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MIDI to UMX - Online Audio Converter
Convert MIDI to UMX online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
Convert MIDI to UMX
Drop MIDI audio here or click to select
MIDI
UMX (UMX)
About MIDI to UMX
Convert MIDI to UMX. MID files store note events with no audio of their own. UMX wraps tracker music for Unreal-engine game levels. Game containers may bundle several songs; convert each separately..
Why convert MIDI to UMX?
- Tiny files with UMX note events (no audio samples).
- Keep quality where supported.
- Private, no upload - runs in your browser.
MIDI vs UMX
| Codec | MIDI | UMX |
|---|---|---|
| Compression | sequence | sequence |
| Sample behavior | Note events - no audio samples | Note events - no audio samples |
| Typical use | MID files store note events with no audio of their own. | UMX wraps tracker music for Unreal-engine game levels. |
When not to convert MIDI to UMX
- Skip UMX for recorded sound: it stores note events, not audio, so keep the MIDI recording.
- Keep a master copy: repeated exports stack small losses, so archive MIDI before batch UMX shares.
Limits
Starting point: MIDI - MID files store note events with no audio of their own. Rendering needs a soundfont, which sets the final timbre. Game containers may bundle several songs; convert each separately. Encode UMX (UMX) from MIDI 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.
Related conversions
FAQ
How do I convert MIDI to UMX?
Drop your MIDI 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.