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Corrected the detection of narrowband render signals

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This CL corrects the bug that only looked at narrowband
render signals above 900 Hz and only assumed that the
influence of such lasted for 6 blocks, which resulted
in filter divergence and echo leakage.


Bug: webrtc:9008,chromium:821670
Change-Id: I9b2635d24b260e9d9a8c5c088ab663e03fb93c42
Reviewed-on: https://webrtc-review.googlesource.com/61800
Commit-Queue: Per Åhgren <peah@webrtc.org>
Reviewed-by: Ivo Creusen <ivoc@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#22434}
This commit is contained in:
Per Åhgren
2018-03-14 23:23:47 +01:00
committed by Commit Bot
parent ee205f5bba
commit 971de07713
9 changed files with 35 additions and 26 deletions
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4
modules/audio_processing/aec3/render_signal_analyzer.h
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@ -14,6 +14,7 @@
#include <array>
#include <memory>
#include "api/audio/echo_canceller3_config.h"
#include "api/optional.h"
#include "modules/audio_processing/aec3/aec3_common.h"
#include "modules/audio_processing/aec3/render_buffer.h"
@ -24,7 +25,7 @@ namespace webrtc {
// Provides functionality for analyzing the properties of the render signal.
class RenderSignalAnalyzer {
public:
RenderSignalAnalyzer();
explicit RenderSignalAnalyzer(const EchoCanceller3Config& config);
~RenderSignalAnalyzer();
// Updates the render signal analysis with the most recent render signal.
@ -46,6 +47,7 @@ class RenderSignalAnalyzer {
rtc::Optional<int> NarrowPeakBand() const { return narrow_peak_band_; }
private:
const int strong_peak_freeze_duration_;
std::array<size_t, kFftLengthBy2 - 1> narrow_band_counters_;
rtc::Optional<int> narrow_peak_band_;
size_t narrow_peak_counter_;