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AC3 to UMX - Online Audio Converter
Convert AC3 to UMX online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
Convert AC3 to UMX
Drop AC3 audio here or click to select
AC3
UMX (UMX)
About AC3 to UMX
Convert AC3 to UMX. AC3 (Dolby Digital) carries 5.1 surround on DVDs and broadcasts. UMX wraps tracker music for Unreal-engine game levels. Game containers may bundle several songs; convert each separately..
Why convert AC3 to UMX?
- Tiny files with UMX note events (no audio samples).
- Keep quality where supported.
- Private, no upload - runs in your browser.
AC3 vs UMX
| Codec | AC-3 | UMX |
|---|---|---|
| Compression | lossy | sequence |
| Sample behavior | Quality set by bitrate | Note events - no audio samples |
| Typical use | AC3 (Dolby Digital) carries 5.1 surround on DVDs and broadcasts. | UMX wraps tracker music for Unreal-engine game levels. |
When not to convert AC3 to UMX
- Skip UMX for recorded sound: it stores note events, not audio, so keep the AC3 recording.
- Keep a master copy: repeated exports stack small losses, so archive AC3 before batch UMX shares.
Limits
Starting point: AC3 - AC3 (Dolby Digital) carries 5.1 surround on DVDs and broadcasts. Downmix choices change loudness; check levels after conversion. Game containers may bundle several songs; convert each separately. Encode UMX (UMX) from AC3 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 AC3 to UMX?
Drop your AC3 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.