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PCM to AMR - Online Audio Converter
Convert PCM to AMR online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
Convert PCM to AMR
Drop PCM audio here or click to select
PCM
AMR (AMR-NB)
About PCM to AMR
Convert PCM to AMR. PCM is raw pulse-code samples with no container or headers. 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 PCM to AMR?
- Smaller files with AMR lossy compression.
- Keep quality where supported.
- Private, no upload - runs in your browser.
PCM vs AMR
| Codec | PCM 16-bit | AMR-NB |
|---|---|---|
| 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. | AMR encodes narrowband speech for GSM calls at 12.2 kbps and below. |
When not to convert PCM to AMR
- Skip AMR 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 AMR 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. Tuned for voice calls, so music loses detail by design. Encode AMR (AMR-NB) 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 AMR?
Drop your PCM 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.