|
||||
// Quantities for high band estimate.
|
||||
int16_t dataBufHBFX[NUM_HIGH_BANDS_MAX][ANAL_BLOCKL_MAX];
|
||||
|
||||
int qNoise;
|
||||
int prevQNoise;
|
||||
int prevQMagn;
|
||||
size_t blockLen10ms;
|
||||
|
||||
int16_t real[ANAL_BLOCKL_MAX];
|
||||
int16_t imag[ANAL_BLOCKL_MAX];
|
||||
int32_t energyIn;
|
||||
int scaleEnergyIn;
|
||||
int normData;
|
||||
|
||||
struct RealFFT* real_fft;
|
||||
} NoiseSuppressionFixedC;
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C"
|
||||
{
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* WebRtcNsx_InitCore(...)
|
||||
*
|
||||
* This function initializes a noise suppression instance
|
||||
*
|
||||
* Input:
|
||||
* - inst : Instance that should be initialized
|
||||
* - fs : Sampling frequency
|
||||
*
|
||||
* Output:
|
||||
* - inst : Initialized instance
|
||||
*
|
||||
* Return value : 0 - Ok
|
||||
* -1 - Error
|
||||
*/
|
||||
int32_t WebRtcNsx_InitCore(NoiseSuppressionFixedC* inst, uint32_t fs);
|
||||
|
||||
/****************************************************************************
|
||||
* WebRtcNsx_set_policy_core(...)
|
||||
*
|
||||
* This changes the aggressiveness of the noise suppression method.
|
||||
*
|
||||
* Input:
|
||||
* - inst : Instance that should be initialized
|
||||
* - mode : 0: Mild (6 dB), 1: Medium (10 dB), 2: Aggressive (15 dB)
|
||||
*
|
||||
* Output:
|
||||
* - inst : Initialized instance
|
||||
*
|
||||
* Return value : 0 - Ok
|
||||
* -1 - Error
|
||||
*/
|
||||
int WebRtcNsx_set_policy_core(NoiseSuppressionFixedC* inst, int mode);
|
||||
|
||||
/****************************************************************************
|
||||
* WebRtcNsx_ProcessCore
|
||||
*
|
||||
* Do noise suppression.
|
||||
*
|
||||
* Input:
|
||||
* - inst : Instance that should be initialized
|
||||
* - inFrame : Input speech frame for each band
|
||||
* - num_bands : Number of bands
|
||||
*
|
||||
* Output:
|
||||
* - inst : Updated instance
|
||||
* - outFrame : Output speech frame for each band
|
||||
*/
|
||||
void WebRtcNsx_ProcessCore(NoiseSuppressionFixedC* inst,
|
||||
const short* const* inFrame,
|
||||
int num_bands,
|
||||
short* const* outFrame);
|
||||
|
||||
/****************************************************************************
|
||||
* Some function pointers, for internal functions shared by ARM NEON and
|
||||
* generic C code.
|
||||
*/
|
||||
// Noise Estimation.
|
||||
typedef void (*NoiseEstimation)(NoiseSuppressionFixedC* inst,
|
||||
uint16_t* magn,
|
||||
uint32_t* noise,
|
||||
int16_t* q_noise);
|
||||
extern NoiseEstimation WebRtcNsx_NoiseEstimation;
|
||||
|
||||
// Filter the data in the frequency domain, and create spectrum.
|
||||
typedef void (*PrepareSpectrum)(NoiseSuppressionFixedC* inst,
|
||||
int16_t* freq_buff);
|
||||
extern PrepareSpectrum WebRtcNsx_PrepareSpectrum;
|
||||
|
||||
// For the noise supression process, synthesis, read out fully processed
|
||||
// segment, and update synthesis buffer.
|
||||
typedef void (*SynthesisUpdate)(NoiseSuppressionFixedC* inst,
|
||||
int16_t* out_frame,
|
||||
int16_t gain_factor);
|
||||
extern SynthesisUpdate WebRtcNsx_SynthesisUpdate;
|
||||
|
||||
// Update analysis buffer for lower band, and window data before FFT.
|
||||
typedef void (*AnalysisUpdate)(NoiseSuppressionFixedC* inst,
|
||||
int16_t* out,
|
||||
int16_t* new_speech);
|
||||
extern AnalysisUpdate WebRtcNsx_AnalysisUpdate;
|
||||
|
||||
// Denormalize the real-valued signal |in|, the output from inverse FFT.
|
||||
typedef void (*Denormalize)(NoiseSuppressionFixedC* inst,
|
||||
int16_t* in,
|
||||
int factor);
|
||||
extern Denormalize WebRtcNsx_Denormalize;
|
||||
|
||||
// Normalize the real-valued signal |in|, the input to forward FFT.
|
||||
typedef void (*NormalizeRealBuffer)(NoiseSuppressionFixedC* inst,
|
||||
const int16_t* in,
|
||||
int16_t* out);
|
||||
extern NormalizeRealBuffer WebRtcNsx_NormalizeRealBuffer;
|
||||
|
||||
// Compute speech/noise probability.
|
||||
// Intended to be private.
|
||||
void WebRtcNsx_SpeechNoiseProb(NoiseSuppressionFixedC* inst,
|
||||
uint16_t* nonSpeechProbFinal,
|
||||
uint32_t* priorLocSnr,
|
||||
uint32_t* postLocSnr);
|
||||
|
||||
#if defined(WEBRTC_HAS_NEON)
|
||||
// For the above function pointers, functions for generic platforms are declared
|
||||
// and defined as static in file nsx_core.c, while those for ARM Neon platforms
|
||||
// are declared below and defined in file nsx_core_neon.c.
|
||||
void WebRtcNsx_NoiseEstimationNeon(NoiseSuppressionFixedC* inst,
|
||||
uint16_t* magn,
|
||||
uint32_t* noise,
|
||||
int16_t* q_noise);
|
||||
void WebRtcNsx_SynthesisUpdateNeon(NoiseSuppressionFixedC* inst,
|
||||
int16_t* out_frame,
|
||||
int16_t gain_factor);
|
||||
void WebRtcNsx_AnalysisUpdateNeon(NoiseSuppressionFixedC* inst,
|
||||
int16_t* out,
|
||||
int16_t* new_speech);
|
||||
void WebRtcNsx_PrepareSpectrumNeon(NoiseSuppressionFixedC* inst,
|
||||
int16_t* freq_buff);
|
||||
#endif
|
||||
|
||||
#if defined(MIPS32_LE)
|
||||
// For the above function pointers, functions for generic platforms are declared
|
||||
// and defined as static in file nsx_core.c, while those for MIPS platforms
|
||||
// are declared below and defined in file nsx_core_mips.c.
|
||||
void WebRtcNsx_SynthesisUpdate_mips(NoiseSuppressionFixedC* inst,
|
||||
int16_t* out_frame,
|
||||
int16_t gain_factor);
|
||||
void WebRtcNsx_AnalysisUpdate_mips(NoiseSuppressionFixedC* inst,
|
||||
int16_t* out,
|
||||
int16_t* new_speech);
|
||||
void WebRtcNsx_PrepareSpectrum_mips(NoiseSuppressionFixedC* inst,
|
||||
int16_t* freq_buff);
|
||||
void WebRtcNsx_NormalizeRealBuffer_mips(NoiseSuppressionFixedC* inst,
|
||||
const int16_t* in,
|
||||
int16_t* out);
|
||||
#if defined(MIPS_DSP_R1_LE)
|
||||
void WebRtcNsx_Denormalize_mips(NoiseSuppressionFixedC* inst,
|
||||
int16_t* in,
|
||||
int factor);
|
||||
#endif
|
||||
|
||||
#endif
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif // WEBRTC_MODULES_AUDIO_PROCESSING_NS_MAIN_SOURCE_NSX_CORE_H_
|
||||
260
modules/audio_processing/ns/nsx_core_c.c
Normal file
260
modules/audio_processing/ns/nsx_core_c.c
Normal file
@ -0,0 +1,260 @@
|
||||
/*
|
||||
* Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
|
||||
*
|
||||
* Use of this source code is governed by a BSD-style license
|
||||
* that can be found in the LICENSE file in the root of the source
|
||||
* tree. An additional intellectual property rights grant can be found
|
||||
* in the file PATENTS. All contributing project authors may
|
||||
* be found in the AUTHORS file in the root of the source tree.
|
||||
*/
|
||||
|
||||
#include "webrtc/rtc_base/checks.h"
|
||||
#include "webrtc/modules/audio_processing/ns/noise_suppression_x.h"
|
||||
#include "webrtc/modules/audio_processing/ns/nsx_core.h"
|
||||
#include "webrtc/modules/audio_processing/ns/nsx_defines.h"
|
||||
|
||||
static const int16_t kIndicatorTable[17] = {
|
||||
0, 2017, 3809, 5227, 6258, 6963, 7424, 7718,
|
||||
7901, 8014, 8084, 8126, 8152, 8168, 8177, 8183, 8187
|
||||
};
|
||||
|
||||
// Compute speech/noise probability
|
||||
// speech/noise probability is returned in: probSpeechFinal
|
||||
//snrLocPrior is the prior SNR for each frequency (in Q11)
|
||||
//snrLocPost is the post SNR for each frequency (in Q11)
|
||||
void WebRtcNsx_SpeechNoiseProb(NoiseSuppressionFixedC* inst,
|
||||
uint16_t* nonSpeechProbFinal,
|
||||
uint32_t* priorLocSnr,
|
||||
uint32_t* postLocSnr) {
|
||||
uint32_t zeros, num, den, tmpU32no1, tmpU32no2, tmpU32no3;
|
||||
int32_t invLrtFX, indPriorFX, tmp32, tmp32no1, tmp32no2, besselTmpFX32;
|
||||
int32_t frac32, logTmp;
|
||||
int32_t logLrtTimeAvgKsumFX;
|
||||
int16_t indPriorFX16;
|
||||
int16_t tmp16, tmp16no1, tmp16no2, tmpIndFX, tableIndex, frac, intPart;
|
||||
size_t i;
|
||||
int normTmp, normTmp2, nShifts;
|
||||
|
||||
// compute feature based on average LR factor
|
||||
// this is the average over all frequencies of the smooth log LRT
|
||||
logLrtTimeAvgKsumFX = 0;
|
||||
for (i = 0; i < inst->magnLen; i++) {
|
||||
besselTmpFX32 = (int32_t)postLocSnr[i]; // Q11
|
||||
normTmp = WebRtcSpl_NormU32(postLocSnr[i]);
|
||||
num = postLocSnr[i] << normTmp; // Q(11+normTmp)
|
||||
if (normTmp > 10) {
|
||||
den = priorLocSnr[i] << (normTmp - 11); // Q(normTmp)
|
||||
} else {
|
||||
den = priorLocSnr[i] >> (11 - normTmp); // Q(normTmp)
|
||||
}
|
||||
if (den > 0) {
|
||||
besselTmpFX32 -= num / den; // Q11
|
||||
} else {
|
||||
besselTmpFX32 = 0;
|
||||
}
|
||||
|
||||
// inst->logLrtTimeAvg[i] += LRT_TAVG * (besselTmp - log(snrLocPrior)
|
||||
// - inst->logLrtTimeAvg[i]);
|
||||
// Here, LRT_TAVG = 0.5
|
||||
zeros = WebRtcSpl_NormU32(priorLocSnr[i]);
|
||||
frac32 = (int32_t)(((priorLocSnr[i] << zeros) & 0x7FFFFFFF) >> 19);
|
||||
tmp32 = (frac32 * frac32 * -43) >> 19;
|
||||
tmp32 += ((int16_t)frac32 * 5412) >> 12;
|
||||
frac32 = tmp32 + 37;
|
||||
// tmp32 = log2(priorLocSnr[i])
|
||||
tmp32 = (int32_t)(((31 - zeros) << 12) + frac32) - (11 << 12); // Q12
|
||||
logTmp = (tmp32 * 178) >> 8; // log2(priorLocSnr[i])*log(2)
|
||||
// tmp32no1 = LRT_TAVG * (log(snrLocPrior) + inst->logLrtTimeAvg[i]) in Q12.
