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MTM to QCELP - Online Audio Converter
Convert MTM to QCELP online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
Convert MTM to QCELP
Drop MTM audio here or click to select
MTM
QCELP (QCELP)
About MTM to QCELP
Convert MTM to QCELP. MTM (MultiTracker) sequences 32-channel DOS-era compositions. QCELP compresses CDMA voice near 8 kbps like EVRC. Carrier variants differ; check headers before converting..
Why convert MTM to QCELP?
- Smaller files with QCELP lossy compression.
- Keep quality where supported.
- Private, no upload - runs in your browser.
MTM vs QCELP
| Codec | MTM | QCELP |
|---|---|---|
| Compression | sequence | lossy |
| Sample behavior | Note events - no audio samples | Quality set by bitrate |
| Typical use | MTM (MultiTracker) sequences 32-channel DOS-era compositions. | QCELP compresses CDMA voice near 8 kbps like EVRC. |
When not to convert MTM to QCELP
- Skip QCELP 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 QCELP shares.
Limits
Starting point: MTM - MTM (MultiTracker) sequences 32-channel DOS-era compositions. Old 32-channel layouts may fold down; check the mix. Carrier variants differ; check headers before converting. Encode QCELP (QCELP) 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 QCELP?
Drop your MTM file onto this page, choose quality and codec settings, then click Convert. The result downloads as QCELP instantly. All processing runs in your browser.
What codec is used for QCELP?
The default codec for QCELP is QCELP. 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.