Hello everyone, I recently started UTM instead of Virtualbox to run Ubuntu 25.04 Plucky puffin ARM64 version on an M1 Pro Macbook Pro with 16GB of Ram.
I was very impressed how fast Ubuntu runs on UTM, and was going to use it as my main way to use Linux apart from one problem- all audio crackled when viewing content such as youtube.
I thought it was a sample rate mismatch issue, so was trying to figure out how to change the sample rate in Ubuntu itself, until I remembered the Audio midi setup on MacOS which I have used for my production and sound engineering background.
I checked, and I was set at 44,100 Hz, instead of 48,000 Hz, as soon as I changed to 48,000 Hz the crackling went away, and I can use Ubuntu fully now as I intend too.
I thought this might help some people if they are trying to run Ubuntu on apple silicon, it is a very simple fix and hope it helps someone else.