No audio/sound at all in snap version

[geekley]

Describe the bug
Audio does not play at all on the snap version of codium. It plays normally on the flathub version.

Please confirm that this problem is VSCodium-specific

• This bug doesn't happen in the flathub version of Microsoft's Visual Studio Code either.
• I don't know if it happens in the snap version of MS VSCode (I won't install it) but some issues seem to indicate it happens:
  • Playing audio gives no sound in VS Code microsoft/vscode#179385
  • Playing audio file does not work microsoft/vscode#229786.

Please confirm that the issue/resolution isn't already documented

• I checked the Docs page and the Troubleshooting page and my issue is not mentioned there.

To Reproduce
Just open some music file e.g. .mp3, .ogg in the IDE and click play in the widget.

Alternatively, open the developer tools and paste this in the console to play a beep:

const audioContext = new AudioContext();
const oscillator = audioContext.createOscillator();
oscillator.type = 'sine';
oscillator.frequency.value = 440;
oscillator.connect(audioContext.destination);
oscillator.start();
setTimeout(() => { oscillator.stop(); }, 1000);

Expected behavior
You get audio normally (music or the beep).

Desktop (please complete the following information):

• OS: Kubuntu 24.04
• Architecture: x64
• Version: 1.96.2
• App Manager: Snap
• Sandboxed: no? Snap was installed with --classic

Additional context

$ snap connections codium
# shows nothing

$ snap info codium
name:      codium
summary:   Code editing. Redefined.
publisher: VSCodium
store-url: https://snapcraft.io/codium
contact:   https://github.com/VSCodium/vscodium/issues
license:   unset
description: |
  Binary releases of Visual Studio Code without branding/telemetry/licensing
commands:
  - codium
  - codium.url-handler
snap-id:      lIZWXTqmo6LFSts5Cgk2VPlNwtysZAeH
tracking:     latest/stable
refresh-date: 9 days ago, at 14:21 -03
channels:
  latest/stable:    1.96.2.24355 2024-12-21 (436) 321MB classic
  latest/candidate: ^                                   
  latest/beta:      ^                                   
  latest/edge:      1.95.3.24321 2024-11-16 (428) 320MB classic
installed:          1.96.2.24355            (436) 321MB classic

[daiyam]

I thinks it's a permission issue.

Have you tried snap connect codium:audio-playback?

It seems like it would need the following in the snapcraft.yaml:

apps:
  codium:
    plugs:
      - audio-playback

[geekley]

I think I can't even try it without the changes in snapcraft, unless there's another way?

$ sudo snap connect codium:audio-playback
error: snap "codium" has no plug named "audio-playback"