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Apply good settings to Beamformer

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R=andrew@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/33219004

Cr-Commit-Position: refs/heads/master@{#8398}
git-svn-id: http://webrtc.googlecode.com/svn/trunk@8398 4adac7df-926f-26a2-2b94-8c16560cd09d
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aluebs@webrtc.org 2015-02-17 19:24:28 +00:00
parent b08f4045ec
commit 27669f320b
1 changed files with 5 additions and 5 deletions
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10
webrtc/modules/audio_processing/beamformer/beamformer.cc
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@ -28,7 +28,7 @@ const float kAlpha = 1.5f;
// The minimum value a post-processing mask can take.
const float kMaskMinimum = 0.01f;
const float kSpeedOfSoundMeterSeconds = 340;
const float kSpeedOfSoundMeterSeconds = 343;
// For both target and interference angles, 0 is perpendicular to the microphone
// array, facing forwards. The positive direction goes counterclockwise.
@ -45,19 +45,19 @@ const float kInterfAngleRadians = static_cast<float>(M_PI) / 4.f;
// the weighted average between the uniform covariance matrix and the angled
// covariance matrix.
// Rpsi = Rpsi_angled * kBalance + Rpsi_uniform * (1 - kBalance)
const float kBalance = 0.2f;
const float kBalance = 0.4f;
// TODO(claguna): need comment here.
const float kBeamwidthConstant = 0.00001f;
const float kBeamwidthConstant = 0.00002f;
// Width of the boxcar.
const float kBoxcarHalfWidth = 0.001f;
const float kBoxcarHalfWidth = 0.01f;
// We put a gap in the covariance matrix where we expect the target to come
// from. Warning: This must be very small, ex. < 0.01, because otherwise it can
// cause the covariance matrix not to be positive semidefinite, and we require
// that our covariance matrices are positive semidefinite.
const float kCovUniformGapHalfWidth = 0.001f;
const float kCovUniformGapHalfWidth = 0.01f;
// Alpha coefficient for mask smoothing.
const float kMaskSmoothAlpha = 0.2f;