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PCM to QCELP - Online Audio Converter
Convert PCM to QCELP online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
Convert PCM to QCELP
Drop PCM audio here or click to select
PCM
QCELP (QCELP)
About PCM to QCELP
Convert PCM to QCELP. PCM is raw pulse-code samples with no container or headers. QCELP compresses CDMA voice near 8 kbps like EVRC. Carrier variants differ; check headers before converting..
Why convert PCM to QCELP?
- Smaller files with QCELP lossy compression.
- Keep quality where supported.
- Private, no upload - runs in your browser.
PCM vs QCELP
| Codec | PCM 16-bit | QCELP |
|---|---|---|
| Compression | uncompressed | lossy |
| Sample behavior | Full quality kept | Quality set by bitrate |
| Typical use | PCM is raw pulse-code samples with no container or headers. | QCELP compresses CDMA voice near 8 kbps like EVRC. |
When not to convert PCM to QCELP
- Skip QCELP for archival masters: lossy compression discards detail, so keep the PCM original.
- Keep a master copy: repeated exports stack small losses, so archive PCM before batch QCELP shares.
Limits
Starting point: PCM - PCM is raw pulse-code samples with no container or headers. Sample rate and width must be set by hand since headers carry none. Carrier variants differ; check headers before converting. Encode QCELP (QCELP) from PCM 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 PCM to QCELP?
Drop your PCM file onto this page, choose quality and codec settings, then click Convert. The result downloads as QCELP instantly. All processing runs in your browser.
What codec is used for QCELP?
The default codec for QCELP is QCELP. 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.