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QCP to GSM - Online Audio Converter
Convert QCP to GSM online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
Convert QCP to GSM
Drop QCP audio here or click to select
QCP
GSM (GSM)
About QCP to GSM
Convert QCP to GSM. QCP wraps QCELP voice memos from CDMA handsets. GSM 06.10 encodes European mobile speech at 13 kbps. Carrier framing can offset timing; verify duration..
Why convert QCP to GSM?
- Smaller files with GSM lossy compression.
- Keep quality where supported.
- Private, no upload - runs in your browser.
QCP vs GSM
| Codec | QCP | GSM |
|---|---|---|
| Compression | lossy | lossy |
| Sample behavior | Quality set by bitrate | Quality set by bitrate |
| Typical use | QCP wraps QCELP voice memos from CDMA handsets. | GSM 06.10 encodes European mobile speech at 13 kbps. |
When not to convert QCP to GSM
- Skip GSM 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 GSM shares.
Limits
Starting point: QCP - QCP wraps QCELP voice memos from CDMA handsets. Same payload as QCELP under the handset file name. Carrier framing can offset timing; verify duration. Encode GSM (GSM) 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 GSM?
Drop your QCP file onto this page, choose quality and codec settings, then click Convert. The result downloads as GSM instantly. All processing runs in your browser.
What codec is used for GSM?
The default codec for GSM is GSM. 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.