8db8069660
From 6kHz-6.5kHz to 3kHz-5kHz. Previous range had unreliable mask values, letting high frequencies from all directions through. The new range is wider and lower, which results in better estimates. R=andrew@webrtc.org Review URL: https://webrtc-codereview.appspot.com/47089004 Cr-Commit-Position: refs/heads/master@{#9213}