|
||||
tmp32no1 = (logTmp + inst->logLrtTimeAvgW32[i]) / 2;
|
||||
inst->logLrtTimeAvgW32[i] += (besselTmpFX32 - tmp32no1); // Q12
|
||||
|
||||
logLrtTimeAvgKsumFX += inst->logLrtTimeAvgW32[i]; // Q12
|
||||
}
|
||||
inst->featureLogLrt = (logLrtTimeAvgKsumFX * BIN_SIZE_LRT) >>
|
||||
(inst->stages + 11);
|
||||
|
||||
// done with computation of LR factor
|
||||
|
||||
//
|
||||
//compute the indicator functions
|
||||
//
|
||||
|
||||
// average LRT feature
|
||||
// FLOAT code
|
||||
// indicator0 = 0.5 * (tanh(widthPrior *
|
||||
// (logLrtTimeAvgKsum - threshPrior0)) + 1.0);
|
||||
tmpIndFX = 16384; // Q14(1.0)
|
||||
tmp32no1 = logLrtTimeAvgKsumFX - inst->thresholdLogLrt; // Q12
|
||||
nShifts = 7 - inst->stages; // WIDTH_PR_MAP_SHIFT - inst->stages + 5;
|
||||
//use larger width in tanh map for pause regions
|
||||
if (tmp32no1 < 0) {
|
||||
tmpIndFX = 0;
|
||||
tmp32no1 = -tmp32no1;
|
||||
//widthPrior = widthPrior * 2.0;
|
||||
nShifts++;
|
||||
}
|
||||
tmp32no1 = WEBRTC_SPL_SHIFT_W32(tmp32no1, nShifts); // Q14
|
||||
// compute indicator function: sigmoid map
|
||||
if (tmp32no1 < (16 << 14) && tmp32no1 >= 0) {
|
||||
tableIndex = (int16_t)(tmp32no1 >> 14);
|
||||
tmp16no2 = kIndicatorTable[tableIndex];
|
||||
tmp16no1 = kIndicatorTable[tableIndex + 1] - kIndicatorTable[tableIndex];
|
||||
frac = (int16_t)(tmp32no1 & 0x00003fff); // Q14
|
||||
tmp16no2 += (int16_t)((tmp16no1 * frac) >> 14);
|
||||
if (tmpIndFX == 0) {
|
||||
tmpIndFX = 8192 - tmp16no2; // Q14
|
||||
} else {
|
||||
tmpIndFX = 8192 + tmp16no2; // Q14
|
||||
}
|
||||
}
|
||||
indPriorFX = inst->weightLogLrt * tmpIndFX; // 6*Q14
|
||||
|
||||
//spectral flatness feature
|
||||
if (inst->weightSpecFlat) {
|
||||
tmpU32no1 = WEBRTC_SPL_UMUL(inst->featureSpecFlat, 400); // Q10
|
||||
tmpIndFX = 16384; // Q14(1.0)
|
||||
//use larger width in tanh map for pause regions
|
||||
tmpU32no2 = inst->thresholdSpecFlat - tmpU32no1; //Q10
|
||||
nShifts = 4;
|
||||
if (inst->thresholdSpecFlat < tmpU32no1) {
|
||||
tmpIndFX = 0;
|
||||
tmpU32no2 = tmpU32no1 - inst->thresholdSpecFlat;
|
||||
//widthPrior = widthPrior * 2.0;
|
||||
nShifts++;
|
||||
}
|
||||
tmpU32no1 = WebRtcSpl_DivU32U16(tmpU32no2 << nShifts, 25); // Q14
|
||||
// compute indicator function: sigmoid map
|
||||
// FLOAT code
|
||||
// indicator1 = 0.5 * (tanh(sgnMap * widthPrior *
|
||||
// (threshPrior1 - tmpFloat1)) + 1.0);
|
||||
if (tmpU32no1 < (16 << 14)) {
|
||||
tableIndex = (int16_t)(tmpU32no1 >> 14);
|
||||
tmp16no2 = kIndicatorTable[tableIndex];
|
||||
tmp16no1 = kIndicatorTable[tableIndex + 1] - kIndicatorTable[tableIndex];
|
||||
frac = (int16_t)(tmpU32no1 & 0x00003fff); // Q14
|
||||
tmp16no2 += (int16_t)((tmp16no1 * frac) >> 14);
|
||||
if (tmpIndFX) {
|
||||
tmpIndFX = 8192 + tmp16no2; // Q14
|
||||
} else {
|
||||
tmpIndFX = 8192 - tmp16no2; // Q14
|
||||
}
|
||||
}
|
||||
indPriorFX += inst->weightSpecFlat * tmpIndFX; // 6*Q14
|
||||
}
|
||||
|
||||
//for template spectral-difference
|
||||
if (inst->weightSpecDiff) {
|
||||
tmpU32no1 = 0;
|
||||
if (inst->featureSpecDiff) {
|
||||
normTmp = WEBRTC_SPL_MIN(20 - inst->stages,
|
||||
WebRtcSpl_NormU32(inst->featureSpecDiff));
|
||||
RTC_DCHECK_GE(normTmp, 0);
|
||||
tmpU32no1 = inst->featureSpecDiff << normTmp; // Q(normTmp-2*stages)
|
||||
tmpU32no2 = inst->timeAvgMagnEnergy >> (20 - inst->stages - normTmp);
|
||||
if (tmpU32no2 > 0) {
|
||||
// Q(20 - inst->stages)
|
||||
tmpU32no1 /= tmpU32no2;
|
||||
} else {
|
||||
tmpU32no1 = (uint32_t)(0x7fffffff);
|
||||
}
|
||||
}
|
||||
tmpU32no3 = (inst->thresholdSpecDiff << 17) / 25;
|
||||
tmpU32no2 = tmpU32no1 - tmpU32no3;
|
||||
nShifts = 1;
|
||||
tmpIndFX = 16384; // Q14(1.0)
|
||||
//use larger width in tanh map for pause regions
|
||||
if (tmpU32no2 & 0x80000000) {
|
||||
tmpIndFX = 0;
|
||||
tmpU32no2 = tmpU32no3 - tmpU32no1;
|
||||
//widthPrior = widthPrior * 2.0;
|
||||
nShifts--;
|
||||
}
|
||||
tmpU32no1 = tmpU32no2 >> nShifts;
|
||||
// compute indicator function: sigmoid map
|
||||
/* FLOAT code
|
||||
indicator2 = 0.5 * (tanh(widthPrior * (tmpFloat1 - threshPrior2)) + 1.0);
|
||||
*/
|
||||
if (tmpU32no1 < (16 << 14)) {
|
||||
tableIndex = (int16_t)(tmpU32no1 >> 14);
|
||||
tmp16no2 = kIndicatorTable[tableIndex];
|
||||
tmp16no1 = kIndicatorTable[tableIndex + 1] - kIndicatorTable[tableIndex];
|
||||
frac = (int16_t)(tmpU32no1 & 0x00003fff); // Q14
|
||||
tmp16no2 += (int16_t)WEBRTC_SPL_MUL_16_16_RSFT_WITH_ROUND(
|
||||
tmp16no1, frac, 14);
|
||||
if (tmpIndFX) {
|
||||
tmpIndFX = 8192 + tmp16no2;
|
||||
} else {
|
||||
tmpIndFX = 8192 - tmp16no2;
|
||||
}
|
||||
}
|
||||
indPriorFX += inst->weightSpecDiff * tmpIndFX; // 6*Q14
|
||||
}
|
||||
|
||||
//combine the indicator function with the feature weights
|
||||
// FLOAT code
|
||||
// indPrior = 1 - (weightIndPrior0 * indicator0 + weightIndPrior1 *
|
||||
// indicator1 + weightIndPrior2 * indicator2);
|
||||
indPriorFX16 = WebRtcSpl_DivW32W16ResW16(98307 - indPriorFX, 6); // Q14
|
||||
// done with computing indicator function
|
||||
|
||||
//compute the prior probability
|
||||
// FLOAT code
|
||||
// inst->priorNonSpeechProb += PRIOR_UPDATE *
|
||||
// (indPriorNonSpeech - inst->priorNonSpeechProb);
|
||||
tmp16 = indPriorFX16 - inst->priorNonSpeechProb; // Q14
|
||||
inst->priorNonSpeechProb += (int16_t)((PRIOR_UPDATE_Q14 * tmp16) >> 14);
|
||||
|
||||
//final speech probability: combine prior model with LR factor:
|
||||
|
||||
memset(nonSpeechProbFinal, 0, sizeof(uint16_t) * inst->magnLen);
|
||||
|
||||
if (inst->priorNonSpeechProb > 0) {
|
||||
for (i = 0; i < inst->magnLen; i++) {
|
||||
// FLOAT code
|
||||
// invLrt = exp(inst->logLrtTimeAvg[i]);
|
||||
// invLrt = inst->priorSpeechProb * invLrt;
|
||||
// nonSpeechProbFinal[i] = (1.0 - inst->priorSpeechProb) /
|
||||
// (1.0 - inst->priorSpeechProb + invLrt);
|
||||
// invLrt = (1.0 - inst->priorNonSpeechProb) * invLrt;
|
||||
// nonSpeechProbFinal[i] = inst->priorNonSpeechProb /
|
||||
// (inst->priorNonSpeechProb + invLrt);
|
||||
if (inst->logLrtTimeAvgW32[i] < 65300) {
|
||||
tmp32no1 = (inst->logLrtTimeAvgW32[i] * 23637) >> 14; // Q12
|
||||
intPart = (int16_t)(tmp32no1 >> 12);
|
||||
if (intPart < -8) {
|
||||
intPart = -8;
|
||||
}
|
||||
frac = (int16_t)(tmp32no1 & 0x00000fff); // Q12
|
||||
|
||||
// Quadratic approximation of 2^frac
|
||||
tmp32no2 = (frac * frac * 44) >> 19; // Q12.
|
||||
tmp32no2 += (frac * 84) >> 7; // Q12
|
||||
invLrtFX = (1 << (8 + intPart)) +
|
||||
WEBRTC_SPL_SHIFT_W32(tmp32no2, intPart - 4); // Q8
|
||||
|
||||
normTmp = WebRtcSpl_NormW32(invLrtFX);
|
||||
normTmp2 = WebRtcSpl_NormW16((16384 - inst->priorNonSpeechProb));
|
||||
if (normTmp + normTmp2 >= 7) {
|
||||
if (normTmp + normTmp2 < 15) {
|
||||
invLrtFX >>= 15 - normTmp2 - normTmp;
|
||||
// Q(normTmp+normTmp2-7)
|
||||
tmp32no1 = invLrtFX * (16384 - inst->priorNonSpeechProb);
|
||||
// Q(normTmp+normTmp2+7)
|
||||
invLrtFX = WEBRTC_SPL_SHIFT_W32(tmp32no1, 7 - normTmp - normTmp2);
|
||||
// Q14
|
||||
} else {
|
||||
tmp32no1 = invLrtFX * (16384 - inst->priorNonSpeechProb);
|
||||
// Q22
|
||||
invLrtFX = tmp32no1 >> 8; // Q14.
|
||||
}
|
||||
|
||||
tmp32no1 = (int32_t)inst->priorNonSpeechProb << 8; // Q22
|
||||
|
||||
nonSpeechProbFinal[i] = tmp32no1 /
|
||||
(inst->priorNonSpeechProb + invLrtFX); // Q8
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
1002
modules/audio_processing/ns/nsx_core_mips.c
Normal file
1002
modules/audio_processing/ns/nsx_core_mips.c
Normal file
File diff suppressed because it is too large
Load Diff
606
modules/audio_processing/ns/nsx_core_neon.c
Normal file
606
modules/audio_processing/ns/nsx_core_neon.c
Normal file
@ -0,0 +1,606 @@
|
||||
/*
|
||||
* Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
|
||||
*
|
||||
* Use of this source code is governed by a BSD-style license
|
||||
* that can be found in the LICENSE file in the root of the source
|
||||
* tree. An additional intellectual property rights grant can be found
|
||||
* in the file PATENTS. All contributing project authors may
|
||||
* be found in the AUTHORS file in the root of the source tree.
|
||||
*/
|
||||
|
||||
#include "webrtc/modules/audio_processing/ns/nsx_core.h"
|
||||
|
||||
#include <arm_neon.h>
|
||||
|
||||
#include "webrtc/rtc_base/checks.h"
|
||||
|
||||
// Constants to compensate for shifting signal log(2^shifts).
|
||||
const int16_t WebRtcNsx_kLogTable[9] = {
|
||||
0, 177, 355, 532, 710, 887, 1065, 1242, 1420
|
||||
};
|
||||
|
||||
const int16_t WebRtcNsx_kCounterDiv[201] = {
|
||||
32767, 16384, 10923, 8192, 6554, 5461, 4681, 4096, 3641, 3277, 2979, 2731,
|
||||
2521, 2341, 2185, 2048, 1928, 1820, 1725, 1638, 1560, 1489, 1425, 1365, 1311,
|
||||
1260, 1214, 1170, 1130, 1092, 1057, 1024, 993, 964, 936, 910, 886, 862, 840,
|
||||
819, 799, 780, 762, 745, 728, 712, 697, 683, 669, 655, 643, 630, 618, 607,
|
||||
596, 585, 575, 565, 555, 546, 537, 529, 520, 512, 504, 496, 489, 482, 475,
|
||||
468, 462, 455, 449, 443, 437, 431, 426, 420, 415, 410, 405, 400, 395, 390,
|
||||
386, 381, 377, 372, 368, 364, 360, 356, 352, 349, 345, 341, 338, 334, 331,
|
||||
328, 324, 321, 318, 315, 312, 309, 306, 303, 301, 298, 295, 293, 290, 287,
|
||||
285, 282, 280, 278, 275, 273, 271, 269, 266, 264, 262, 260, 258, 256, 254,
|
||||
252, 250, 248, 246, 245, 243, 241, 239, 237, 236, 234, 232, 231, 229, 228,
|
||||
226, 224, 223, 221, 220, 218, 217, 216, 214, 213, 211, 210, 209, 207, 206,
|
||||
205, 204, 202, 201, 200, 199, 197, 196, 195, 194, 193, 192, 191, 189, 188,
|
||||
187, 186, 185, 184, 183, 182, 181, 180, 179, 178, 177, 176, 175, 174, 173,
|
||||
172, 172, 171, 170, 169, 168, 167, 166, 165, 165, 164, 163
|
||||
};
|
||||
|
||||
const int16_t WebRtcNsx_kLogTableFrac[256] = {
|
||||
0, 1, 3, 4, 6, 7, 9, 10, 11, 13, 14, 16, 17, 18, 20, 21,
|
||||
22, 24, 25, 26, 28, 29, 30, 32, 33, 34, 36, 37, 38, 40, 41, 42,
|
||||
44, 45, 46, 47, 49, 50, 51, 52, 54, 55, 56, 57, 59, 60, 61, 62,
|
||||
63, 65, 66, 67, 68, 69, 71, 72, 73, 74, 75, 77, 78, 79, 80, 81,
|
||||
82, 84, 85, 86, 87, 88, 89, 90, 92, 93, 94, 95, 96, 97, 98, 99,
|
||||
100, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 116,
|
||||
117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131,
|
||||
132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146,
|
||||
147, 148, 149, 150, 151, 152, 153, 154, 155, 155, 156, 157, 158, 159, 160,
|
||||
161, 162, 163, 164, 165, 166, 167, 168, 169, 169, 170, 171, 172, 173, 174,
|
||||
175, 176, 177, 178, 178, 179, 180, 181, 182, 183, 184, 185, 185, 186, 187,
|
||||
188, 189, 190, 191, 192, 192, 193, 194, 195, 196, 197, 198, 198, 199, 200,
|
||||
201, 202, 203, 203, 204, 205, 206, 207, 208, 208, 209, 210, 211, 212, 212,
|
||||
213, 214, 215, 216, 216, 217, 218, 219, 220, 220, 221, 222, 223, 224, 224,
|
||||
225, 226, 227, 228, 228, 229, 230, 231, 231, 232, 233, 234, 234, 235, 236,
|
||||
237, 238, 238, 239, 240, 241, 241, 242, 243, 244, 244, 245, 246, 247, 247,
|
||||
248, 249, 249, 250, 251, 252, 252, 253, 254, 255, 255
|
||||
};
|
||||
|
||||
// Update the noise estimation information.
