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https://github.com/danog/libtgvoip.git
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5caaaafa42
I'm now using the entire audio processing module from WebRTC as opposed to individual DSP algorithms pulled from there before. Seems to work better this way.
68 lines
2.4 KiB
C++
68 lines
2.4 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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#include "modules/audio_processing/aec3/erle_estimator.h"
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#include "api/array_view.h"
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#include "modules/audio_processing/aec3/aec3_common.h"
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#include "modules/audio_processing/logging/apm_data_dumper.h"
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#include "rtc_base/checks.h"
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namespace webrtc {
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ErleEstimator::ErleEstimator(size_t startup_phase_length_blocks_,
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float min_erle,
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float max_erle_lf,
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float max_erle_hf)
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: startup_phase_length_blocks__(startup_phase_length_blocks_),
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fullband_erle_estimator_(min_erle, max_erle_lf),
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subband_erle_estimator_(min_erle, max_erle_lf, max_erle_hf) {
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Reset(true);
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}
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ErleEstimator::~ErleEstimator() = default;
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void ErleEstimator::Reset(bool delay_change) {
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fullband_erle_estimator_.Reset();
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subband_erle_estimator_.Reset();
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if (delay_change) {
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blocks_since_reset_ = 0;
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}
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}
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void ErleEstimator::Update(rtc::ArrayView<const float> reverb_render_spectrum,
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rtc::ArrayView<const float> capture_spectrum,
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rtc::ArrayView<const float> subtractor_spectrum,
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bool converged_filter,
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bool onset_detection) {
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RTC_DCHECK_EQ(kFftLengthBy2Plus1, reverb_render_spectrum.size());
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RTC_DCHECK_EQ(kFftLengthBy2Plus1, capture_spectrum.size());
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RTC_DCHECK_EQ(kFftLengthBy2Plus1, subtractor_spectrum.size());
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const auto& X2_reverb = reverb_render_spectrum;
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const auto& Y2 = capture_spectrum;
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const auto& E2 = subtractor_spectrum;
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if (++blocks_since_reset_ < startup_phase_length_blocks__) {
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return;
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}
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subband_erle_estimator_.Update(X2_reverb, Y2, E2, converged_filter,
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onset_detection);
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fullband_erle_estimator_.Update(X2_reverb, Y2, E2, converged_filter);
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}
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void ErleEstimator::Dump(
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const std::unique_ptr<ApmDataDumper>& data_dumper) const {
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fullband_erle_estimator_.Dump(data_dumper);
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subband_erle_estimator_.Dump(data_dumper);
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}
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} // namespace webrtc
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