Plus tests for 16 kHz. Bug: webrtc:10631 Change-Id: I2d89bc6d0d9548f0ad7bb1e36d6dfde6b6b31f83 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/138072 Commit-Queue: Karl Wiberg <kwiberg@webrtc.org> Reviewed-by: Minyue Li <minyue@webrtc.org> Cr-Commit-Position: refs/heads/master@{#28099}