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QCP to UMX - Online Audio Converter
Convert QCP to UMX online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
Convert QCP to UMX
Drop QCP audio here or click to select
QCP
UMX (UMX)
About QCP to UMX
Convert QCP to UMX. QCP wraps QCELP voice memos from CDMA handsets. UMX wraps tracker music for Unreal-engine game levels. Game containers may bundle several songs; convert each separately..
Why convert QCP to UMX?
- Tiny files with UMX note events (no audio samples).
- Keep quality where supported.
- Private, no upload - runs in your browser.
QCP vs UMX
| Codec | QCP | UMX |
|---|---|---|
| Compression | lossy | sequence |
| Sample behavior | Quality set by bitrate | Note events - no audio samples |
| Typical use | QCP wraps QCELP voice memos from CDMA handsets. | UMX wraps tracker music for Unreal-engine game levels. |
When not to convert QCP to UMX
- Skip UMX for recorded sound: it stores note events, not audio, so keep the QCP recording.
- Keep a master copy: repeated exports stack small losses, so archive QCP before batch UMX shares.
Limits
Starting point: QCP - QCP wraps QCELP voice memos from CDMA handsets. Same payload as QCELP under the handset file name. Game containers may bundle several songs; convert each separately. Encode UMX (UMX) from QCP 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 QCP to UMX?
Drop your QCP 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.