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MTM to ADPCM - Online Audio Converter
Convert MTM to ADPCM online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
Convert MTM to ADPCM
Drop MTM audio here or click to select
MTM
ADPCM (ADPCM)
About MTM to ADPCM
Convert MTM to ADPCM. MTM (MultiTracker) sequences 32-channel DOS-era compositions. ADPCM predicts samples to quarter voice-band bitrates. Variants differ by vendor, so confirm the flavor before converting..
Why convert MTM to ADPCM?
- Smaller files with ADPCM lossy compression.
- Keep quality where supported.
- Private, no upload - runs in your browser.
MTM vs ADPCM
| Codec | MTM | ADPCM |
|---|---|---|
| Compression | sequence | lossy |
| Sample behavior | Note events - no audio samples | Quality set by bitrate |
| Typical use | MTM (MultiTracker) sequences 32-channel DOS-era compositions. | ADPCM predicts samples to quarter voice-band bitrates. |
When not to convert MTM to ADPCM
- Skip ADPCM for archival masters: lossy compression discards detail, so keep the MTM original.
- Keep a master copy: repeated exports stack small losses, so archive MTM before batch ADPCM shares.
Limits
Starting point: MTM - MTM (MultiTracker) sequences 32-channel DOS-era compositions. Old 32-channel layouts may fold down; check the mix. Variants differ by vendor, so confirm the flavor before converting. Encode ADPCM (ADPCM) 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.
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FAQ
How do I convert MTM to ADPCM?
Drop your MTM file onto this page, choose quality and codec settings, then click Convert. The result downloads as ADPCM instantly. All processing runs in your browser.
What codec is used for ADPCM?
The default codec for ADPCM is ADPCM. 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.