Convert M4A to MP2

Turn M4A recordings into MP2. Encoded as MPEG-1 Audio Layer II at 192 kbit/s or the allowed rate nearest audio.bitrate and at 32, 44.1 or 48 kHz in mono or stereo, unless audio.sample_rate or audio.channels say otherwise, and AAC audio loses a little more than it already had.

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Drop M4A files on the dialor turn it to pick what to do

M4A and MP2

From

M4A Audio

AAC audio in an MP4 container. What Apple Music and iTunes use.

Extensions: .m4a
MIME type: audio/mp4
Kind: Audio

To

MP2 Audio

MPEG audio layer II, the sound of DVDs, DAB radio and broadcast.

Extensions: .mp2
MIME type: audio/mpeg
Kind: Audio

Options for M4A to MP2

audio.bitrate: Audio bitrate in kbit/s.
audio.channels: Number of audio channels. 1 is mono, 2 is stereo.
audio.denoise: Reduce steady background noise.
audio.normalize: Normalize loudness to -16 LUFS as streaming services do.
audio.sample_rate: Audio sample rate in Hz.
speed: Playback speed multiplier. 2 plays twice as fast.
trim_end: Second at which the audio or video stops.
trim_start: Seconds to cut from the start of audio or video.