Hello, yes, I also have observed the same sound problem (no sound and speedup of playback). Usually reboot helps but that’s still annoying.
See this thread:
Hello.
On devterm a06.
Sometimes there is no sound output at all.
Nothing can be heard.
I often like to listen to a youtube livestream in the morning and that’s when I notice that sound does not work.
(and not only the youtube in browser but any sound at all)
This happens only sometimes; most of the time is ok.
Usually, in this case when I reboot the sound will work again.
Just one time I had to reboot twice.
I don’t know how to fix this because I don’t know what is not working and I do…