Default audio settings can be non-functional

[Krzmbrzl]

Description

When freshly installing Mumble, Mumble somehow selects an audio backend to use and also an input and an output device that it will try to use.
However, the defaults chosen for this are by no means guaranteed to work.

Steps to reproduce

Freshly install Mumble or delete the settings file (and backup) so Mumble needs to initialize its settings from scratch (including audio backend and audio input/output devices).

Mumble version

All

Mumble component

Client

OS

Other

Reproducible?

Yes

Additional information

Ideally, we should have some sort of check in place to see whether the currently selected devices and backends can be used at all.

For the audio backend this could be as simple as checking whether initializing that backend as even succesful.

For audio devices, this is likely more tricky. The correct thing to do would likely be to interface with the OS in some way to query the default input and default output device that it is currently using. Ideally, just using whatever is configured in the OS would be its own option (that works and keeps in sync with the OS).

Related issues:

• Default audio device selection doesn't work on macOS #6545
• [W10] Default output peripheral doesn't match OS one and does not work #6630

Relevant log output

No response

Screenshots

No response