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AMR to CELT - Online Audio Converter
Convert AMR to CELT online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
Convert AMR to CELT
Drop AMR audio here or click to select
AMR
CELT (CELT)
About AMR to CELT
Convert AMR to CELT. AMR encodes narrowband speech for GSM calls at 12.2 kbps and below. CELT is the low-delay music layer later merged into Opus. Stand-alone files are rare; prefer Opus targets..
Why convert AMR to CELT?
- Smaller files with CELT lossy compression.
- Keep quality where supported.
- Private, no upload - runs in your browser.
AMR vs CELT
| Codec | AMR-NB | CELT |
|---|---|---|
| Compression | lossy | lossy |
| Sample behavior | Quality set by bitrate | Quality set by bitrate |
| Typical use | AMR encodes narrowband speech for GSM calls at 12.2 kbps and below. | CELT is the low-delay music layer later merged into Opus. |
When not to convert AMR to CELT
- Skip CELT for archival masters: lossy compression discards detail, so keep the AMR original.
- Keep a master copy: repeated exports stack small losses, so archive AMR before batch CELT 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. Stand-alone files are rare; prefer Opus targets. Encode CELT (CELT) 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 CELT?
Drop your AMR file onto this page, choose quality and codec settings, then click Convert. The result downloads as CELT instantly. All processing runs in your browser.
What codec is used for CELT?
The default codec for CELT is CELT. 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.