|
||||
static void UpdateNoiseEstimateNeon(NoiseSuppressionFixedC* inst, int offset) {
|
||||
const int16_t kExp2Const = 11819; // Q13
|
||||
int16_t* ptr_noiseEstLogQuantile = NULL;
|
||||
int16_t* ptr_noiseEstQuantile = NULL;
|
||||
int16x4_t kExp2Const16x4 = vdup_n_s16(kExp2Const);
|
||||
int32x4_t twentyOne32x4 = vdupq_n_s32(21);
|
||||
int32x4_t constA32x4 = vdupq_n_s32(0x1fffff);
|
||||
int32x4_t constB32x4 = vdupq_n_s32(0x200000);
|
||||
|
||||
int16_t tmp16 = WebRtcSpl_MaxValueW16(inst->noiseEstLogQuantile + offset,
|
||||
inst->magnLen);
|
||||
|
||||
// Guarantee a Q-domain as high as possible and still fit in int16
|
||||
inst->qNoise = 14 - (int) WEBRTC_SPL_MUL_16_16_RSFT_WITH_ROUND(kExp2Const,
|
||||
tmp16,
|
||||
21);
|
||||
|
||||
int32x4_t qNoise32x4 = vdupq_n_s32(inst->qNoise);
|
||||
|
||||
for (ptr_noiseEstLogQuantile = &inst->noiseEstLogQuantile[offset],
|
||||
ptr_noiseEstQuantile = &inst->noiseEstQuantile[0];
|
||||
ptr_noiseEstQuantile < &inst->noiseEstQuantile[inst->magnLen - 3];
|
||||
ptr_noiseEstQuantile += 4, ptr_noiseEstLogQuantile += 4) {
|
||||
|
||||
// tmp32no2 = kExp2Const * inst->noiseEstLogQuantile[offset + i];
|
||||
int16x4_t v16x4 = vld1_s16(ptr_noiseEstLogQuantile);
|
||||
int32x4_t v32x4B = vmull_s16(v16x4, kExp2Const16x4);
|
||||
|
||||
// tmp32no1 = (0x00200000 | (tmp32no2 & 0x001FFFFF)); // 2^21 + frac
|
||||
int32x4_t v32x4A = vandq_s32(v32x4B, constA32x4);
|
||||
v32x4A = vorrq_s32(v32x4A, constB32x4);
|
||||
|
||||
// tmp16 = (int16_t)(tmp32no2 >> 21);
|
||||
v32x4B = vshrq_n_s32(v32x4B, 21);
|
||||
|
||||
// tmp16 -= 21;// shift 21 to get result in Q0
|
||||
v32x4B = vsubq_s32(v32x4B, twentyOne32x4);
|
||||
|
||||
// tmp16 += (int16_t) inst->qNoise;
|
||||
// shift to get result in Q(qNoise)
|
||||
v32x4B = vaddq_s32(v32x4B, qNoise32x4);
|
||||
|
||||
// if (tmp16 < 0) {
|
||||
// tmp32no1 >>= -tmp16;
|
||||
// } else {
|
||||
// tmp32no1 <<= tmp16;
|
||||
// }
|
||||
v32x4B = vshlq_s32(v32x4A, v32x4B);
|
||||
|
||||
// tmp16 = WebRtcSpl_SatW32ToW16(tmp32no1);
|
||||
v16x4 = vqmovn_s32(v32x4B);
|
||||
|
||||
//inst->noiseEstQuantile[i] = tmp16;
|
||||
vst1_s16(ptr_noiseEstQuantile, v16x4);
|
||||
}
|
||||
|
||||
// Last iteration:
|
||||
|
||||
// inst->quantile[i]=exp(inst->lquantile[offset+i]);
|
||||
// in Q21
|
||||
int32_t tmp32no2 = kExp2Const * *ptr_noiseEstLogQuantile;
|
||||
int32_t tmp32no1 = (0x00200000 | (tmp32no2 & 0x001FFFFF)); // 2^21 + frac
|
||||
|
||||
tmp16 = (int16_t)(tmp32no2 >> 21);
|
||||
tmp16 -= 21;// shift 21 to get result in Q0
|
||||
tmp16 += (int16_t) inst->qNoise; //shift to get result in Q(qNoise)
|
||||
if (tmp16 < 0) {
|
||||
tmp32no1 >>= -tmp16;
|
||||
} else {
|
||||
tmp32no1 <<= tmp16;
|
||||
}
|
||||
*ptr_noiseEstQuantile = WebRtcSpl_SatW32ToW16(tmp32no1);
|
||||
}
|
||||
|
||||
// Noise Estimation
|
||||
void WebRtcNsx_NoiseEstimationNeon(NoiseSuppressionFixedC* inst,
|
||||
uint16_t* magn,
|
||||
uint32_t* noise,
|
||||
int16_t* q_noise) {
|
||||
int16_t lmagn[HALF_ANAL_BLOCKL], counter, countDiv;
|
||||
int16_t countProd, delta, zeros, frac;
|
||||
int16_t log2, tabind, logval, tmp16, tmp16no1, tmp16no2;
|
||||
const int16_t log2_const = 22713;
|
||||
const int16_t width_factor = 21845;
|
||||
|
||||
size_t i, s, offset;
|
||||
|
||||
tabind = inst->stages - inst->normData;
|
||||
RTC_DCHECK_LT(tabind, 9);
|
||||
RTC_DCHECK_GT(tabind, -9);
|
||||
if (tabind < 0) {
|
||||
logval = -WebRtcNsx_kLogTable[-tabind];
|
||||
} else {
|
||||
logval = WebRtcNsx_kLogTable[tabind];
|
||||
}
|
||||
|
||||
int16x8_t logval_16x8 = vdupq_n_s16(logval);
|
||||
|
||||
// lmagn(i)=log(magn(i))=log(2)*log2(magn(i))
|
||||
// magn is in Q(-stages), and the real lmagn values are:
|
||||
// real_lmagn(i)=log(magn(i)*2^stages)=log(magn(i))+log(2^stages)
|
||||
// lmagn in Q8
|
||||
for (i = 0; i < inst->magnLen; i++) {
|
||||
if (magn[i]) {
|
||||
zeros = WebRtcSpl_NormU32((uint32_t)magn[i]);
|
||||
frac = (int16_t)((((uint32_t)magn[i] << zeros)
|
||||
& 0x7FFFFFFF) >> 23);
|
||||
RTC_DCHECK_LT(frac, 256);
|
||||
// log2(magn(i))
|
||||
log2 = (int16_t)(((31 - zeros) << 8)
|
||||
+ WebRtcNsx_kLogTableFrac[frac]);
|
||||
// log2(magn(i))*log(2)
|
||||
lmagn[i] = (int16_t)((log2 * log2_const) >> 15);
|
||||
// + log(2^stages)
|
||||
lmagn[i] += logval;
|
||||
} else {
|
||||
lmagn[i] = logval;
|
||||
}
|
||||
}
|
||||
|
||||
int16x4_t Q3_16x4 = vdup_n_s16(3);
|
||||
int16x8_t WIDTHQ8_16x8 = vdupq_n_s16(WIDTH_Q8);
|
||||
int16x8_t WIDTHFACTOR_16x8 = vdupq_n_s16(width_factor);
|
||||
|
||||
int16_t factor = FACTOR_Q7;
|
||||
if (inst->blockIndex < END_STARTUP_LONG)
|
||||
factor = FACTOR_Q7_STARTUP;
|
||||
|
||||
// Loop over simultaneous estimates
|
||||
for (s = 0; s < SIMULT; s++) {
|
||||
offset = s * inst->magnLen;
|
||||
|
||||
// Get counter values from state
|
||||
counter = inst->noiseEstCounter[s];
|
||||
RTC_DCHECK_LT(counter, 201);
|
||||
countDiv = WebRtcNsx_kCounterDiv[counter];
|
||||
countProd = (int16_t)(counter * countDiv);
|
||||
|
||||
// quant_est(...)
|
||||
int16_t deltaBuff[8];
|
||||
int16x4_t tmp16x4_0;
|
||||
int16x4_t tmp16x4_1;
|
||||
int16x4_t countDiv_16x4 = vdup_n_s16(countDiv);
|
||||
int16x8_t countProd_16x8 = vdupq_n_s16(countProd);
|
||||
int16x8_t tmp16x8_0 = vdupq_n_s16(countDiv);
|
||||
int16x8_t prod16x8 = vqrdmulhq_s16(WIDTHFACTOR_16x8, tmp16x8_0);
|
||||
int16x8_t tmp16x8_1;
|
||||
int16x8_t tmp16x8_2;
|
||||
int16x8_t tmp16x8_3;
|
||||
uint16x8_t tmp16x8_4;
|
||||
int32x4_t tmp32x4;
|
||||
|
||||
for (i = 0; i + 7 < inst->magnLen; i += 8) {
|
||||
// Compute delta.
|
||||
// Smaller step size during startup. This prevents from using
|
||||
// unrealistic values causing overflow.
|
||||
tmp16x8_0 = vdupq_n_s16(factor);
|
||||
vst1q_s16(deltaBuff, tmp16x8_0);
|
||||
|
||||
int j;
|
||||
for (j = 0; j < 8; j++) {
|
||||
if (inst->noiseEstDensity[offset + i + j] > 512) {
|
||||
// Get values for deltaBuff by shifting intead of dividing.
|
||||
int factor = WebRtcSpl_NormW16(inst->noiseEstDensity[offset + i + j]);
|
||||
deltaBuff[j] = (int16_t)(FACTOR_Q16 >> (14 - factor));
|
||||
}
|
||||
}
|
||||
|
||||
// Update log quantile estimate
|
||||
|
||||
// tmp16 = (int16_t)((delta * countDiv) >> 14);
|
||||
tmp32x4 = vmull_s16(vld1_s16(&deltaBuff[0]), countDiv_16x4);
|
||||
tmp16x4_1 = vshrn_n_s32(tmp32x4, 14);
|
||||
tmp32x4 = vmull_s16(vld1_s16(&deltaBuff[4]), countDiv_16x4);
|
||||
tmp16x4_0 = vshrn_n_s32(tmp32x4, 14);
|
||||
tmp16x8_0 = vcombine_s16(tmp16x4_1, tmp16x4_0); // Keep for several lines.
|
||||
|
||||
// prepare for the "if" branch
|
||||
// tmp16 += 2;
|
||||
// tmp16_1 = (Word16)(tmp16>>2);
|
||||
tmp16x8_1 = vrshrq_n_s16(tmp16x8_0, 2);
|
||||
|
||||
// inst->noiseEstLogQuantile[offset+i] + tmp16_1;
|
||||
tmp16x8_2 = vld1q_s16(&inst->noiseEstLogQuantile[offset + i]); // Keep
|
||||
tmp16x8_1 = vaddq_s16(tmp16x8_2, tmp16x8_1); // Keep for several lines
|
||||
|
||||
// Prepare for the "else" branch
|
||||
// tmp16 += 1;
|
||||
// tmp16_1 = (Word16)(tmp16>>1);
|
||||
tmp16x8_0 = vrshrq_n_s16(tmp16x8_0, 1);
|
||||
|
||||
// tmp16_2 = (int16_t)((tmp16_1 * 3) >> 1);
|
||||
tmp32x4 = vmull_s16(vget_low_s16(tmp16x8_0), Q3_16x4);
|
||||
tmp16x4_1 = vshrn_n_s32(tmp32x4, 1);
|
||||
|
||||
// tmp16_2 = (int16_t)((tmp16_1 * 3) >> 1);
|
||||
tmp32x4 = vmull_s16(vget_high_s16(tmp16x8_0), Q3_16x4);
|
||||
tmp16x4_0 = vshrn_n_s32(tmp32x4, 1);
|
||||
|
||||
// inst->noiseEstLogQuantile[offset + i] - tmp16_2;
|
||||
tmp16x8_0 = vcombine_s16(tmp16x4_1, tmp16x4_0); // keep
|
||||
tmp16x8_0 = vsubq_s16(tmp16x8_2, tmp16x8_0);
|
||||
|
||||
// logval is the smallest fixed point representation we can have. Values
|
||||
// below that will correspond to values in the interval [0, 1], which
|
||||
// can't possibly occur.
