This makes the calculation more similar to the one in WebRTCVoiceEngine. Bug: webrtc:9510 Change-Id: Ibca69842726e51c07b9cc9550ff9f15a24161e28 Reviewed-on: https://webrtc-review.googlesource.com/c/107653 Reviewed-by: Oskar Sundbom <ossu@webrtc.org> Commit-Queue: Sebastian Jansson <srte@webrtc.org> Cr-Commit-Position: refs/heads/master@{#25448}