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169c7fd521
This CL changes the way the suppressor gain is computed in AEC3 in that the FFTs used are padded with data and windowed with a Hanning-style window. This gives better FFT accuracy, an behavior matching the suppressor gain application, and also results in one less FFT operation. Bug: webrtc:9204,chromium:837563 Change-Id: I612676c389cb76a3130966a9b596ff3f44d21863 Reviewed-on: https://webrtc-review.googlesource.com/73141 Reviewed-by: Gustaf Ullberg <gustaf@webrtc.org> Commit-Queue: Per Åhgren <peah@webrtc.org> Cr-Commit-Position: refs/heads/master@{#23057}
43 lines
1.3 KiB
C++
43 lines
1.3 KiB
C++
/*
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* Copyright (c) 2017 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_AEC3_SUBTRACTOR_OUTPUT_H_
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#define MODULES_AUDIO_PROCESSING_AEC3_SUBTRACTOR_OUTPUT_H_
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#include <array>
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#include "modules/audio_processing/aec3/aec3_common.h"
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#include "modules/audio_processing/aec3/fft_data.h"
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namespace webrtc {
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// Stores the values being returned from the echo subtractor.
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struct SubtractorOutput {
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std::array<float, kBlockSize> s_main;
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std::array<float, kBlockSize> e_main;
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std::array<float, kBlockSize> e_shadow;
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FftData E_main;
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std::array<float, kFftLengthBy2Plus1> E2_main;
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std::array<float, kFftLengthBy2Plus1> E2_shadow;
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void Reset() {
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s_main.fill(0.f);
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e_main.fill(0.f);
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e_shadow.fill(0.f);
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E_main.re.fill(0.f);
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E_main.im.fill(0.f);
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E2_main.fill(0.f);
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E2_shadow.fill(0.f);
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}
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};
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} // namespace webrtc
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#endif // MODULES_AUDIO_PROCESSING_AEC3_SUBTRACTOR_OUTPUT_H_
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