(Ubuntu 21.04) RPi4 audio is slow and crackling

[Hedda Frauk]

I'm using a Raspberry Pi 4. After updating from Ubuntu 20.10 to 21.04, I noticed audio problems.
The sound is slow and crackling.

I'm using the headphone jack and the config.txt option:
dtparam=audio=on

If I start a video or audio file in VLC player and select the VLC options:
Audio:
Output module: ALSA Audio Output
Device: bcm2835 Headphones, bcm2835 Headphones Default Audio Device

Then the playback speed seems to be normal but the "electric" crackling in voices remains.
And system-wide the problem persists, too.

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

To change the source package that this bug is filed about visit https://bugs.launchpad.net/ubuntu/+bug/1926906/+editstatus and add the package name in the text box next to the word Package.

[This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.]

[Hedda Frauk (heddi98)]

I've tested this workaround and the sound is now normal:
https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1899962