Steps to reproduce

1. Set Sampling rate, bitrate, and frequency as "mono".
2. Record audio with m4a format.
3. It automatically takes "stereo" by default.

Expected behavior

It should respect the given preference output (mono).

Actual behavior

It's taking "stereo" by default regardless of your selection for "mono".

Record You version

"5.1"

Android version

Android 11

Other details

No response

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