commit 3cfa756f371ffdcc0369d745e9832cfff55861ba
author Bjorn Volcker <bjornv@chromium.org> Wed Apr 29 18:22:44 2015
committer Bjorn Volcker <bjornv@chromium.org> Wed Apr 29 18:22:50 2015
tree 4b861ec1e1733d0288139c724dfc75e27ac38e56
parent efbde3775b5eed8015d7e2e86ddcea3e6033d321

audio_processing/aec: Fixes an incorrect sampling rate multiplier when processing in 48 kHz

In AEC a fixed fft size is used, but processing can in the lower band be in either 8 or 16 kHz.
Therefore we need a multiplier/rate factor to, for example, map frequency bands in Hz to frequency bins.

The multiplier/rate factor can only be either 1 or 2, but when 48 kHz support was added it was assigned 3.

BUG=crbug.com/482424
R=aluebs@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/43329004

Cr-Commit-Position: refs/heads/master@{#9117}