Stereo recording

[Anderhar]

Checklist

• I made sure that there are no existing issues - open or closed - to which I could contribute my information.
• I made sure that there are no existing discussions - open or closed - to which I could contribute my information.
• I have read the FAQs inside the app (Menu -> About -> FAQs) and my problem isn't listed.
• I have taken the time to fill in all the required details. I understand that the request will be dismissed otherwise.
• This issue contains only one feature request.
• I have read and understood the contribution guidelines.

Feature description

Every proper recording app must be able to take advantage of multiple microphones to achieve realistic bi-natural sound.
For example, Audio Recorder by Dimowner and the LineageOS's build-in recorder (in H/Q mode) can do this, while this app has an inherited inability to record stereo.

Why do you want this feature?

Besides the obvious reasons, because Audio Recorder by Dimowner and the LineageOS's recorder have other disadvantages.

Additional information

No response

This would be amazing, also the ability to select which microphone to use (raw/processed/camcorder)
These 2 reasons is why I have to use recording studio (https://github.com/Leonidius20/RecordingStudio), if fossify voice had stereo recording and mic selection, it'd be amazing, also .wav lossless recording would be a nice bonus 😄