Convert M4A to MPC

Turn M4A recordings into Musepack. Re-encoding a lossy source loses a little more detail.

Converted in an isolated sandbox on our serversDeleted after 24 hours

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

M4A and MPC

From

M4A Audio

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

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

To

Musepack

Musepack, a lossy audio codec tuned for transparent quality at mid bitrates.

Extensions: .mpc
MIME type: audio/x-musepack
Kind: Audio

Options for M4A to MPC

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.