|
||||
tmp16x8_0 = vmaxq_s16(tmp16x8_0, logval_16x8);
|
||||
|
||||
// Do the if-else branches:
|
||||
tmp16x8_3 = vld1q_s16(&lmagn[i]); // keep for several lines
|
||||
tmp16x8_4 = vcgtq_s16(tmp16x8_3, tmp16x8_2);
|
||||
tmp16x8_2 = vbslq_s16(tmp16x8_4, tmp16x8_1, tmp16x8_0);
|
||||
vst1q_s16(&inst->noiseEstLogQuantile[offset + i], tmp16x8_2);
|
||||
|
||||
// Update density estimate
|
||||
// tmp16_1 + tmp16_2
|
||||
tmp16x8_1 = vld1q_s16(&inst->noiseEstDensity[offset + i]);
|
||||
tmp16x8_0 = vqrdmulhq_s16(tmp16x8_1, countProd_16x8);
|
||||
tmp16x8_0 = vaddq_s16(tmp16x8_0, prod16x8);
|
||||
|
||||
// lmagn[i] - inst->noiseEstLogQuantile[offset + i]
|
||||
tmp16x8_3 = vsubq_s16(tmp16x8_3, tmp16x8_2);
|
||||
tmp16x8_3 = vabsq_s16(tmp16x8_3);
|
||||
tmp16x8_4 = vcgtq_s16(WIDTHQ8_16x8, tmp16x8_3);
|
||||
tmp16x8_1 = vbslq_s16(tmp16x8_4, tmp16x8_0, tmp16x8_1);
|
||||
vst1q_s16(&inst->noiseEstDensity[offset + i], tmp16x8_1);
|
||||
} // End loop over magnitude spectrum
|
||||
|
||||
// Last iteration over magnitude spectrum:
|
||||
// compute delta
|
||||
if (inst->noiseEstDensity[offset + i] > 512) {
|
||||
// Get values for deltaBuff by shifting intead of dividing.
|
||||
int factor = WebRtcSpl_NormW16(inst->noiseEstDensity[offset + i]);
|
||||
delta = (int16_t)(FACTOR_Q16 >> (14 - factor));
|
||||
} else {
|
||||
delta = FACTOR_Q7;
|
||||
if (inst->blockIndex < END_STARTUP_LONG) {
|
||||
// Smaller step size during startup. This prevents from using
|
||||
// unrealistic values causing overflow.
|
||||
delta = FACTOR_Q7_STARTUP;
|
||||
}
|
||||
}
|
||||
// update log quantile estimate
|
||||
tmp16 = (int16_t)((delta * countDiv) >> 14);
|
||||
if (lmagn[i] > inst->noiseEstLogQuantile[offset + i]) {
|
||||
// +=QUANTILE*delta/(inst->counter[s]+1) QUANTILE=0.25, =1 in Q2
|
||||
// CounterDiv=1/(inst->counter[s]+1) in Q15
|
||||
tmp16 += 2;
|
||||
inst->noiseEstLogQuantile[offset + i] += tmp16 / 4;
|
||||
} else {
|
||||
tmp16 += 1;
|
||||
// *(1-QUANTILE), in Q2 QUANTILE=0.25, 1-0.25=0.75=3 in Q2
|
||||
// TODO(bjornv): investigate why we need to truncate twice.
|
||||
tmp16no2 = (int16_t)((tmp16 / 2) * 3 / 2);
|
||||
inst->noiseEstLogQuantile[offset + i] -= tmp16no2;
|
||||
if (inst->noiseEstLogQuantile[offset + i] < logval) {
|
||||
// logval is the smallest fixed point representation we can have.
|
||||
// Values below that will correspond to values in the interval
|
||||
// [0, 1], which can't possibly occur.
|
||||
inst->noiseEstLogQuantile[offset + i] = logval;
|
||||
}
|
||||
}
|
||||
|
||||
// update density estimate
|
||||
if (WEBRTC_SPL_ABS_W16(lmagn[i] - inst->noiseEstLogQuantile[offset + i])
|
||||
< WIDTH_Q8) {
|
||||
tmp16no1 = (int16_t)WEBRTC_SPL_MUL_16_16_RSFT_WITH_ROUND(
|
||||
inst->noiseEstDensity[offset + i], countProd, 15);
|
||||
tmp16no2 = (int16_t)WEBRTC_SPL_MUL_16_16_RSFT_WITH_ROUND(
|
||||
width_factor, countDiv, 15);
|
||||
inst->noiseEstDensity[offset + i] = tmp16no1 + tmp16no2;
|
||||
}
|
||||
|
||||
|
||||
if (counter >= END_STARTUP_LONG) {
|
||||
inst->noiseEstCounter[s] = 0;
|
||||
if (inst->blockIndex >= END_STARTUP_LONG) {
|
||||
UpdateNoiseEstimateNeon(inst, offset);
|
||||
}
|
||||
}
|
||||
inst->noiseEstCounter[s]++;
|
||||
|
||||
} // end loop over simultaneous estimates
|
||||
|
||||
// Sequentially update the noise during startup
|
||||
if (inst->blockIndex < END_STARTUP_LONG) {
|
||||
UpdateNoiseEstimateNeon(inst, offset);
|
||||
}
|
||||
|
||||
for (i = 0; i < inst->magnLen; i++) {
|
||||
noise[i] = (uint32_t)(inst->noiseEstQuantile[i]); // Q(qNoise)
|
||||
}
|
||||
(*q_noise) = (int16_t)inst->qNoise;
|
||||
}
|
||||
|
||||
// Filter the data in the frequency domain, and create spectrum.
|
||||
void WebRtcNsx_PrepareSpectrumNeon(NoiseSuppressionFixedC* inst,
|
||||
int16_t* freq_buf) {
|
||||
RTC_DCHECK_EQ(1, inst->magnLen % 8);
|
||||
RTC_DCHECK_EQ(0, inst->anaLen2 % 16);
|
||||
|
||||
// (1) Filtering.
|
||||
|
||||
// Fixed point C code for the next block is as follows:
|
||||
// for (i = 0; i < inst->magnLen; i++) {
|
||||
// inst->real[i] = (int16_t)((inst->real[i] *
|
||||
// (int16_t)(inst->noiseSupFilter[i])) >> 14); // Q(normData-stages)
|
||||
// inst->imag[i] = (int16_t)((inst->imag[i] *
|
||||
// (int16_t)(inst->noiseSupFilter[i])) >> 14); // Q(normData-stages)
|
||||
// }
|
||||
|
||||
int16_t* preal = &inst->real[0];
|
||||
int16_t* pimag = &inst->imag[0];
|
||||
int16_t* pns_filter = (int16_t*)&inst->noiseSupFilter[0];
|
||||
int16_t* pimag_end = pimag + inst->magnLen - 4;
|
||||
|
||||
while (pimag < pimag_end) {
|
||||
int16x8_t real = vld1q_s16(preal);
|
||||
int16x8_t imag = vld1q_s16(pimag);
|
||||
int16x8_t ns_filter = vld1q_s16(pns_filter);
|
||||
|
||||
int32x4_t tmp_r_0 = vmull_s16(vget_low_s16(real), vget_low_s16(ns_filter));
|
||||
int32x4_t tmp_i_0 = vmull_s16(vget_low_s16(imag), vget_low_s16(ns_filter));
|
||||
int32x4_t tmp_r_1 = vmull_s16(vget_high_s16(real),
|
||||
vget_high_s16(ns_filter));
|
||||
int32x4_t tmp_i_1 = vmull_s16(vget_high_s16(imag),
|
||||
vget_high_s16(ns_filter));
|
||||
|
||||
int16x4_t result_r_0 = vshrn_n_s32(tmp_r_0, 14);
|
||||
int16x4_t result_i_0 = vshrn_n_s32(tmp_i_0, 14);
|
||||
int16x4_t result_r_1 = vshrn_n_s32(tmp_r_1, 14);
|
||||
int16x4_t result_i_1 = vshrn_n_s32(tmp_i_1, 14);
|
||||
|
||||
vst1q_s16(preal, vcombine_s16(result_r_0, result_r_1));
|
||||
vst1q_s16(pimag, vcombine_s16(result_i_0, result_i_1));
|
||||
preal += 8;
|
||||
pimag += 8;
|
||||
pns_filter += 8;
|
||||
}
|
||||
|
||||
// Filter the last element
|
||||
*preal = (int16_t)((*preal * *pns_filter) >> 14);
|
||||
*pimag = (int16_t)((*pimag * *pns_filter) >> 14);
|
||||
|
||||
// (2) Create spectrum.
|
||||
|
||||
// Fixed point C code for the rest of the function is as follows:
|
||||
// freq_buf[0] = inst->real[0];
|
||||
// freq_buf[1] = -inst->imag[0];
|
||||
// for (i = 1, j = 2; i < inst->anaLen2; i += 1, j += 2) {
|
||||
// freq_buf[j] = inst->real[i];
|
||||
// freq_buf[j + 1] = -inst->imag[i];
|
||||
// }
|
||||
// freq_buf[inst->anaLen] = inst->real[inst->anaLen2];
|
||||
// freq_buf[inst->anaLen + 1] = -inst->imag[inst->anaLen2];
|
||||
|
||||
preal = &inst->real[0];
|
||||
pimag = &inst->imag[0];
|
||||
pimag_end = pimag + inst->anaLen2;
|
||||
int16_t * freq_buf_start = freq_buf;
|
||||
while (pimag < pimag_end) {
|
||||
// loop unroll
|
||||
int16x8x2_t real_imag_0;
|
||||
int16x8x2_t real_imag_1;
|
||||
real_imag_0.val[1] = vld1q_s16(pimag);
|
||||
real_imag_0.val[0] = vld1q_s16(preal);
|
||||
preal += 8;
|
||||
pimag += 8;
|
||||
real_imag_1.val[1] = vld1q_s16(pimag);
|
||||
real_imag_1.val[0] = vld1q_s16(preal);
|
||||
preal += 8;
|
||||
pimag += 8;
|
||||
|
||||
real_imag_0.val[1] = vnegq_s16(real_imag_0.val[1]);
|
||||
real_imag_1.val[1] = vnegq_s16(real_imag_1.val[1]);
|
||||
vst2q_s16(freq_buf_start, real_imag_0);
|
||||
freq_buf_start += 16;
|
||||
vst2q_s16(freq_buf_start, real_imag_1);
|
||||
freq_buf_start += 16;
|
||||
}
|
||||
freq_buf[inst->anaLen] = inst->real[inst->anaLen2];
|
||||
freq_buf[inst->anaLen + 1] = -inst->imag[inst->anaLen2];
|
||||
}
|
||||
|
||||
// For the noise supress process, synthesis, read out fully processed segment,
|
||||
// and update synthesis buffer.
|
||||
void WebRtcNsx_SynthesisUpdateNeon(NoiseSuppressionFixedC* inst,
|
||||
int16_t* out_frame,
|
||||
int16_t gain_factor) {
|
||||
RTC_DCHECK_EQ(0, inst->anaLen % 16);
|
||||
RTC_DCHECK_EQ(0, inst->blockLen10ms % 16);
|
||||
|
||||
int16_t* preal_start = inst->real;
|
||||
const int16_t* pwindow = inst->window;
|
||||
int16_t* preal_end = preal_start + inst->anaLen;
|
||||
int16_t* psynthesis_buffer = inst->synthesisBuffer;
|
||||
|
||||
while (preal_start < preal_end) {
|
||||
// Loop unroll.
|
||||
int16x8_t window_0 = vld1q_s16(pwindow);
|
||||
int16x8_t real_0 = vld1q_s16(preal_start);
|
||||
int16x8_t synthesis_buffer_0 = vld1q_s16(psynthesis_buffer);
|
||||
|
||||
int16x8_t window_1 = vld1q_s16(pwindow + 8);
|
||||
int16x8_t real_1 = vld1q_s16(preal_start + 8);
|
||||
int16x8_t synthesis_buffer_1 = vld1q_s16(psynthesis_buffer + 8);
|
||||
|
||||
int32x4_t tmp32a_0_low = vmull_s16(vget_low_s16(real_0),
|
||||
vget_low_s16(window_0));
|
||||
int32x4_t tmp32a_0_high = vmull_s16(vget_high_s16(real_0),
|
||||
vget_high_s16(window_0));
|
||||
|
||||
int32x4_t tmp32a_1_low = vmull_s16(vget_low_s16(real_1),
|
||||
vget_low_s16(window_1));
|
||||
int32x4_t tmp32a_1_high = vmull_s16(vget_high_s16(real_1),
|
||||
vget_high_s16(window_1));
|
||||
|
||||
int16x4_t tmp16a_0_low = vqrshrn_n_s32(tmp32a_0_low, 14);
|
||||
int16x4_t tmp16a_0_high = vqrshrn_n_s32(tmp32a_0_high, 14);
|
||||
|
||||
int16x4_t tmp16a_1_low = vqrshrn_n_s32(tmp32a_1_low, 14);
|
||||
int16x4_t tmp16a_1_high = vqrshrn_n_s32(tmp32a_1_high, 14);
|
||||
|
||||
int32x4_t tmp32b_0_low = vmull_n_s16(tmp16a_0_low, gain_factor);
|
||||
int32x4_t tmp32b_0_high = vmull_n_s16(tmp16a_0_high, gain_factor);
|
||||
|
||||
int32x4_t tmp32b_1_low = vmull_n_s16(tmp16a_1_low, gain_factor);
|
||||
int32x4_t tmp32b_1_high = vmull_n_s16(tmp16a_1_high, gain_factor);
|
||||
|
||||
int16x4_t tmp16b_0_low = vqrshrn_n_s32(tmp32b_0_low, 13);
|
||||
int16x4_t tmp16b_0_high = vqrshrn_n_s32(tmp32b_0_high, 13);
|
||||
|
||||
int16x4_t tmp16b_1_low = vqrshrn_n_s32(tmp32b_1_low, 13);
|
||||
int16x4_t tmp16b_1_high = vqrshrn_n_s32(tmp32b_1_high, 13);
|
||||
|
||||
synthesis_buffer_0 = vqaddq_s16(vcombine_s16(tmp16b_0_low, tmp16b_0_high),
|
||||
synthesis_buffer_0);
|
||||
synthesis_buffer_1 = vqaddq_s16(vcombine_s16(tmp16b_1_low, tmp16b_1_high),
|
||||
synthesis_buffer_1);
|
||||
vst1q_s16(psynthesis_buffer, synthesis_buffer_0);
|
||||
vst1q_s16(psynthesis_buffer + 8, synthesis_buffer_1);
|
||||
|
||||
pwindow += 16;
|
||||
preal_start += 16;
|
||||
psynthesis_buffer += 16;
|
||||
}
|
||||
|
||||
// Read out fully processed segment.
