Distorted headphone sound when using Skype for Linux

This fix worked for me:

sudoedit /etc/pulse/daemon.conf

and insert:

default-fragment-size-msec = 5

Try launching it as:

PULSE_LATENCY_MSEC=90 skypeforlinux

It worked for me.

Source: https://winaero.com/blog/fix-broken-sound-skype-linux-8-x/