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MTM to GSM - Online Audio Converter
Convert MTM to GSM online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
Convert MTM to GSM
Drop MTM audio here or click to select
MTM
GSM (GSM)
About MTM to GSM
Convert MTM to GSM. MTM (MultiTracker) sequences 32-channel DOS-era compositions. GSM 06.10 encodes European mobile speech at 13 kbps. Carrier framing can offset timing; verify duration..
Why convert MTM to GSM?
- Smaller files with GSM lossy compression.
- Keep quality where supported.
- Private, no upload - runs in your browser.
MTM vs GSM
| Codec | MTM | GSM |
|---|---|---|
| Compression | sequence | lossy |
| Sample behavior | Note events - no audio samples | Quality set by bitrate |
| Typical use | MTM (MultiTracker) sequences 32-channel DOS-era compositions. | GSM 06.10 encodes European mobile speech at 13 kbps. |
When not to convert MTM to GSM
- Skip GSM 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 GSM shares.
Limits
Starting point: MTM - MTM (MultiTracker) sequences 32-channel DOS-era compositions. Old 32-channel layouts may fold down; check the mix. Carrier framing can offset timing; verify duration. Encode GSM (GSM) 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 GSM?
Drop your MTM file onto this page, choose quality and codec settings, then click Convert. The result downloads as GSM instantly. All processing runs in your browser.
What codec is used for GSM?
The default codec for GSM is GSM. 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.