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QCP to AMR - Online Audio Converter
Convert QCP to AMR online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
Convert QCP to AMR
Drop QCP audio here or click to select
QCP
AMR (AMR-NB)
About QCP to AMR
Convert QCP to AMR. QCP wraps QCELP voice memos from CDMA handsets. AMR encodes narrowband speech for GSM calls at 12.2 kbps and below. Tuned for voice calls, so music loses detail by design..
Why convert QCP to AMR?
- Smaller files with AMR lossy compression.
- Keep quality where supported.
- Private, no upload - runs in your browser.
QCP vs AMR
| Codec | QCP | AMR-NB |
|---|---|---|
| Compression | lossy | lossy |
| Sample behavior | Quality set by bitrate | Quality set by bitrate |
| Typical use | QCP wraps QCELP voice memos from CDMA handsets. | AMR encodes narrowband speech for GSM calls at 12.2 kbps and below. |
When not to convert QCP to AMR
- Skip AMR 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 AMR shares.
Limits
Starting point: QCP - QCP wraps QCELP voice memos from CDMA handsets. Same payload as QCELP under the handset file name. Tuned for voice calls, so music loses detail by design. Encode AMR (AMR-NB) 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 AMR?
Drop your QCP file onto this page, choose quality and codec settings, then click Convert. The result downloads as AMR instantly. All processing runs in your browser.
What codec is used for AMR?
The default codec for AMR is AMR-NB. 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.