This makes the addaptation of the IntelligibilityEnhancer slower, which makes it take more time to kick in or when the background noise changes drastically. But on the other hand, it reduces the risk of clipping and makes the changing in coloring less noticeable.
R=henrik.lundin@webrtc.org, peah@webrtc.org, turaj@webrtc.org
Review URL: https://codereview.webrtc.org/1848123002 .
Cr-Commit-Position: refs/heads/master@{#12202}