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GSM to XM - Online Audio Converter
Convert GSM to XM online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
Convert GSM to XM
Drop GSM audio here or click to select
GSM
XM (XM)
About GSM to XM
Convert GSM to XM. GSM 06.10 encodes European mobile speech at 13 kbps. XM (FastTracker 2) sequences 32 instruments with envelopes. Volume-column effects vary by engine; audition the render..
Why convert GSM to XM?
- Tiny files with XM note events (no audio samples).
- Keep quality where supported.
- Private, no upload - runs in your browser.
GSM vs XM
| Codec | GSM | XM |
|---|---|---|
| Compression | lossy | sequence |
| Sample behavior | Quality set by bitrate | Note events - no audio samples |
| Typical use | GSM 06.10 encodes European mobile speech at 13 kbps. | XM (FastTracker 2) sequences 32 instruments with envelopes. |
When not to convert GSM to XM
- Skip XM for recorded sound: it stores note events, not audio, so keep the GSM recording.
- Keep a master copy: repeated exports stack small losses, so archive GSM before batch XM shares.
Limits
Starting point: GSM - GSM 06.10 encodes European mobile speech at 13 kbps. Carrier framing can offset timing; verify duration. Volume-column effects vary by engine; audition the render. Encode XM (XM) from GSM 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 GSM to XM?
Drop your GSM file onto this page, choose quality and codec settings, then click Convert. The result downloads as XM instantly. All processing runs in your browser.
What codec is used for XM?
The default codec for XM is XM. 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.