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

${color}[#676767](**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.