|
||||
int16_t * p_start = inst->synthesisBuffer;
|
||||
int16_t * p_end = inst->synthesisBuffer + inst->blockLen10ms;
|
||||
int16_t * p_frame = out_frame;
|
||||
while (p_start < p_end) {
|
||||
int16x8_t frame_0 = vld1q_s16(p_start);
|
||||
vst1q_s16(p_frame, frame_0);
|
||||
p_start += 8;
|
||||
p_frame += 8;
|
||||
}
|
||||
|
||||
// Update synthesis buffer.
|
||||
int16_t* p_start_src = inst->synthesisBuffer + inst->blockLen10ms;
|
||||
int16_t* p_end_src = inst->synthesisBuffer + inst->anaLen;
|
||||
int16_t* p_start_dst = inst->synthesisBuffer;
|
||||
while (p_start_src < p_end_src) {
|
||||
int16x8_t frame = vld1q_s16(p_start_src);
|
||||
vst1q_s16(p_start_dst, frame);
|
||||
p_start_src += 8;
|
||||
p_start_dst += 8;
|
||||
}
|
||||
|
||||
p_start = inst->synthesisBuffer + inst->anaLen - inst->blockLen10ms;
|
||||
p_end = p_start + inst->blockLen10ms;
|
||||
int16x8_t zero = vdupq_n_s16(0);
|
||||
for (;p_start < p_end; p_start += 8) {
|
||||
vst1q_s16(p_start, zero);
|
||||
}
|
||||
}
|
||||
|
||||
// Update analysis buffer for lower band, and window data before FFT.
|
||||
void WebRtcNsx_AnalysisUpdateNeon(NoiseSuppressionFixedC* inst,
|
||||
int16_t* out,
|
||||
int16_t* new_speech) {
|
||||
RTC_DCHECK_EQ(0, inst->blockLen10ms % 16);
|
||||
RTC_DCHECK_EQ(0, inst->anaLen % 16);
|
||||
|
||||
// For lower band update analysis buffer.
|
||||
// memcpy(inst->analysisBuffer, inst->analysisBuffer + inst->blockLen10ms,
|
||||
// (inst->anaLen - inst->blockLen10ms) * sizeof(*inst->analysisBuffer));
|
||||
int16_t* p_start_src = inst->analysisBuffer + inst->blockLen10ms;
|
||||
int16_t* p_end_src = inst->analysisBuffer + inst->anaLen;
|
||||
int16_t* p_start_dst = inst->analysisBuffer;
|
||||
while (p_start_src < p_end_src) {
|
||||
int16x8_t frame = vld1q_s16(p_start_src);
|
||||
vst1q_s16(p_start_dst, frame);
|
||||
|
||||
p_start_src += 8;
|
||||
p_start_dst += 8;
|
||||
}
|
||||
|
||||
// memcpy(inst->analysisBuffer + inst->anaLen - inst->blockLen10ms,
|
||||
// new_speech, inst->blockLen10ms * sizeof(*inst->analysisBuffer));
|
||||
p_start_src = new_speech;
|
||||
p_end_src = new_speech + inst->blockLen10ms;
|
||||
p_start_dst = inst->analysisBuffer + inst->anaLen - inst->blockLen10ms;
|
||||
while (p_start_src < p_end_src) {
|
||||
int16x8_t frame = vld1q_s16(p_start_src);
|
||||
vst1q_s16(p_start_dst, frame);
|
||||
|
||||
p_start_src += 8;
|
||||
p_start_dst += 8;
|
||||
}
|
||||
|
||||
// Window data before FFT.
|
||||
int16_t* p_start_window = (int16_t*) inst->window;
|
||||
int16_t* p_start_buffer = inst->analysisBuffer;
|
||||
int16_t* p_end_buffer = inst->analysisBuffer + inst->anaLen;
|
||||
int16_t* p_start_out = out;
|
||||
|
||||
// Load the first element to reduce pipeline bubble.
|
||||
int16x8_t window = vld1q_s16(p_start_window);
|
||||
int16x8_t buffer = vld1q_s16(p_start_buffer);
|
||||
p_start_window += 8;
|
||||
p_start_buffer += 8;
|
||||
|
||||
while (p_start_buffer < p_end_buffer) {
|
||||
// Unroll loop.
|
||||
int32x4_t tmp32_low = vmull_s16(vget_low_s16(window), vget_low_s16(buffer));
|
||||
int32x4_t tmp32_high = vmull_s16(vget_high_s16(window),
|
||||
vget_high_s16(buffer));
|
||||
window = vld1q_s16(p_start_window);
|
||||
buffer = vld1q_s16(p_start_buffer);
|
||||
|
||||
int16x4_t result_low = vrshrn_n_s32(tmp32_low, 14);
|
||||
int16x4_t result_high = vrshrn_n_s32(tmp32_high, 14);
|
||||
vst1q_s16(p_start_out, vcombine_s16(result_low, result_high));
|
||||
|
||||
p_start_buffer += 8;
|
||||
p_start_window += 8;
|
||||
p_start_out += 8;
|
||||
}
|
||||
int32x4_t tmp32_low = vmull_s16(vget_low_s16(window), vget_low_s16(buffer));
|
||||
int32x4_t tmp32_high = vmull_s16(vget_high_s16(window),
|
||||
vget_high_s16(buffer));
|
||||
|
||||
int16x4_t result_low = vrshrn_n_s32(tmp32_low, 14);
|
||||
int16x4_t result_high = vrshrn_n_s32(tmp32_high, 14);
|
||||
vst1q_s16(p_start_out, vcombine_s16(result_low, result_high));
|
||||
}
|
||||
64
modules/audio_processing/ns/nsx_defines.h
Normal file
64
modules/audio_processing/ns/nsx_defines.h
Normal file
@ -0,0 +1,64 @@
|
||||
/*
|
||||
* Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
|
||||
*
|
||||
* Use of this source code is governed by a BSD-style license
|
||||
* that can be found in the LICENSE file in the root of the source
|
||||
* tree. An additional intellectual property rights grant can be found
|
||||
* in the file PATENTS. All contributing project authors may
|
||||
* be found in the AUTHORS file in the root of the source tree.
|
||||
*/
|
||||
|
||||
#ifndef WEBRTC_MODULES_AUDIO_PROCESSING_NS_MAIN_SOURCE_NSX_DEFINES_H_
|
||||
#define WEBRTC_MODULES_AUDIO_PROCESSING_NS_MAIN_SOURCE_NSX_DEFINES_H_
|
||||
|
||||
#define ANAL_BLOCKL_MAX 256 /* Max analysis block length */
|
||||
#define HALF_ANAL_BLOCKL 129 /* Half max analysis block length + 1 */
|
||||
#define NUM_HIGH_BANDS_MAX 2 /* Max number of high bands */
|
||||
#define SIMULT 3
|
||||
#define END_STARTUP_LONG 200
|
||||
#define END_STARTUP_SHORT 50
|
||||
#define FACTOR_Q16 2621440 /* 40 in Q16 */
|
||||
#define FACTOR_Q7 5120 /* 40 in Q7 */
|
||||
#define FACTOR_Q7_STARTUP 1024 /* 8 in Q7 */
|
||||
#define WIDTH_Q8 3 /* 0.01 in Q8 (or 25 ) */
|
||||
|
||||
/* PARAMETERS FOR NEW METHOD */
|
||||
#define DD_PR_SNR_Q11 2007 /* ~= Q11(0.98) DD update of prior SNR */
|
||||
#define ONE_MINUS_DD_PR_SNR_Q11 41 /* DD update of prior SNR */
|
||||
#define SPECT_FLAT_TAVG_Q14 4915 /* (0.30) tavg parameter for spectral flatness measure */
|
||||
#define SPECT_DIFF_TAVG_Q8 77 /* (0.30) tavg parameter for spectral flatness measure */
|
||||
#define PRIOR_UPDATE_Q14 1638 /* Q14(0.1) Update parameter of prior model */
|
||||
#define NOISE_UPDATE_Q8 26 /* 26 ~= Q8(0.1) Update parameter for noise */
|
||||
|
||||
/* Probability threshold for noise state in speech/noise likelihood. */
|
||||
#define ONE_MINUS_PROB_RANGE_Q8 205 /* 205 ~= Q8(0.8) */
|
||||
#define HIST_PAR_EST 1000 /* Histogram size for estimation of parameters */
|
||||
|
||||
/* FEATURE EXTRACTION CONFIG */
|
||||
/* Bin size of histogram */
|
||||
#define BIN_SIZE_LRT 10
|
||||
/* Scale parameters: multiply dominant peaks of the histograms by scale factor to obtain. */
|
||||
/* Thresholds for prior model */
|
||||
#define FACTOR_1_LRT_DIFF 6 /* For LRT and spectral difference (5 times bigger) */
|
||||
/* For spectral_flatness: used when noise is flatter than speech (10 times bigger). */
|
||||
#define FACTOR_2_FLAT_Q10 922
|
||||
/* Peak limit for spectral flatness (varies between 0 and 1) */
|
||||
#define THRES_PEAK_FLAT 24 /* * 2 * BIN_SIZE_FLAT_FX */
|
||||
/* Limit on spacing of two highest peaks in histogram: spacing determined by bin size. */
|
||||
#define LIM_PEAK_SPACE_FLAT_DIFF 4 /* * 2 * BIN_SIZE_DIFF_FX */
|
||||
/* Limit on relevance of second peak */
|
||||
#define LIM_PEAK_WEIGHT_FLAT_DIFF 2
|
||||
#define THRES_FLUCT_LRT 10240 /* = 20 * inst->modelUpdate; fluctuation limit of LRT feat. */
|
||||
/* Limit on the max and min values for the feature thresholds */
|
||||
#define MAX_FLAT_Q10 38912 /* * 2 * BIN_SIZE_FLAT_FX */
|
||||
#define MIN_FLAT_Q10 4096 /* * 2 * BIN_SIZE_FLAT_FX */
|
||||
#define MAX_DIFF 100 /* * 2 * BIN_SIZE_DIFF_FX */
|
||||
#define MIN_DIFF 16 /* * 2 * BIN_SIZE_DIFF_FX */
|
||||
/* Criteria of weight of histogram peak to accept/reject feature */
|
||||
#define THRES_WEIGHT_FLAT_DIFF 154 /*(int)(0.3*(inst->modelUpdate)) for flatness and difference */
|
||||
|
||||
#define STAT_UPDATES 9 /* Update every 512 = 1 << 9 block */
|
||||
#define ONE_MINUS_GAMMA_PAUSE_Q8 13 /* ~= Q8(0.05) Update for conservative noise estimate */
|
||||
#define GAMMA_NOISE_TRANS_AND_SPEECH_Q8 3 /* ~= Q8(0.01) Update for transition and noise region */
|
||||
|
||||
#endif /* WEBRTC_MODULES_AUDIO_PROCESSING_NS_MAIN_SOURCE_NSX_DEFINES_H_ */
|
||||
574
modules/audio_processing/ns/windows_private.h
Normal file
574
modules/audio_processing/ns/windows_private.h
Normal file
@ -0,0 +1,574 @@
|
||||
/*
|
||||
* Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
|
||||
*
|
||||
* Use of this source code is governed by a BSD-style license
|
||||
* that can be found in the LICENSE file in the root of the source
|
||||
* tree. An additional intellectual property rights grant can be found
|
||||
* in the file PATENTS. All contributing project authors may
|
||||
* be found in the AUTHORS file in the root of the source tree.
