This is to more accurately simulate Opus CNG. Bug: None Change-Id: I3244d88e1f7410190551b6fa24cdd08599b5771e Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/262661 Reviewed-by: Minyue Li <minyue@webrtc.org> Commit-Queue: Jakob Ivarsson <jakobi@webrtc.org> Cr-Commit-Position: refs/heads/main@{#36913}