[Linux only] Audio issue (crackling noise/echo)

This behavior refers to an audio issue caused by the newer implementation of the PulseAudio sound server that uses timer-based audio scheduling instead of the traditional, interrupt-driven approach.

To stop the behavior please disable the timer-based scheduling in Pulseaudio

To turn timer-based scheduling off add tsched=0 in /etc/pulse/default.pa:

/etc/pulse/default.pa
load-module module-udev-detect tsched=0

Then restart the PulseAudio server:

$ pulseaudio -k
$ pulseaudio --start

Do the reverse to enable timer-based scheduling, if not already enabled by default.

Updated on: 02/07/2022