5c532d3774
This CL robustifies the echo removal behavior when headsets are used. In particular it: -Introduces a secondary, more refined alignment when no alignment can be found using the delay estimator. -Changes decision logic for when to use the linear filter output. -Changes the decision logic for when to be transparent. -Changes the way that the transparent mode works. -Makes the nonlinear mode less aggressive. -Removes the detector for non-audible echoes. -Makes the attenuation when there are signals with strong narrowband characteristics more mild in scenarios with low render. Furthermore the CL: -Removes the input of external echo leakage information. Bug: webrtc:9047,chromium:824111,webrtc:8314,webrtc:8671,webrtc:5201,webrtc:5919 Change-Id: Ied1fe0c0a35d3c31b47606ed2db319a73644d406 Reviewed-on: https://webrtc-review.googlesource.com/60866 Commit-Queue: Per Åhgren <peah@webrtc.org> Reviewed-by: Gustaf Ullberg <gustaf@webrtc.org> Cr-Commit-Position: refs/heads/master@{#22548}
39 lines
1.2 KiB
C++
39 lines
1.2 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_OUTPUT_SELECTOR_H_
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#define MODULES_AUDIO_PROCESSING_AEC3_OUTPUT_SELECTOR_H_
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#include "api/array_view.h"
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#include "rtc_base/constructormagic.h"
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namespace webrtc {
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// Performs the selection between which of the linear aec output and the
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// microphone signal should be used as the echo suppressor output.
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class OutputSelector {
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public:
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OutputSelector();
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~OutputSelector();
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// Forms the most appropriate output signal.
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void FormLinearOutput(bool use_subtractor_output,
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rtc::ArrayView<const float> subtractor_output,
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rtc::ArrayView<float> capture);
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private:
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bool use_subtractor_output_ = false;
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RTC_DISALLOW_COPY_AND_ASSIGN(OutputSelector);
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};
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} // namespace webrtc
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#endif // MODULES_AUDIO_PROCESSING_AEC3_OUTPUT_SELECTOR_H_
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