|
||||
*/
|
||||
|
||||
#ifndef WEBRTC_MODULES_AUDIO_PROCESSING_NS_MAIN_SOURCE_WINDOWS_PRIVATE_H_
|
||||
#define WEBRTC_MODULES_AUDIO_PROCESSING_NS_MAIN_SOURCE_WINDOWS_PRIVATE_H_
|
||||
|
||||
// Hanning window for 4ms 16kHz
|
||||
static const float kHanning64w128[128] = {
|
||||
0.00000000000000f, 0.02454122852291f, 0.04906767432742f,
|
||||
0.07356456359967f, 0.09801714032956f, 0.12241067519922f,
|
||||
0.14673047445536f, 0.17096188876030f, 0.19509032201613f,
|
||||
0.21910124015687f, 0.24298017990326f, 0.26671275747490f,
|
||||
0.29028467725446f, 0.31368174039889f, 0.33688985339222f,
|
||||
0.35989503653499f, 0.38268343236509f, 0.40524131400499f,
|
||||
0.42755509343028f, 0.44961132965461f, 0.47139673682600f,
|
||||
0.49289819222978f, 0.51410274419322f, 0.53499761988710f,
|
||||
0.55557023301960f, 0.57580819141785f, 0.59569930449243f,
|
||||
0.61523159058063f, 0.63439328416365f, 0.65317284295378f,
|
||||
0.67155895484702f, 0.68954054473707f, 0.70710678118655f,
|
||||
0.72424708295147f, 0.74095112535496f, 0.75720884650648f,
|
||||
0.77301045336274f, 0.78834642762661f, 0.80320753148064f,
|
||||
0.81758481315158f, 0.83146961230255f, 0.84485356524971f,
|
||||
0.85772861000027f, 0.87008699110871f, 0.88192126434835f,
|
||||
0.89322430119552f, 0.90398929312344f, 0.91420975570353f,
|
||||
0.92387953251129f, 0.93299279883474f, 0.94154406518302f,
|
||||
0.94952818059304f, 0.95694033573221f, 0.96377606579544f,
|
||||
0.97003125319454f, 0.97570213003853f, 0.98078528040323f,
|
||||
0.98527764238894f, 0.98917650996478f, 0.99247953459871f,
|
||||
0.99518472667220f, 0.99729045667869f, 0.99879545620517f,
|
||||
0.99969881869620f, 1.00000000000000f,
|
||||
0.99969881869620f, 0.99879545620517f, 0.99729045667869f,
|
||||
0.99518472667220f, 0.99247953459871f, 0.98917650996478f,
|
||||
0.98527764238894f, 0.98078528040323f, 0.97570213003853f,
|
||||
0.97003125319454f, 0.96377606579544f, 0.95694033573221f,
|
||||
0.94952818059304f, 0.94154406518302f, 0.93299279883474f,
|
||||
0.92387953251129f, 0.91420975570353f, 0.90398929312344f,
|
||||
0.89322430119552f, 0.88192126434835f, 0.87008699110871f,
|
||||
0.85772861000027f, 0.84485356524971f, 0.83146961230255f,
|
||||
0.81758481315158f, 0.80320753148064f, 0.78834642762661f,
|
||||
0.77301045336274f, 0.75720884650648f, 0.74095112535496f,
|
||||
0.72424708295147f, 0.70710678118655f, 0.68954054473707f,
|
||||
0.67155895484702f, 0.65317284295378f, 0.63439328416365f,
|
||||
0.61523159058063f, 0.59569930449243f, 0.57580819141785f,
|
||||
0.55557023301960f, 0.53499761988710f, 0.51410274419322f,
|
||||
0.49289819222978f, 0.47139673682600f, 0.44961132965461f,
|
||||
0.42755509343028f, 0.40524131400499f, 0.38268343236509f,
|
||||
0.35989503653499f, 0.33688985339222f, 0.31368174039889f,
|
||||
0.29028467725446f, 0.26671275747490f, 0.24298017990326f,
|
||||
0.21910124015687f, 0.19509032201613f, 0.17096188876030f,
|
||||
0.14673047445536f, 0.12241067519922f, 0.09801714032956f,
|
||||
0.07356456359967f, 0.04906767432742f, 0.02454122852291f
|
||||
};
|
||||
|
||||
|
||||
|
||||
// hybrib Hanning & flat window
|
||||
static const float kBlocks80w128[128] = {
|
||||
(float)0.00000000, (float)0.03271908, (float)0.06540313, (float)0.09801714, (float)0.13052619,
|
||||
(float)0.16289547, (float)0.19509032, (float)0.22707626, (float)0.25881905, (float)0.29028468,
|
||||
(float)0.32143947, (float)0.35225005, (float)0.38268343, (float)0.41270703, (float)0.44228869,
|
||||
(float)0.47139674, (float)0.50000000, (float)0.52806785, (float)0.55557023, (float)0.58247770,
|
||||
(float)0.60876143, (float)0.63439328, (float)0.65934582, (float)0.68359230, (float)0.70710678,
|
||||
(float)0.72986407, (float)0.75183981, (float)0.77301045, (float)0.79335334, (float)0.81284668,
|
||||
(float)0.83146961, (float)0.84920218, (float)0.86602540, (float)0.88192126, (float)0.89687274,
|
||||
(float)0.91086382, (float)0.92387953, (float)0.93590593, (float)0.94693013, (float)0.95694034,
|
||||
(float)0.96592583, (float)0.97387698, (float)0.98078528, (float)0.98664333, (float)0.99144486,
|
||||
(float)0.99518473, (float)0.99785892, (float)0.99946459, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)0.99946459, (float)0.99785892, (float)0.99518473, (float)0.99144486,
|
||||
(float)0.98664333, (float)0.98078528, (float)0.97387698, (float)0.96592583, (float)0.95694034,
|
||||
(float)0.94693013, (float)0.93590593, (float)0.92387953, (float)0.91086382, (float)0.89687274,
|
||||
(float)0.88192126, (float)0.86602540, (float)0.84920218, (float)0.83146961, (float)0.81284668,
|
||||
(float)0.79335334, (float)0.77301045, (float)0.75183981, (float)0.72986407, (float)0.70710678,
|
||||
(float)0.68359230, (float)0.65934582, (float)0.63439328, (float)0.60876143, (float)0.58247770,
|
||||
(float)0.55557023, (float)0.52806785, (float)0.50000000, (float)0.47139674, (float)0.44228869,
|
||||
(float)0.41270703, (float)0.38268343, (float)0.35225005, (float)0.32143947, (float)0.29028468,
|
||||
(float)0.25881905, (float)0.22707626, (float)0.19509032, (float)0.16289547, (float)0.13052619,
|
||||
(float)0.09801714, (float)0.06540313, (float)0.03271908
|
||||
};
|
||||
|
||||
// hybrib Hanning & flat window
|
||||
static const float kBlocks160w256[256] = {
|
||||
(float)0.00000000, (float)0.01636173, (float)0.03271908, (float)0.04906767, (float)0.06540313,
|
||||
(float)0.08172107, (float)0.09801714, (float)0.11428696, (float)0.13052619, (float)0.14673047,
|
||||
(float)0.16289547, (float)0.17901686, (float)0.19509032, (float)0.21111155, (float)0.22707626,
|
||||
(float)0.24298018, (float)0.25881905, (float)0.27458862, (float)0.29028468, (float)0.30590302,
|
||||
(float)0.32143947, (float)0.33688985, (float)0.35225005, (float)0.36751594, (float)0.38268343,
|
||||
(float)0.39774847, (float)0.41270703, (float)0.42755509, (float)0.44228869, (float)0.45690388,
|
||||
(float)0.47139674, (float)0.48576339, (float)0.50000000, (float)0.51410274, (float)0.52806785,
|
||||
(float)0.54189158, (float)0.55557023, (float)0.56910015, (float)0.58247770, (float)0.59569930,
|
||||
(float)0.60876143, (float)0.62166057, (float)0.63439328, (float)0.64695615, (float)0.65934582,
|
||||
(float)0.67155895, (float)0.68359230, (float)0.69544264, (float)0.70710678, (float)0.71858162,
|
||||
(float)0.72986407, (float)0.74095113, (float)0.75183981, (float)0.76252720, (float)0.77301045,
|
||||
(float)0.78328675, (float)0.79335334, (float)0.80320753, (float)0.81284668, (float)0.82226822,
|
||||
(float)0.83146961, (float)0.84044840, (float)0.84920218, (float)0.85772861, (float)0.86602540,
|
||||
(float)0.87409034, (float)0.88192126, (float)0.88951608, (float)0.89687274, (float)0.90398929,
|
||||
(float)0.91086382, (float)0.91749450, (float)0.92387953, (float)0.93001722, (float)0.93590593,
|
||||
(float)0.94154407, (float)0.94693013, (float)0.95206268, (float)0.95694034, (float)0.96156180,
|
||||
(float)0.96592583, (float)0.97003125, (float)0.97387698, (float)0.97746197, (float)0.98078528,
|
||||
(float)0.98384601, (float)0.98664333, (float)0.98917651, (float)0.99144486, (float)0.99344778,
|
||||
(float)0.99518473, (float)0.99665524, (float)0.99785892, (float)0.99879546, (float)0.99946459,
|
||||
(float)0.99986614, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)0.99986614, (float)0.99946459, (float)0.99879546, (float)0.99785892,
|
||||
(float)0.99665524, (float)0.99518473, (float)0.99344778, (float)0.99144486, (float)0.98917651,
|
||||
(float)0.98664333, (float)0.98384601, (float)0.98078528, (float)0.97746197, (float)0.97387698,
|
||||
(float)0.97003125, (float)0.96592583, (float)0.96156180, (float)0.95694034, (float)0.95206268,
|
||||
(float)0.94693013, (float)0.94154407, (float)0.93590593, (float)0.93001722, (float)0.92387953,
|
||||
(float)0.91749450, (float)0.91086382, (float)0.90398929, (float)0.89687274, (float)0.88951608,
|
||||
(float)0.88192126, (float)0.87409034, (float)0.86602540, (float)0.85772861, (float)0.84920218,
|
||||
(float)0.84044840, (float)0.83146961, (float)0.82226822, (float)0.81284668, (float)0.80320753,
|
||||
(float)0.79335334, (float)0.78328675, (float)0.77301045, (float)0.76252720, (float)0.75183981,
|
||||
(float)0.74095113, (float)0.72986407, (float)0.71858162, (float)0.70710678, (float)0.69544264,
|
||||
(float)0.68359230, (float)0.67155895, (float)0.65934582, (float)0.64695615, (float)0.63439328,
|
||||
(float)0.62166057, (float)0.60876143, (float)0.59569930, (float)0.58247770, (float)0.56910015,
|
||||
(float)0.55557023, (float)0.54189158, (float)0.52806785, (float)0.51410274, (float)0.50000000,
|
||||
(float)0.48576339, (float)0.47139674, (float)0.45690388, (float)0.44228869, (float)0.42755509,
|
||||
(float)0.41270703, (float)0.39774847, (float)0.38268343, (float)0.36751594, (float)0.35225005,
|
||||
(float)0.33688985, (float)0.32143947, (float)0.30590302, (float)0.29028468, (float)0.27458862,
|
||||
(float)0.25881905, (float)0.24298018, (float)0.22707626, (float)0.21111155, (float)0.19509032,
|
||||
(float)0.17901686, (float)0.16289547, (float)0.14673047, (float)0.13052619, (float)0.11428696,
|
||||
(float)0.09801714, (float)0.08172107, (float)0.06540313, (float)0.04906767, (float)0.03271908,
|
||||
(float)0.01636173
|
||||
};
|
||||
|
||||
// hybrib Hanning & flat window: for 20ms
|
||||
static const float kBlocks320w512[512] = {
|
||||
(float)0.00000000, (float)0.00818114, (float)0.01636173, (float)0.02454123, (float)0.03271908,
|
||||
(float)0.04089475, (float)0.04906767, (float)0.05723732, (float)0.06540313, (float)0.07356456,
|
||||
(float)0.08172107, (float)0.08987211, (float)0.09801714, (float)0.10615561, (float)0.11428696,
|
||||
(float)0.12241068, (float)0.13052619, (float)0.13863297, (float)0.14673047, (float)0.15481816,
|
||||
(float)0.16289547, (float)0.17096189, (float)0.17901686, (float)0.18705985, (float)0.19509032,
|
||||
(float)0.20310773, (float)0.21111155, (float)0.21910124, (float)0.22707626, (float)0.23503609,
|
||||
(float)0.24298018, (float)0.25090801, (float)0.25881905, (float)0.26671276, (float)0.27458862,
|
||||
(float)0.28244610, (float)0.29028468, (float)0.29810383, (float)0.30590302, (float)0.31368174,
|
||||
(float)0.32143947, (float)0.32917568, (float)0.33688985, (float)0.34458148, (float)0.35225005,
|
||||
(float)0.35989504, (float)0.36751594, (float)0.37511224, (float)0.38268343, (float)0.39022901,
|
||||
(float)0.39774847, (float)0.40524131, (float)0.41270703, (float)0.42014512, (float)0.42755509,
|
||||
(float)0.43493645, (float)0.44228869, (float)0.44961133, (float)0.45690388, (float)0.46416584,
|
||||
(float)0.47139674, (float)0.47859608, (float)0.48576339, (float)0.49289819, (float)0.50000000,
|
||||
(float)0.50706834, (float)0.51410274, (float)0.52110274, (float)0.52806785, (float)0.53499762,
|
||||
(float)0.54189158, (float)0.54874927, (float)0.55557023, (float)0.56235401, (float)0.56910015,
|
||||
(float)0.57580819, (float)0.58247770, (float)0.58910822, (float)0.59569930, (float)0.60225052,
|
||||
(float)0.60876143, (float)0.61523159, (float)0.62166057, (float)0.62804795, (float)0.63439328,
|
||||
(float)0.64069616, (float)0.64695615, (float)0.65317284, (float)0.65934582, (float)0.66547466,
|
||||
(float)0.67155895, (float)0.67759830, (float)0.68359230, (float)0.68954054, (float)0.69544264,
|
||||
(float)0.70129818, (float)0.70710678, (float)0.71286806, (float)0.71858162, (float)0.72424708,
