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MTM to ALAC (M4A) - Online Audio Converter

Convert MTM to ALAC (M4A) online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.

[+] Drop MTM audio here or click to select MTM
ALAC (M4A) (ALAC)

About MTM to ALAC (M4A)

Convert MTM to ALAC (M4A). MTM (MultiTracker) sequences 32-channel DOS-era compositions. ALAC is Apple's lossless codec stored inside M4A files. Stays bit-identical to WAV while tagging like AAC..

Why convert MTM to ALAC (M4A)?

MTM vs ALAC (M4A)

CodecMTMALAC
Compressionsequencelossless
Sample behaviorNote events - no audio samplesFull quality kept
Typical useMTM (MultiTracker) sequences 32-channel DOS-era compositions.ALAC is Apple's lossless codec stored inside M4A files.

When not to convert MTM to ALAC (M4A)

Limits

Starting point: MTM - MTM (MultiTracker) sequences 32-channel DOS-era compositions. Old 32-channel layouts may fold down; check the mix. Stays bit-identical to WAV while tagging like AAC. Encode ALAC (M4A) (ALAC) from MTM at 256k for music or 128k for speech, starting from the master.

How conversion works

Conversion runs entirely in your browser with FFmpeg WASM. Files never leave your device.

Related conversions

How do I convert MTM to ALAC (M4A)?
Drop your MTM file onto this page, choose quality and codec settings, then click Convert. The result downloads as ALAC (M4A) instantly. All processing runs in your browser.
What codec is used for ALAC (M4A)?
The default codec for ALAC (M4A) is ALAC. You can change audio parameters in Advanced mode.
How do you store my files?
We do not store any processed audio. All conversion happens entirely in your browser using FFmpeg WASM.