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UMX to GSM - Online Audio Converter
Convert UMX to GSM online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
Convert UMX to GSM
Drop UMX audio here or click to select
UMX
GSM (GSM)
About UMX to GSM
Convert UMX to GSM. UMX wraps tracker music for Unreal-engine game levels. GSM 06.10 encodes European mobile speech at 13 kbps. Carrier framing can offset timing; verify duration..
Why convert UMX to GSM?
- Smaller files with GSM lossy compression.
- Keep quality where supported.
- Private, no upload - runs in your browser.
UMX vs GSM
| Codec | UMX | GSM |
|---|---|---|
| Compression | sequence | lossy |
| Sample behavior | Note events - no audio samples | Quality set by bitrate |
| Typical use | UMX wraps tracker music for Unreal-engine game levels. | GSM 06.10 encodes European mobile speech at 13 kbps. |
When not to convert UMX to GSM
- Skip GSM for archival masters: lossy compression discards detail, so keep the UMX original.
- Keep a master copy: repeated exports stack small losses, so archive UMX before batch GSM shares.
Limits
Starting point: UMX - UMX wraps tracker music for Unreal-engine game levels. Game containers may bundle several songs; convert each separately. Carrier framing can offset timing; verify duration. Encode GSM (GSM) from UMX 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 UMX to GSM?
Drop your UMX 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.