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AEC3: Avoid using filter output in suppression gain computation in non-linear mode

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As non-linear mode uses a suppressed version of y (not e) as output, this change
uses Y2, rather than E2, as nearend spectrum when computing the suppression gains.
E2 is still used in linear mode.

This change also affects how the minimum suppression gains are calculated. The
minimum gain is now min_echo_power / weighted_residual_echo.

Bug: webrtc:10550
Change-Id: I2904c5a09dd64b06bf25eb5a37c18dab50297794
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/133023
Commit-Queue: Gustaf Ullberg <gustaf@webrtc.org>
Reviewed-by: Per Åhgren <peah@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#27629}
This commit is contained in:
Gustaf Ullberg
2019-04-15 17:15:37 +02:00
committed by Commit Bot
parent 01738c63aa
commit 2bab5ad3b1
5 changed files with 26 additions and 24 deletions
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resources/audio_processing/output_data_float.pb.sha1
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