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QCP to AU - Online Audio Converter
Convert QCP to AU online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
Convert QCP to AU
Drop QCP audio here or click to select
QCP
AU (PCM 16-bit)
About QCP to AU
Convert QCP to AU. QCP wraps QCELP voice memos from CDMA handsets. AU is Sun's simple container, usually holding 8 kHz telephony audio. Headers are minimal; verify sample rate after conversion..
Why convert QCP to AU?
- Larger files than lossy shares with AU uncompressed quality.
- Keep quality where supported.
- Private, no upload - runs in your browser.
QCP vs AU
| Codec | QCP | PCM 16-bit |
|---|---|---|
| Compression | lossy | uncompressed |
| Sample behavior | Quality set by bitrate | Full quality kept |
| Typical use | QCP wraps QCELP voice memos from CDMA handsets. | AU is Sun's simple container, usually holding 8 kHz telephony audio. |
When not to convert QCP to AU
- Skip AU for the smallest share: lossless output stays large, so prefer a lossy target when sending QCP files.
- Keep a master copy: repeated exports stack small losses, so archive QCP before batch AU shares.
Limits
Starting point: QCP - QCP wraps QCELP voice memos from CDMA handsets. Same payload as QCELP under the handset file name. Headers are minimal; verify sample rate after conversion. Encode AU (PCM 16-bit) 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 AU?
Drop your QCP file onto this page, choose quality and codec settings, then click Convert. The result downloads as AU instantly. All processing runs in your browser.
What codec is used for AU?
The default codec for AU is PCM 16-bit. 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.