Changes to comfort noise generation; 1) faster convergence initially, 2) lower startup shape, 3) few code optimizations, 4) removed a bug that could cause noise estimate to go to zero, 5) removed a bug that could cause noise estimate to never recover from low values.
Review URL: http://webrtc-codereview.appspot.com/73001

git-svn-id: http://webrtc.googlecode.com/svn/trunk@222 4adac7df-926f-26a2-2b94-8c16560cd09d
2 files changed