When watching a stream on https://twitch.tv (pick any active stream) after watching for some time the audio starts to become slightly distorted, almost like it's being reproduced at the wrong rate or pitch. The time that for the issue to show varies, sometime after 10 seconds, sometime after a couple of minutes. I can't reproduce it on other websites but I can't reproduce it with other browsers either, both Firefox and Chrome work perfectly.
<rdar://problem/44142537>
I have not been able to reproduce this on STP64. If this still reproduces for you, can you please capture a sysdiagnose immediately after reproducing it and note the exact time and URL. HW config details such as internal speakers vs AirPods vs HomePod may also be useful. Thanks.