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UMX to AMR - Online Audio Converter
Convert UMX to AMR online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
Convert UMX to AMR
Drop UMX audio here or click to select
UMX
AMR (AMR-NB)
About UMX to AMR
Convert UMX to AMR. UMX wraps tracker music for Unreal-engine game levels. AMR encodes narrowband speech for GSM calls at 12.2 kbps and below. Tuned for voice calls, so music loses detail by design..
Why convert UMX to AMR?
- Smaller files with AMR lossy compression.
- Keep quality where supported.
- Private, no upload - runs in your browser.
UMX vs AMR
| Codec | UMX | AMR-NB |
|---|---|---|
| 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. | AMR encodes narrowband speech for GSM calls at 12.2 kbps and below. |
When not to convert UMX to AMR
- Skip AMR 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 AMR shares.
Limits
Starting point: UMX - UMX wraps tracker music for Unreal-engine game levels. Game containers may bundle several songs; convert each separately. Tuned for voice calls, so music loses detail by design. Encode AMR (AMR-NB) 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 AMR?
Drop your UMX file onto this page, choose quality and codec settings, then click Convert. The result downloads as AMR instantly. All processing runs in your browser.
What codec is used for AMR?
The default codec for AMR is AMR-NB. 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.