It is now required to specify which VAD is used to compute the speech probability passed when `TransientSuppressor::Suppress()` is called. In this way, it is possible to adapt parameters and/or logic of a `TransientSuppressor` implementation to the behavior of the used VAD. This CL also adds a "no VAD" mode option, which ignores the speech probability argument passed when `Suppress()` and always applies mild suppression to preserve transparency. Finally, this CL adds a field trial to choose which VAD is used by APM for transient suppression. Wiring the RNN VAD to TS will be done in a follow-up CL. Bug: webrtc:13663 Change-Id: I21ed49f91875a4ee0f04db97ea87c0dbc3db7f8a Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/250962 Reviewed-by: Hanna Silen <silen@webrtc.org> Commit-Queue: Alessio Bazzica <alessiob@webrtc.org> Cr-Commit-Position: refs/heads/main@{#36485}
40 lines
1.5 KiB
C++
40 lines
1.5 KiB
C++
/*
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* Copyright (c) 2020 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_OPTIONALLY_BUILT_SUBMODULE_CREATORS_H_
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#define MODULES_AUDIO_PROCESSING_OPTIONALLY_BUILT_SUBMODULE_CREATORS_H_
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#include <memory>
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#include "modules/audio_processing/transient/transient_suppressor.h"
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namespace webrtc {
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// These overrides are only to be used for testing purposes.
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// Each flag emulates a preprocessor macro to exclude a submodule of APM from
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// the build, e.g. WEBRTC_EXCLUDE_TRANSIENT_SUPPRESSOR. If the corresponding
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// flag `transient_suppression` is enabled, then the creators will return
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// nullptr instead of a submodule instance, as if the macro had been defined.
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struct ApmSubmoduleCreationOverrides {
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bool transient_suppression = false;
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};
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// Creates a transient suppressor.
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// Will instead return nullptr if one of the following is true:
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// * WEBRTC_EXCLUDE_TRANSIENT_SUPPRESSOR is defined
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// * The corresponding override in `overrides` is enabled.
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std::unique_ptr<TransientSuppressor> CreateTransientSuppressor(
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const ApmSubmoduleCreationOverrides& overrides,
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TransientSuppressor::VadMode vad_mode);
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} // namespace webrtc
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#endif // MODULES_AUDIO_PROCESSING_OPTIONALLY_BUILT_SUBMODULE_CREATORS_H_
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