0cbb58e046
This is a reland of 87a7b82520b83a6cf42da27cdc46142c2eb6248c Original change's description: > Refactoring of the noise suppressor and adding true multichannel support > > This CL adds proper multichannel support to the noise suppressor. > To accomplish that in a safe way, a full refactoring of the noise > suppressor code has been done. > > Due to floating point precision, the changes made are not entirely > bitexact. They are, however, very close to being bitexact. > > As a safety measure, the former noise suppressor code is preserved > and a kill-switch is added to allow revering to the legacy noise > suppressor in case issues arise. > > Bug: webrtc:10895, b/143344262 > Change-Id: I0b071011b23265ac12e6d4b3956499d122286657 > Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/158407 > Commit-Queue: Per Åhgren <peah@webrtc.org> > Reviewed-by: Gustaf Ullberg <gustaf@webrtc.org> > Cr-Commit-Position: refs/heads/master@{#29646} Bug: webrtc:10895, b/143344262 Change-Id: I236f1e67bb0baa4e30908a4cf7a8a7bb55fbced3 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/158747 Reviewed-by: Gustaf Ullberg <gustaf@webrtc.org> Commit-Queue: Per Åhgren <peah@webrtc.org> Cr-Commit-Position: refs/heads/master@{#29663}
53 lines
2.3 KiB
C
53 lines
2.3 KiB
C
/*
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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 MODULES_AUDIO_PROCESSING_LEGACY_NS_DEFINES_H_
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#define MODULES_AUDIO_PROCESSING_LEGACY_NS_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 0.25f
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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 40.f
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#define WIDTH 0.01f
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// Length of fft work arrays.
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#define IP_LENGTH \
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(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 0.98f // DD update of prior SNR
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#define LRT_TAVG 0.5f // tavg parameter for LRT (previously 0.90)
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#define SPECT_FL_TAVG 0.30f // tavg parameter for spectral flatness measure
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#define SPECT_DIFF_TAVG 0.30f // tavg parameter for spectral difference measure
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#define PRIOR_UPDATE 0.1f // update parameter of prior model
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#define NOISE_UPDATE 0.9f // update parameter for noise
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#define SPEECH_UPDATE 0.99f // update parameter when likely speech
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#define WIDTH_PR_MAP 4.0f // width parameter in sigmoid map for prior model
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#define LRT_FEATURE_THR 0.5f // default threshold for LRT feature
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#define SF_FEATURE_THR 0.5f // default threshold for Spectral Flatness feature
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#define SD_FEATURE_THR \
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0.5f // default threshold for Spectral Difference feature
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#define PROB_RANGE \
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0.2f // 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 0.05f // update for conservative noise estimate
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//
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#define B_LIM 0.5f // threshold in final energy gain factor calculation
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#endif // MODULES_AUDIO_PROCESSING_LEGACY_NS_DEFINES_H_
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