Adds robust validation functionality to the delay estimator

Evaluated over a 51 recordings:
False positives went from 4.4% to 0.7%
Missed detections unchanged at 0.8%
No increase in complexity, but need to re-evaluate that.

TESTED=trybots, unittests, verified against Matlab implementation
BUG=None
R=aluebs@webrtc.org, andrew@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/5419004

git-svn-id: http://webrtc.googlecode.com/svn/trunk/webrtc@5296 4adac7df-926f-26a2-2b94-8c16560cd09d
2 files changed