[Bug]: The sound doesn't work on MacBook Pro M4

[kuznet1]

Version

7.2.6

Host OS Type

macOS

Host OS name + version

macOS Tahoe 26.3.1 (25D2128)

Host Architecture

ARM

Guest OS Type

Linux

Guest Architecture

ARM

Guest OS name + version

Ubuntu 24.04.4 LTS Desktop

Component

Audio

What happened?

The sound output doesn't work, but sometimes it can stutter endlessly. Sound input also doesn't work. I encountered this on installed Debian, but it also reproduces on Ubuntu Live CD.

How can we reproduce this?

1. Download Ubuntu arm64 Live CD
2. Create VM with this iso image, disable unattended installation. It is not necessary to create a virtual hard disk
3. Start VM, select "Try or install Ubuntu"
4. Click on right top corner and proceed to sound settings
5. Click "Test"
6. There is no sound, or it stutter, or VM hangs up
7. If enable sound input to VM, it doesn't work too
   VBox.log

Did you upload all of your necessary log files, screenshots, etc.?

• Yes, I've uploaded all pertinent files to this issue.