Same here. I downgraded back to 9.2.0 in the meantime.
That happened to me last night, too.
Also downgraded to 9.2.0 and everything is back to normal.
midas and Nicolas , see This Thread
Same here, on an Intel NUC6CAYH hardware.
Managed to solve the issue with the hith from the linked post above.
take a look at:
soundcard regression (9.2 => 9.2.1) - LibreELEC Forum
(maybe) no need to downgrade !!! 
Hi all,
I have disabled 'Audio DSP' in the BIOS on my Intel NUC and now it works as it used to be.
Thank you very much.
Regards,
Mike
Thanks for posting this, disabling "HD-Audio DSP" has fixed the Audio issue for me as well. 
I am running LibreELEC on an Intel NUC NUC8i5BEH.
Will there be a solution for us normal Usero? Perhaps a new release?
Kind regerads
Rlinsweden
Will there be a solution for us normal Usero? Perhaps a new release?
Kind regerads
Rlinsweden
Did you try the suggestions posted above ? Do you have a late model Intel NUC ? If you tried both suggestions above with no success, then you should start your own thread.
Sorry.
It`s too complicated for me.I wait until à new release is there.
kind regards.
Rlinsweden
It`s too complicated for me.I wait until à new release is there.
It is not complicated to fix by yourself: go to your Computers BIOS while starting up (usually pressing F2 or DEL Key) and look for "HD-Audio DSP". Make sure it's disabled, save your BIOS settings and reboot. That's it.
I have 4 nuc`s one 3050, one i5 and 2 J3455. Witt the j3455 there are no succés.
I thank you for your help, but we leave it here. I can live With 9.2.0.
kind regards
Rlinsweden
I have 4 nuc`s one 3050, one i5 and 2 J3455. Witt the j3455 there are no succés.
I thank you for your help, but we leave it here. I can live With 9.2.0.
kind regards
Rlinsweden
J3455 Nuc does not have the HD Audio DSP option in the Bios.
You have to run the comand via SSH
Take a look at this Link (incl. video tutorial) from the wiki LE WIKI accessing LibreElec
You can use Putty on windows
MacOS and Linux Distros can connect directly
Also an Android device can do this, by using JuiceSSH etc.
Connect via ssh and run this line once, restart, done.
echo "blacklist snd_soc_skl" > /storage/.config/modprobe.d/blacklist-snd-soc-skl.confAFAIK It is a bug in the linux kernel itself, so maybe any new version will have this behavior.
Regards
Nicolas
Disabled the DSP in BIOS and all is ok with the world. Thanks guys.
Poirot
Disabled the DSP in BIOS and all is ok with the world. Thanks guys.
Poirot
I dual boot my NUC NUC7i5BNH with Win10 so this option is no good for me. When I disable DSP, Win10 audio no longer works 
no way do I want to have to go in the BIOS everytime I wanna switch to windows. A fix for the kernel on the horizon?
A fix for the kernel on the horizon?
Wasn't this fixed in 9.2.2 ?