|
||||
(float)0.72986407, (float)0.73543221, (float)0.74095113, (float)0.74642045, (float)0.75183981,
|
||||
(float)0.75720885, (float)0.76252720, (float)0.76779452, (float)0.77301045, (float)0.77817464,
|
||||
(float)0.78328675, (float)0.78834643, (float)0.79335334, (float)0.79830715, (float)0.80320753,
|
||||
(float)0.80805415, (float)0.81284668, (float)0.81758481, (float)0.82226822, (float)0.82689659,
|
||||
(float)0.83146961, (float)0.83598698, (float)0.84044840, (float)0.84485357, (float)0.84920218,
|
||||
(float)0.85349396, (float)0.85772861, (float)0.86190585, (float)0.86602540, (float)0.87008699,
|
||||
(float)0.87409034, (float)0.87803519, (float)0.88192126, (float)0.88574831, (float)0.88951608,
|
||||
(float)0.89322430, (float)0.89687274, (float)0.90046115, (float)0.90398929, (float)0.90745693,
|
||||
(float)0.91086382, (float)0.91420976, (float)0.91749450, (float)0.92071783, (float)0.92387953,
|
||||
(float)0.92697940, (float)0.93001722, (float)0.93299280, (float)0.93590593, (float)0.93875641,
|
||||
(float)0.94154407, (float)0.94426870, (float)0.94693013, (float)0.94952818, (float)0.95206268,
|
||||
(float)0.95453345, (float)0.95694034, (float)0.95928317, (float)0.96156180, (float)0.96377607,
|
||||
(float)0.96592583, (float)0.96801094, (float)0.97003125, (float)0.97198664, (float)0.97387698,
|
||||
(float)0.97570213, (float)0.97746197, (float)0.97915640, (float)0.98078528, (float)0.98234852,
|
||||
(float)0.98384601, (float)0.98527764, (float)0.98664333, (float)0.98794298, (float)0.98917651,
|
||||
(float)0.99034383, (float)0.99144486, (float)0.99247953, (float)0.99344778, (float)0.99434953,
|
||||
(float)0.99518473, (float)0.99595331, (float)0.99665524, (float)0.99729046, (float)0.99785892,
|
||||
(float)0.99836060, (float)0.99879546, (float)0.99916346, (float)0.99946459, (float)0.99969882,
|
||||
(float)0.99986614, (float)0.99996653, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000, (float)1.00000000,
|
||||
(float)1.00000000, (float)0.99996653, (float)0.99986614, (float)0.99969882, (float)0.99946459,
|
||||
(float)0.99916346, (float)0.99879546, (float)0.99836060, (float)0.99785892, (float)0.99729046,
|
||||
(float)0.99665524, (float)0.99595331, (float)0.99518473, (float)0.99434953, (float)0.99344778,
|
||||
(float)0.99247953, (float)0.99144486, (float)0.99034383, (float)0.98917651, (float)0.98794298,
|
||||
(float)0.98664333, (float)0.98527764, (float)0.98384601, (float)0.98234852, (float)0.98078528,
|
||||
(float)0.97915640, (float)0.97746197, (float)0.97570213, (float)0.97387698, (float)0.97198664,
|
||||
(float)0.97003125, (float)0.96801094, (float)0.96592583, (float)0.96377607, (float)0.96156180,
|
||||
(float)0.95928317, (float)0.95694034, (float)0.95453345, (float)0.95206268, (float)0.94952818,
|
||||
(float)0.94693013, (float)0.94426870, (float)0.94154407, (float)0.93875641, (float)0.93590593,
|
||||
(float)0.93299280, (float)0.93001722, (float)0.92697940, (float)0.92387953, (float)0.92071783,
|
||||
(float)0.91749450, (float)0.91420976, (float)0.91086382, (float)0.90745693, (float)0.90398929,
|
||||
(float)0.90046115, (float)0.89687274, (float)0.89322430, (float)0.88951608, (float)0.88574831,
|
||||
(float)0.88192126, (float)0.87803519, (float)0.87409034, (float)0.87008699, (float)0.86602540,
|
||||
(float)0.86190585, (float)0.85772861, (float)0.85349396, (float)0.84920218, (float)0.84485357,
|
||||
(float)0.84044840, (float)0.83598698, (float)0.83146961, (float)0.82689659, (float)0.82226822,
|
||||
(float)0.81758481, (float)0.81284668, (float)0.80805415, (float)0.80320753, (float)0.79830715,
|
||||
(float)0.79335334, (float)0.78834643, (float)0.78328675, (float)0.77817464, (float)0.77301045,
|
||||
(float)0.76779452, (float)0.76252720, (float)0.75720885, (float)0.75183981, (float)0.74642045,
|
||||
(float)0.74095113, (float)0.73543221, (float)0.72986407, (float)0.72424708, (float)0.71858162,
|
||||
(float)0.71286806, (float)0.70710678, (float)0.70129818, (float)0.69544264, (float)0.68954054,
|
||||
(float)0.68359230, (float)0.67759830, (float)0.67155895, (float)0.66547466, (float)0.65934582,
|
||||
(float)0.65317284, (float)0.64695615, (float)0.64069616, (float)0.63439328, (float)0.62804795,
|
||||
(float)0.62166057, (float)0.61523159, (float)0.60876143, (float)0.60225052, (float)0.59569930,
|
||||
(float)0.58910822, (float)0.58247770, (float)0.57580819, (float)0.56910015, (float)0.56235401,
|
||||
(float)0.55557023, (float)0.54874927, (float)0.54189158, (float)0.53499762, (float)0.52806785,
|
||||
(float)0.52110274, (float)0.51410274, (float)0.50706834, (float)0.50000000, (float)0.49289819,
|
||||
(float)0.48576339, (float)0.47859608, (float)0.47139674, (float)0.46416584, (float)0.45690388,
|
||||
(float)0.44961133, (float)0.44228869, (float)0.43493645, (float)0.42755509, (float)0.42014512,
|
||||
(float)0.41270703, (float)0.40524131, (float)0.39774847, (float)0.39022901, (float)0.38268343,
|
||||
(float)0.37511224, (float)0.36751594, (float)0.35989504, (float)0.35225005, (float)0.34458148,
|
||||
(float)0.33688985, (float)0.32917568, (float)0.32143947, (float)0.31368174, (float)0.30590302,
|
||||
(float)0.29810383, (float)0.29028468, (float)0.28244610, (float)0.27458862, (float)0.26671276,
|
||||
(float)0.25881905, (float)0.25090801, (float)0.24298018, (float)0.23503609, (float)0.22707626,
|
||||
(float)0.21910124, (float)0.21111155, (float)0.20310773, (float)0.19509032, (float)0.18705985,
|
||||
(float)0.17901686, (float)0.17096189, (float)0.16289547, (float)0.15481816, (float)0.14673047,
|
||||
(float)0.13863297, (float)0.13052619, (float)0.12241068, (float)0.11428696, (float)0.10615561,
|
||||
(float)0.09801714, (float)0.08987211, (float)0.08172107, (float)0.07356456, (float)0.06540313,
|
||||
(float)0.05723732, (float)0.04906767, (float)0.04089475, (float)0.03271908, (float)0.02454123,
|
||||
(float)0.01636173, (float)0.00818114
|
||||
};
|
||||
|
||||
|
||||
// Hanning window: for 15ms at 16kHz with symmetric zeros
|
||||
static const float kBlocks240w512[512] = {
|
||||
(float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000,
|
||||
(float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000,
|
||||
(float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000,
|
||||
(float)0.00000000, (float)0.00000000, (float)0.00654494, (float)0.01308960, (float)0.01963369,
|
||||
(float)0.02617695, (float)0.03271908, (float)0.03925982, (float)0.04579887, (float)0.05233596,
|
||||
(float)0.05887080, (float)0.06540313, (float)0.07193266, (float)0.07845910, (float)0.08498218,
|
||||
(float)0.09150162, (float)0.09801714, (float)0.10452846, (float)0.11103531, (float)0.11753740,
|
||||
(float)0.12403446, (float)0.13052620, (float)0.13701233, (float)0.14349262, (float)0.14996676,
|
||||
(float)0.15643448, (float)0.16289547, (float)0.16934951, (float)0.17579629, (float)0.18223552,
|
||||
(float)0.18866697, (float)0.19509032, (float)0.20150533, (float)0.20791170, (float)0.21430916,
|
||||
(float)0.22069745, (float)0.22707628, (float)0.23344538, (float)0.23980446, (float)0.24615330,
|
||||
(float)0.25249159, (float)0.25881904, (float)0.26513544, (float)0.27144045, (float)0.27773386,
|
||||
(float)0.28401536, (float)0.29028466, (float)0.29654160, (float)0.30278578, (float)0.30901700,
|
||||
(float)0.31523499, (float)0.32143945, (float)0.32763019, (float)0.33380687, (float)0.33996925,
|
||||
(float)0.34611708, (float)0.35225007, (float)0.35836795, (float)0.36447051, (float)0.37055743,
|
||||
(float)0.37662852, (float)0.38268346, (float)0.38872197, (float)0.39474389, (float)0.40074885,
|
||||
(float)0.40673664, (float)0.41270703, (float)0.41865975, (float)0.42459452, (float)0.43051112,
|
||||
(float)0.43640924, (float)0.44228873, (float)0.44814920, (float)0.45399052, (float)0.45981237,
|
||||
(float)0.46561453, (float)0.47139674, (float)0.47715878, (float)0.48290035, (float)0.48862126,
|
||||
(float)0.49432120, (float)0.50000000, (float)0.50565743, (float)0.51129311, (float)0.51690692,
|
||||
(float)0.52249855, (float)0.52806789, (float)0.53361452, (float)0.53913832, (float)0.54463905,
|
||||
(float)0.55011642, (float)0.55557024, (float)0.56100029, (float)0.56640625, (float)0.57178795,
|
||||
(float)0.57714522, (float)0.58247769, (float)0.58778524, (float)0.59306765, (float)0.59832460,
|
||||
(float)0.60355598, (float)0.60876143, (float)0.61394083, (float)0.61909395, (float)0.62422055,
|
||||
(float)0.62932038, (float)0.63439333, (float)0.63943899, (float)0.64445734, (float)0.64944810,
|
||||
(float)0.65441096, (float)0.65934587, (float)0.66425246, (float)0.66913062, (float)0.67398012,
|
||||
(float)0.67880076, (float)0.68359232, (float)0.68835455, (float)0.69308740, (float)0.69779050,
|
||||
(float)0.70246369, (float)0.70710677, (float)0.71171963, (float)0.71630198, (float)0.72085363,
|
||||
(float)0.72537440, (float)0.72986406, (float)0.73432255, (float)0.73874950, (float)0.74314487,
|
||||
(float)0.74750835, (float)0.75183982, (float)0.75613910, (float)0.76040596, (float)0.76464027,
|
||||
(float)0.76884186, (float)0.77301043, (float)0.77714598, (float)0.78124821, (float)0.78531694,
|
||||
(float)0.78935206, (float)0.79335338, (float)0.79732066, (float)0.80125386, (float)0.80515265,
|
||||
(float)0.80901700, (float)0.81284672, (float)0.81664157, (float)0.82040149, (float)0.82412618,
|
||||
(float)0.82781565, (float)0.83146966, (float)0.83508795, (float)0.83867061, (float)0.84221727,
|
||||
(float)0.84572780, (float)0.84920216, (float)0.85264021, (float)0.85604161, (float)0.85940641,
|
||||
(float)0.86273444, (float)0.86602545, (float)0.86927933, (float)0.87249607, (float)0.87567532,
|
||||
(float)0.87881714, (float)0.88192129, (float)0.88498765, (float)0.88801610, (float)0.89100653,
|
||||
(float)0.89395881, (float)0.89687276, (float)0.89974827, (float)0.90258533, (float)0.90538365,
|
||||
(float)0.90814316, (float)0.91086388, (float)0.91354549, (float)0.91618794, (float)0.91879123,
|
||||
(float)0.92135513, (float)0.92387950, (float)0.92636442, (float)0.92880958, (float)0.93121493,
|
||||
(float)0.93358046, (float)0.93590593, (float)0.93819135, (float)0.94043654, (float)0.94264150,
|
||||
(float)0.94480604, (float)0.94693011, (float)0.94901365, (float)0.95105654, (float)0.95305866,
|
||||
(float)0.95501995, (float)0.95694035, (float)0.95881975, (float)0.96065807, (float)0.96245527,
|
||||
(float)0.96421117, (float)0.96592581, (float)0.96759909, (float)0.96923089, (float)0.97082120,
|
||||
(float)0.97236991, (float)0.97387701, (float)0.97534233, (float)0.97676587, (float)0.97814763,
|
||||
(float)0.97948742, (float)0.98078531, (float)0.98204112, (float)0.98325491, (float)0.98442656,
|
||||
(float)0.98555607, (float)0.98664331, (float)0.98768836, (float)0.98869103, (float)0.98965138,
|
||||
(float)0.99056935, (float)0.99144489, (float)0.99227792, (float)0.99306846, (float)0.99381649,
|
||||
(float)0.99452192, (float)0.99518472, (float)0.99580491, (float)0.99638247, (float)0.99691731,
|
||||
(float)0.99740952, (float)0.99785894, (float)0.99826562, (float)0.99862951, (float)0.99895066,
|
||||
(float)0.99922901, (float)0.99946457, (float)0.99965733, (float)0.99980724, (float)0.99991435,
|
||||
(float)0.99997860, (float)1.00000000, (float)0.99997860, (float)0.99991435, (float)0.99980724,
