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CELT to UMX - Online Audio Converter
Convert CELT to UMX online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
Convert CELT to UMX
Drop CELT audio here or click to select
CELT
UMX (UMX)
About CELT to UMX
Convert CELT to UMX. CELT is the low-delay music layer later merged into Opus. UMX wraps tracker music for Unreal-engine game levels. Game containers may bundle several songs; convert each separately..
Why convert CELT to UMX?
- Tiny files with UMX note events (no audio samples).
- Keep quality where supported.
- Private, no upload - runs in your browser.
CELT vs UMX
| Codec | CELT | UMX |
|---|---|---|
| Compression | lossy | sequence |
| Sample behavior | Quality set by bitrate | Note events - no audio samples |
| Typical use | CELT is the low-delay music layer later merged into Opus. | UMX wraps tracker music for Unreal-engine game levels. |
When not to convert CELT to UMX
- Skip UMX for recorded sound: it stores note events, not audio, so keep the CELT recording.
- Keep a master copy: repeated exports stack small losses, so archive CELT before batch UMX shares.
Limits
Starting point: CELT - CELT is the low-delay music layer later merged into Opus. Stand-alone files are rare; prefer Opus targets. Game containers may bundle several songs; convert each separately. Encode UMX (UMX) from CELT 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 CELT to UMX?
Drop your CELT file onto this page, choose quality and codec settings, then click Convert. The result downloads as UMX instantly. All processing runs in your browser.
What codec is used for UMX?
The default codec for UMX is UMX. 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.