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AMR to CAF - Online Audio Converter
Convert AMR to CAF online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
Convert AMR to CAF
Drop AMR audio here or click to select
AMR
CAF (PCM 16-bit)
About AMR to CAF
Convert AMR to CAF. AMR encodes narrowband speech for GSM calls at 12.2 kbps and below. CAF is Apple's 64-bit container for large recordings beyond WAV limits. Few Windows tools open it; convert WAV for sharing..
Why convert AMR to CAF?
- Larger files than lossy shares with CAF uncompressed quality.
- Keep quality where supported.
- Private, no upload - runs in your browser.
AMR vs CAF
| Codec | AMR-NB | PCM 16-bit |
|---|---|---|
| Compression | lossy | uncompressed |
| Sample behavior | Quality set by bitrate | Full quality kept |
| Typical use | AMR encodes narrowband speech for GSM calls at 12.2 kbps and below. | CAF is Apple's 64-bit container for large recordings beyond WAV limits. |
When not to convert AMR to CAF
- Skip CAF for the smallest share: lossless output stays large, so prefer a lossy target when sending AMR files.
- Keep a master copy: repeated exports stack small losses, so archive AMR before batch CAF shares.
Limits
Starting point: AMR - AMR encodes narrowband speech for GSM calls at 12.2 kbps and below. Tuned for voice calls, so music loses detail by design. Few Windows tools open it; convert WAV for sharing. Encode CAF (PCM 16-bit) from AMR 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 AMR to CAF?
Drop your AMR file onto this page, choose quality and codec settings, then click Convert. The result downloads as CAF instantly. All processing runs in your browser.
What codec is used for CAF?
The default codec for CAF 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.