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AEC3: Adaptive handling of echo path with strong high-frequency gain

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This CL adds adaptive handling of platforms where the echo path has
a strong gain above 10 kHz. A configurable offset is adaptively applied
depending on the amount of echo and mode of the echo suppressor.

Bug: webrtc:9663
Change-Id: I27dde6dc23b04a76a3be8c49d7fc9e226b9137e6
Reviewed-on: https://webrtc-review.googlesource.com/95947
Commit-Queue: Per Åhgren <peah@webrtc.org>
Reviewed-by: Gustaf Ullberg <gustaf@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#24448}
This commit is contained in:
Per Åhgren
2018-08-27 14:19:35 +02:00
committed by Commit Bot
parent 01a89904c0
commit fde4aa9909
6 changed files with 114 additions and 67 deletions
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5
api/audio/echo_canceller3_config.h
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@ -183,6 +183,11 @@ struct EchoCanceller3Config {
int trigger_threshold = 15;
} dominant_nearend_detection;
struct HighBandsSuppression {
float enr_threshold = 1.f;
float max_gain_during_echo = 1.f;
} high_bands_suppression;
float floor_first_increase = 0.00001f;
bool enforce_transparent = false;
bool enforce_empty_higher_bands = false;