3ab308f869
This CL adds functionality for passing the information about the estimated delay to the echo remover in AEC3. The CL also adds information about how long ago the delay changed, and how long ago the delay estimate was updated. Bug: webrtc:8671 Change-Id: If274ffe0465eb550f3e186d0599c6dc6fef7f5e8 Reviewed-on: https://webrtc-review.googlesource.com/55261 Reviewed-by: Gustaf Ullberg <gustaf@webrtc.org> Commit-Queue: Per Åhgren <peah@webrtc.org> Cr-Commit-Position: refs/heads/master@{#22137}
125 lines
4.6 KiB
C++
125 lines
4.6 KiB
C++
/*
|
|
* Copyright (c) 2017 The WebRTC project authors. All Rights Reserved.
|
|
*
|
|
* Use of this source code is governed by a BSD-style license
|
|
* that can be found in the LICENSE file in the root of the source
|
|
* tree. An additional intellectual property rights grant can be found
|
|
* in the file PATENTS. All contributing project authors may
|
|
* be found in the AUTHORS file in the root of the source tree.
|
|
*/
|
|
|
|
#include "modules/audio_processing/aec3/suppression_gain.h"
|
|
|
|
#include "modules/audio_processing/aec3/aec_state.h"
|
|
#include "modules/audio_processing/aec3/render_delay_buffer.h"
|
|
#include "modules/audio_processing/aec3/subtractor.h"
|
|
#include "modules/audio_processing/logging/apm_data_dumper.h"
|
|
#include "rtc_base/checks.h"
|
|
#include "system_wrappers/include/cpu_features_wrapper.h"
|
|
#include "test/gtest.h"
|
|
#include "typedefs.h" // NOLINT(build/include)
|
|
|
|
namespace webrtc {
|
|
namespace aec3 {
|
|
|
|
#if RTC_DCHECK_IS_ON && GTEST_HAS_DEATH_TEST && !defined(WEBRTC_ANDROID)
|
|
|
|
// Verifies that the check for non-null output gains works.
|
|
TEST(SuppressionGain, NullOutputGains) {
|
|
std::array<float, kFftLengthBy2Plus1> E2;
|
|
std::array<float, kFftLengthBy2Plus1> R2;
|
|
std::array<float, kFftLengthBy2Plus1> N2;
|
|
E2.fill(0.f);
|
|
R2.fill(0.f);
|
|
N2.fill(0.f);
|
|
float high_bands_gain;
|
|
AecState aec_state(EchoCanceller3Config{});
|
|
EXPECT_DEATH(SuppressionGain(EchoCanceller3Config{}, DetectOptimization())
|
|
.GetGain(E2, R2, N2, RenderSignalAnalyzer(), aec_state,
|
|
std::vector<std::vector<float>>(
|
|
3, std::vector<float>(kBlockSize, 0.f)),
|
|
&high_bands_gain, nullptr),
|
|
"");
|
|
}
|
|
|
|
#endif
|
|
|
|
// Does a sanity check that the gains are correctly computed.
|
|
TEST(SuppressionGain, BasicGainComputation) {
|
|
SuppressionGain suppression_gain(EchoCanceller3Config(),
|
|
DetectOptimization());
|
|
RenderSignalAnalyzer analyzer;
|
|
float high_bands_gain;
|
|
std::array<float, kFftLengthBy2Plus1> E2;
|
|
std::array<float, kFftLengthBy2Plus1> Y2;
|
|
std::array<float, kFftLengthBy2Plus1> R2;
|
|
std::array<float, kFftLengthBy2Plus1> N2;
|
|
std::array<float, kFftLengthBy2Plus1> g;
|
|
std::array<float, kBlockSize> s;
|
|
std::vector<std::vector<float>> x(1, std::vector<float>(kBlockSize, 0.f));
|
|
EchoCanceller3Config config;
|
|
AecState aec_state(config);
|
|
ApmDataDumper data_dumper(42);
|
|
Subtractor subtractor(config, &data_dumper, DetectOptimization());
|
|
std::unique_ptr<RenderDelayBuffer> render_delay_buffer(
|
|
RenderDelayBuffer::Create(config, 3));
|
|
rtc::Optional<DelayEstimate> delay_estimate;
|
|
|
|
// Ensure that a strong noise is detected to mask any echoes.
|
|
E2.fill(10.f);
|
|
Y2.fill(10.f);
|
|
R2.fill(0.1f);
|
|
N2.fill(100.f);
|
|
s.fill(10.f);
|
|
|
|
// Ensure that the gain is no longer forced to zero.
|
|
for (int k = 0; k <= kNumBlocksPerSecond / 5 + 1; ++k) {
|
|
aec_state.Update(delay_estimate, subtractor.FilterFrequencyResponse(),
|
|
subtractor.FilterImpulseResponse(),
|
|
subtractor.ConvergedFilter(),
|
|
*render_delay_buffer->GetRenderBuffer(), E2, Y2, s, false);
|
|
}
|
|
|
|
for (int k = 0; k < 100; ++k) {
|
|
aec_state.Update(delay_estimate, subtractor.FilterFrequencyResponse(),
|
|
subtractor.FilterImpulseResponse(),
|
|
subtractor.ConvergedFilter(),
|
|
*render_delay_buffer->GetRenderBuffer(), E2, Y2, s, false);
|
|
suppression_gain.GetGain(E2, R2, N2, analyzer, aec_state, x,
|
|
&high_bands_gain, &g);
|
|
}
|
|
std::for_each(g.begin(), g.end(),
|
|
[](float a) { EXPECT_NEAR(1.f, a, 0.001); });
|
|
|
|
// Ensure that a strong nearend is detected to mask any echoes.
|
|
E2.fill(100.f);
|
|
Y2.fill(100.f);
|
|
R2.fill(0.1f);
|
|
N2.fill(0.f);
|
|
for (int k = 0; k < 100; ++k) {
|
|
aec_state.Update(delay_estimate, subtractor.FilterFrequencyResponse(),
|
|
subtractor.FilterImpulseResponse(),
|
|
subtractor.ConvergedFilter(),
|
|
*render_delay_buffer->GetRenderBuffer(), E2, Y2, s, false);
|
|
suppression_gain.GetGain(E2, R2, N2, analyzer, aec_state, x,
|
|
&high_bands_gain, &g);
|
|
}
|
|
std::for_each(g.begin(), g.end(),
|
|
[](float a) { EXPECT_NEAR(1.f, a, 0.001); });
|
|
|
|
// Ensure that a strong echo is suppressed.
|
|
E2.fill(1000000000.f);
|
|
R2.fill(10000000000000.f);
|
|
N2.fill(0.f);
|
|
for (int k = 0; k < 10; ++k) {
|
|
suppression_gain.GetGain(E2, R2, N2, analyzer, aec_state, x,
|
|
&high_bands_gain, &g);
|
|
}
|
|
std::for_each(g.begin(), g.end(),
|
|
[](float a) { EXPECT_NEAR(0.f, a, 0.001); });
|
|
|
|
}
|
|
|
|
} // namespace aec3
|
|
} // namespace webrtc
|