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This CL increases the transparency in AEC3 during regions of low level echo. What is done is: -Low-level echoes are smoothly weighted so as to be deemed less disturbing. -The time-domain masking effect of the nearend speech is increased for all frequencies. -A separate, even more increased, time-domain masking effect is introduced for lower frequencies. -The intra-band masking is reduced to reduce the risk of echo leakage. -The limiting of maximum gain due to filter-bank dynamics is removed as the usecase for it could no longer be identified. Bug: webrtc:9159,cromium:833801 Change-Id: I289b92919763124d6c5e5ede19e9a5917877c654 Reviewed-on: https://webrtc-review.googlesource.com/70421 Reviewed-by: Gustaf Ullberg <gustaf@webrtc.org> Commit-Queue: Per Åhgren <peah@webrtc.org> Cr-Commit-Position: refs/heads/master@{#22915}
20 lines
776 B
C++
20 lines
776 B
C++
/*
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* Copyright (c) 2018 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 "api/audio/echo_canceller3_config.h"
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namespace webrtc {
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EchoCanceller3Config::EchoCanceller3Config() = default;
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EchoCanceller3Config::EchoCanceller3Config(const EchoCanceller3Config& e) =
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default;
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EchoCanceller3Config::Mask::Mask() = default;
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EchoCanceller3Config::Mask::Mask(const EchoCanceller3Config::Mask& m) = default;
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} // namespace webrtc
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