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AEC3: Correcting minimum comfort noise levels

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This CL corrects the minimum bound for the estimated
comfort noise level.

Bug: webrtc:10533
Change-Id: I473275ffbc7bb52572315849f30e13b764109d92
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/132003
Reviewed-by: Per Åhgren <peah@webrtc.org>
Reviewed-by: Gustaf Ullberg <gustaf@webrtc.org>
Commit-Queue: Per Åhgren <peah@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#27567}
This commit is contained in:
Per Åhgren 2019-04-11 15:44:38 +02:00 committed by Commit Bot
parent 52caa0ef58
commit ffa1d173fe
1 changed files with 3 additions and 2 deletions
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5
modules/audio_processing/aec3/comfort_noise_generator.cc
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@ -139,8 +139,9 @@ void ComfortNoiseGenerator::Compute(
}
}
// Limit the noise to a floor of -96 dBFS.
constexpr float kNoiseFloor = 440.f;
// Limit the noise to a floor matching a WGN input of -96 dBFS.
constexpr float kNoiseFloor = 17.1267f;
for (auto& n : N2_) {
n = std::max(n, kNoiseFloor);
}