Sound at linux

https://github.com/jackaudio/jackaudio.github.com/wiki/WalkThrough_User_PulseOnJack

sudo alsactl init
 
lspci | grep -i audio
cat /proc/asound/cards
 
speaker-test -c 8 -t wav -D hw:PCH,0

https://suryanshpradhan.wordpress.com/2019/12/11/how-to-fix-debian-slax-linux-playing-no-sound-on-laptops/

https://askubuntu.com/questions/572120/how-to-use-jack-and-pulseaudio-alsa-at-the-same-time-on-the-same-audio-device