All Tools
[ audio bench ]
PCM to UMX - Online Audio Converter
Convert PCM to UMX online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
Convert PCM to UMX
Drop PCM audio here or click to select
PCM
UMX (UMX)
About PCM to UMX
Convert PCM to UMX. PCM is raw pulse-code samples with no container or headers. UMX wraps tracker music for Unreal-engine game levels. Game containers may bundle several songs; convert each separately..
Why convert PCM to UMX?
- Tiny files with UMX note events (no audio samples).
- Keep quality where supported.
- Private, no upload - runs in your browser.
PCM vs UMX
| Codec | PCM 16-bit | UMX |
|---|---|---|
| Compression | uncompressed | sequence |
| Sample behavior | Full quality kept | Note events - no audio samples |
| Typical use | PCM is raw pulse-code samples with no container or headers. | UMX wraps tracker music for Unreal-engine game levels. |
When not to convert PCM to UMX
- Skip UMX for recorded sound: it stores note events, not audio, so keep the PCM recording.
- Keep a master copy: repeated exports stack small losses, so archive PCM before batch UMX shares.
Limits
Starting point: PCM - PCM is raw pulse-code samples with no container or headers. Sample rate and width must be set by hand since headers carry none. Game containers may bundle several songs; convert each separately. Encode UMX (UMX) from PCM 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 PCM to UMX?
Drop your PCM 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.