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QCP to Opus - Online Audio Converter
Convert QCP to Opus online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
Convert QCP to Opus
Drop QCP audio here or click to select
QCP
Opus (Opus)
About QCP to Opus
Convert QCP to Opus. QCP wraps QCELP voice memos from CDMA handsets. Opus adapts from 6 kbps speech to 510 kbps music with low latency. CD-era hardware may not decode it; use MP3 for legacy players..
Why convert QCP to Opus?
- Smaller files with Opus lossy compression.
- Keep quality where supported.
- Private, no upload - runs in your browser.
QCP vs Opus
| Codec | QCP | Opus |
|---|---|---|
| Compression | lossy | lossy |
| Sample behavior | Quality set by bitrate | Quality set by bitrate |
| Typical use | QCP wraps QCELP voice memos from CDMA handsets. | Opus adapts from 6 kbps speech to 510 kbps music with low latency. |
When not to convert QCP to Opus
- Skip Opus for archival masters: lossy compression discards detail, so keep the QCP original.
- Keep a master copy: repeated exports stack small losses, so archive QCP before batch Opus shares.
Limits
Starting point: QCP - QCP wraps QCELP voice memos from CDMA handsets. Same payload as QCELP under the handset file name. CD-era hardware may not decode it; use MP3 for legacy players. Encode Opus (Opus) 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 Opus?
Drop your QCP file onto this page, choose quality and codec settings, then click Convert. The result downloads as Opus instantly. All processing runs in your browser.
What codec is used for Opus?
The default codec for Opus is Opus. 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.