Sound / Audio doesn't work in Processing 4.4.1 using snap on Ubuntu 22.04

[Luke2642]

Most appropriate sub-area of Processing 4?

Build process, IO

Processing version

4.4.1

Operating system

Ubuntu 22.04

Steps to reproduce this

I'm no expert but I think I've found why the sound won't work, despite pulseaudio, alsa and lib java audio etc all working perfectly on my computer.

In the terminal, run "snap connections processing":

Interface Plug Slot Notes
desktop processing:desktop :desktop -
desktop-legacy processing:desktop-legacy :desktop-legacy -
home processing:home :home -
network processing:network :network -
opengl processing:opengl :opengl -
wayland processing:wayland :wayland -
x11 processing:x11 :x11 -

There is nothing for audio. Thus, when you add the sound library, it can't escape the snap environment and always fails to play or detect the mic.

snippet

import processing.sound.*;

void setup() {
  Sound.list();
}

Additional context

"PortAudio is not supported on this operating system/architecture"
"Sound library: Didn't find any output devices with the default driver, trying PortAudio..."

pavucontrol works fine, but processing never appears as an application.

During the debug process I've also run:

sudo apt install portaudio19-dev libportaudio2 libasound-dev
sudo apt install libpulse-java
sudo apt install pulseaudio-utils
pulseaudio --start

And restarted etc, no change.

Would you like to work on the issue?

no

[Luke2642]

Update: Running the portable version instead of the snap doesn't error.

[Stefterv]

Hi @Luke2642 I've added a pr that should hopefully grant these permissions in the future.