QtAudioDeviceManager should be reviewed for its suitability for its current use cases, and refactored accordingly. A study of the code prompted at least the following questions:

• Is there obsolete code we can remove?
  • AAudio migration has possibly left some code obsolete.
  • For possible audio code still in use, can we utilize AAudio instead?
• Should we increase the scope of supported device types?
  • Adding new device types such as additional bluetooth profiles, or multichannel groups.
  • Each new addition should be reviewed for use case and testing capacity.
• When should a Qt application set the audio mode?
  • Is this conflicting with AAudio parameters?
• What is our support for using multiple devices?
  • Using mismatching inputs and outputs together?
  • Any possible limitations should be documented.
• What is expected/required when audio devices are updated?
  • Logic when devices are disconnected/reconnected should be same as with other platforms.