Turn on old glorious beep sound

1- sudo nano /etc/modprobe.d/blacklist.conf


# ugly and loud noise
##blacklist pcspkr


2- cp /etc/pulse/default.pa ~/.config/pulse/default.pa

add to end of file this:
"unload-module module-suspend-on-idle"

3- nano ~/.config/pulse/default.pa


### Allow including a default.pa.d directory, which if present, can be used
### for additional configuration snippets.
### Note that those snippet files must have a .pa file extension, not .conf
.nofail
.include /etc/pulse/default.pa.d
unload-module module-suspend-on-idle