|
||||
(float)0.99965733, (float)0.99946457, (float)0.99922901, (float)0.99895066, (float)0.99862951,
|
||||
(float)0.99826562, (float)0.99785894, (float)0.99740946, (float)0.99691731, (float)0.99638247,
|
||||
(float)0.99580491, (float)0.99518472, (float)0.99452192, (float)0.99381644, (float)0.99306846,
|
||||
(float)0.99227792, (float)0.99144489, (float)0.99056935, (float)0.98965138, (float)0.98869103,
|
||||
(float)0.98768836, (float)0.98664331, (float)0.98555607, (float)0.98442656, (float)0.98325491,
|
||||
(float)0.98204112, (float)0.98078525, (float)0.97948742, (float)0.97814757, (float)0.97676587,
|
||||
(float)0.97534227, (float)0.97387695, (float)0.97236991, (float)0.97082120, (float)0.96923089,
|
||||
(float)0.96759909, (float)0.96592581, (float)0.96421117, (float)0.96245521, (float)0.96065807,
|
||||
(float)0.95881969, (float)0.95694029, (float)0.95501995, (float)0.95305860, (float)0.95105648,
|
||||
(float)0.94901365, (float)0.94693011, (float)0.94480604, (float)0.94264150, (float)0.94043654,
|
||||
(float)0.93819129, (float)0.93590593, (float)0.93358046, (float)0.93121493, (float)0.92880952,
|
||||
(float)0.92636436, (float)0.92387950, (float)0.92135507, (float)0.91879123, (float)0.91618794,
|
||||
(float)0.91354543, (float)0.91086382, (float)0.90814310, (float)0.90538365, (float)0.90258527,
|
||||
(float)0.89974827, (float)0.89687276, (float)0.89395875, (float)0.89100647, (float)0.88801610,
|
||||
(float)0.88498759, (float)0.88192123, (float)0.87881714, (float)0.87567532, (float)0.87249595,
|
||||
(float)0.86927933, (float)0.86602539, (float)0.86273432, (float)0.85940641, (float)0.85604161,
|
||||
(float)0.85264009, (float)0.84920216, (float)0.84572780, (float)0.84221715, (float)0.83867055,
|
||||
(float)0.83508795, (float)0.83146954, (float)0.82781565, (float)0.82412612, (float)0.82040137,
|
||||
(float)0.81664157, (float)0.81284660, (float)0.80901700, (float)0.80515265, (float)0.80125374,
|
||||
(float)0.79732066, (float)0.79335332, (float)0.78935200, (float)0.78531694, (float)0.78124815,
|
||||
(float)0.77714586, (float)0.77301049, (float)0.76884180, (float)0.76464021, (float)0.76040596,
|
||||
(float)0.75613904, (float)0.75183970, (float)0.74750835, (float)0.74314481, (float)0.73874938,
|
||||
(float)0.73432249, (float)0.72986400, (float)0.72537428, (float)0.72085363, (float)0.71630186,
|
||||
(float)0.71171951, (float)0.70710677, (float)0.70246363, (float)0.69779032, (float)0.69308734,
|
||||
(float)0.68835449, (float)0.68359220, (float)0.67880070, (float)0.67398006, (float)0.66913044,
|
||||
(float)0.66425240, (float)0.65934575, (float)0.65441096, (float)0.64944804, (float)0.64445722,
|
||||
(float)0.63943905, (float)0.63439327, (float)0.62932026, (float)0.62422055, (float)0.61909389,
|
||||
(float)0.61394072, (float)0.60876143, (float)0.60355592, (float)0.59832448, (float)0.59306765,
|
||||
(float)0.58778518, (float)0.58247757, (float)0.57714522, (float)0.57178789, (float)0.56640613,
|
||||
(float)0.56100023, (float)0.55557019, (float)0.55011630, (float)0.54463905, (float)0.53913826,
|
||||
(float)0.53361434, (float)0.52806783, (float)0.52249849, (float)0.51690674, (float)0.51129305,
|
||||
(float)0.50565726, (float)0.50000006, (float)0.49432117, (float)0.48862115, (float)0.48290038,
|
||||
(float)0.47715873, (float)0.47139663, (float)0.46561456, (float)0.45981231, (float)0.45399037,
|
||||
(float)0.44814920, (float)0.44228864, (float)0.43640912, (float)0.43051112, (float)0.42459446,
|
||||
(float)0.41865960, (float)0.41270703, (float)0.40673658, (float)0.40074870, (float)0.39474386,
|
||||
(float)0.38872188, (float)0.38268328, (float)0.37662849, (float)0.37055734, (float)0.36447033,
|
||||
(float)0.35836792, (float)0.35224995, (float)0.34611690, (float)0.33996922, (float)0.33380675,
|
||||
(float)0.32763001, (float)0.32143945, (float)0.31523487, (float)0.30901679, (float)0.30278572,
|
||||
(float)0.29654145, (float)0.29028472, (float)0.28401530, (float)0.27773371, (float)0.27144048,
|
||||
(float)0.26513538, (float)0.25881892, (float)0.25249159, (float)0.24615324, (float)0.23980433,
|
||||
(float)0.23344538, (float)0.22707619, (float)0.22069728, (float)0.21430916, (float)0.20791161,
|
||||
(float)0.20150517, (float)0.19509031, (float)0.18866688, (float)0.18223536, (float)0.17579627,
|
||||
(float)0.16934940, (float)0.16289529, (float)0.15643445, (float)0.14996666, (float)0.14349243,
|
||||
(float)0.13701232, (float)0.13052608, (float)0.12403426, (float)0.11753736, (float)0.11103519,
|
||||
(float)0.10452849, (float)0.09801710, (float)0.09150149, (float)0.08498220, (float)0.07845904,
|
||||
(float)0.07193252, (float)0.06540315, (float)0.05887074, (float)0.05233581, (float)0.04579888,
|
||||
(float)0.03925974, (float)0.03271893, (float)0.02617695, (float)0.01963361, (float)0.01308943,
|
||||
(float)0.00654493, (float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000,
|
||||
(float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000,
|
||||
(float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000,
|
||||
(float)0.00000000, (float)0.00000000
|
||||
};
|
||||
|
||||
|
||||
// Hanning window: for 30ms with 1024 fft with symmetric zeros at 16kHz
|
||||
static const float kBlocks480w1024[1024] = {
|
||||
(float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000,
|
||||
(float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000,
|
||||
(float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000,
|
||||
(float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000,
|
||||
(float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000,
|
||||
(float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000,
|
||||
(float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00327249, (float)0.00654494,
|
||||
(float)0.00981732, (float)0.01308960, (float)0.01636173, (float)0.01963369, (float)0.02290544,
|
||||
(float)0.02617695, (float)0.02944817, (float)0.03271908, (float)0.03598964, (float)0.03925982,
|
||||
(float)0.04252957, (float)0.04579887, (float)0.04906768, (float)0.05233596, (float)0.05560368,
|
||||
(float)0.05887080, (float)0.06213730, (float)0.06540313, (float)0.06866825, (float)0.07193266,
|
||||
(float)0.07519628, (float)0.07845910, (float)0.08172107, (float)0.08498218, (float)0.08824237,
|
||||
(float)0.09150162, (float)0.09475989, (float)0.09801714, (float)0.10127335, (float)0.10452846,
|
||||
(float)0.10778246, (float)0.11103531, (float)0.11428697, (float)0.11753740, (float)0.12078657,
|
||||
(float)0.12403446, (float)0.12728101, (float)0.13052620, (float)0.13376999, (float)0.13701233,
|
||||
(float)0.14025325, (float)0.14349262, (float)0.14673047, (float)0.14996676, (float)0.15320145,
|
||||
(float)0.15643448, (float)0.15966582, (float)0.16289547, (float)0.16612339, (float)0.16934951,
|
||||
(float)0.17257382, (float)0.17579629, (float)0.17901687, (float)0.18223552, (float)0.18545224,
|
||||
(float)0.18866697, (float)0.19187967, (float)0.19509032, (float)0.19829889, (float)0.20150533,
|
||||
(float)0.20470962, (float)0.20791170, (float)0.21111156, (float)0.21430916, (float)0.21750447,
|
||||
(float)0.22069745, (float)0.22388805, (float)0.22707628, (float)0.23026206, (float)0.23344538,
|
||||
(float)0.23662618, (float)0.23980446, (float)0.24298020, (float)0.24615330, (float)0.24932377,
|
||||
(float)0.25249159, (float)0.25565669, (float)0.25881904, (float)0.26197866, (float)0.26513544,
|
||||
(float)0.26828939, (float)0.27144045, (float)0.27458861, (float)0.27773386, (float)0.28087610,
|
||||
(float)0.28401536, (float)0.28715158, (float)0.29028466, (float)0.29341471, (float)0.29654160,
|
||||
(float)0.29966527, (float)0.30278578, (float)0.30590302, (float)0.30901700, (float)0.31212768,
|
||||
(float)0.31523499, (float)0.31833893, (float)0.32143945, (float)0.32453656, (float)0.32763019,
|
||||
(float)0.33072028, (float)0.33380687, (float)0.33688986, (float)0.33996925, (float)0.34304500,
|
||||
(float)0.34611708, (float)0.34918544, (float)0.35225007, (float)0.35531089, (float)0.35836795,
|
||||
(float)0.36142117, (float)0.36447051, (float)0.36751595, (float)0.37055743, (float)0.37359497,
|
||||
(float)0.37662852, (float)0.37965801, (float)0.38268346, (float)0.38570479, (float)0.38872197,
|
||||
(float)0.39173502, (float)0.39474389, (float)0.39774847, (float)0.40074885, (float)0.40374491,
|
||||
(float)0.40673664, (float)0.40972406, (float)0.41270703, (float)0.41568562, (float)0.41865975,
|
||||
(float)0.42162940, (float)0.42459452, (float)0.42755508, (float)0.43051112, (float)0.43346250,
|
||||
(float)0.43640924, (float)0.43935132, (float)0.44228873, (float)0.44522133, (float)0.44814920,
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(float)0.31212750, (float)0.30901679, (float)0.30590302, (float)0.30278572, (float)0.29966521,
|
||||
(float)0.29654145, (float)0.29341453, (float)0.29028472, (float)0.28715155, (float)0.28401530,
|
||||
(float)0.28087601, (float)0.27773371, (float)0.27458847, (float)0.27144048, (float)0.26828936,
|
||||
(float)0.26513538, (float)0.26197854, (float)0.25881892, (float)0.25565651, (float)0.25249159,
|
||||
(float)0.24932374, (float)0.24615324, (float)0.24298008, (float)0.23980433, (float)0.23662600,
|
||||
(float)0.23344538, (float)0.23026201, (float)0.22707619, (float)0.22388794, (float)0.22069728,
|
||||
(float)0.21750426, (float)0.21430916, (float)0.21111152, (float)0.20791161, (float)0.20470949,
|
||||
(float)0.20150517, (float)0.19829892, (float)0.19509031, (float)0.19187963, (float)0.18866688,
|
||||
(float)0.18545210, (float)0.18223536, (float)0.17901689, (float)0.17579627, (float)0.17257376,
|
||||
(float)0.16934940, (float)0.16612324, (float)0.16289529, (float)0.15966584, (float)0.15643445,
|
||||
(float)0.15320137, (float)0.14996666, (float)0.14673033, (float)0.14349243, (float)0.14025325,
|
||||
(float)0.13701232, (float)0.13376991, (float)0.13052608, (float)0.12728085, (float)0.12403426,
|
||||
(float)0.12078657, (float)0.11753736, (float)0.11428688, (float)0.11103519, (float)0.10778230,
|
||||
(float)0.10452849, (float)0.10127334, (float)0.09801710, (float)0.09475980, (float)0.09150149,
|
||||
(float)0.08824220, (float)0.08498220, (float)0.08172106, (float)0.07845904, (float)0.07519618,
|
||||
(float)0.07193252, (float)0.06866808, (float)0.06540315, (float)0.06213728, (float)0.05887074,
|
||||
(float)0.05560357, (float)0.05233581, (float)0.04906749, (float)0.04579888, (float)0.04252954,
|
||||
(float)0.03925974, (float)0.03598953, (float)0.03271893, (float)0.02944798, (float)0.02617695,
|
||||
(float)0.02290541, (float)0.01963361, (float)0.01636161, (float)0.01308943, (float)0.00981712,
|
||||
(float)0.00654493, (float)0.00327244, (float)0.00000000, (float)0.00000000, (float)0.00000000,
|
||||
(float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000,
|
||||
(float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000,
|
||||
(float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000,
|
||||
(float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000,
|
||||
(float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000,
|
||||
(float)0.00000000, (float)0.00000000, (float)0.00000000, (float)0.00000000
|
||||
};
|
||||
|
||||
#endif // WEBRTC_MODULES_AUDIO_PROCESSING_NS_MAIN_SOURCE_WINDOWS_PRIVATE_H_
|
||||
Reference in New Issue
Block a user