commit c4deaaa7c55c33abda6addc4c7016006f0dc72fe
author Sam Zackrisson <saza@webrtc.org> Thu Aug 16 11:42:27 2018 +0200
committer Commit Bot <commit-bot@chromium.org> Thu Aug 16 12:14:14 2018 +0000
tree ea169a1c37d9d771506e7da50e8e2d577f8e97cf
parent 537b7fed9a2925140f7d6bfc671547fe5b9016ed

Set AEC2 suppression to high by default

The other modes are little-tested and nigh-unsupported.
Surrounding APM code is tuned for high suppression.

Both WebRtcVoiceEngine and Chrome default all usage to high
suppression.

Bug: webrtc:9535
Change-Id: Ic1a6bd90b86a994338addfef7f473132ab43092a
Reviewed-on: https://webrtc-review.googlesource.com/91865
Reviewed-by: Alex Loiko <aleloi@webrtc.org>
Commit-Queue: Sam Zackrisson <saza@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#24313}

modules/audio_processing/audio_processing_unittest.cc

diff --git a/modules/audio_processing/audio_processing_unittest.cc b/modules/audio_processing/audio_processing_unittest.cc
index 3776474..346c2a2 100644
--- a/modules/audio_processing/audio_processing_unittest.cc
+++ b/modules/audio_processing/audio_processing_unittest.cc
@@ -187,6 +187,8 @@
   EXPECT_NOERR(ap->echo_cancellation()->enable_drift_compensation(true));
   EXPECT_NOERR(ap->echo_cancellation()->enable_metrics(true));
   EXPECT_NOERR(ap->echo_cancellation()->enable_delay_logging(true));
+  EXPECT_NOERR(ap->echo_cancellation()->set_suppression_level(
+      EchoCancellation::SuppressionLevel::kModerateSuppression));
   EXPECT_NOERR(ap->echo_cancellation()->Enable(true));
 
   EXPECT_NOERR(ap->gain_control()->set_mode(GainControl::kAdaptiveAnalog));

modules/audio_processing/echo_cancellation_impl.cc

diff --git a/modules/audio_processing/echo_cancellation_impl.cc b/modules/audio_processing/echo_cancellation_impl.cc
index 15cd0db..9feaea7 100644
--- a/modules/audio_processing/echo_cancellation_impl.cc
+++ b/modules/audio_processing/echo_cancellation_impl.cc
@@ -109,7 +109,7 @@
       crit_capture_(crit_capture),
       drift_compensation_enabled_(false),
       metrics_enabled_(false),
-      suppression_level_(kModerateSuppression),
+      suppression_level_(kHighSuppression),
       stream_drift_samples_(0),
       was_stream_drift_set_(false),
       stream_has_echo_(false),