Is it possible to record high quality audio with Qt?

If I use phone built in audio recorder, the high quality version seems to be packed into .mp4 container and is actually a smaller file than the standard quality, which will be a 8000Hz wav file.

Is there a way to record the same high quality .mp4 with Qt?

Btw. Qt InputAudio sample program doesn't seem to work at all on 808.

Unfortunately not, for most devices the
frequency spectrum is limited to mic
amps built-in filter.

has you tried to use QMediaRecorder class?