Just installed a new distro and hearing really loud beeps when pressing backspace? Your PC speakers are making this loud beeping noise.
To disable the speaker immediately, as root
sudo rmmod pcspkr
To permanently disable the speaker, either put that on a startup script or install some other audio & system sounds.
After you’ve done some further installations like alsa audio mixer etc. you will probably want the speakers back on, so don’t forget that you disabled them lol and to re-enable them as required.