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Speex to AMR - Online Audio Converter
Convert Speex to AMR online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
Convert Speex to AMR
Drop Speex audio here or click to select
Speex, OGG
AMR (AMR-NB)
About Speex to AMR
Convert Speex to AMR. Speex compresses speech at telecom bitrates for voice apps. 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 Speex to AMR?
- Smaller files with AMR lossy compression.
- Keep quality where supported.
- Private, no upload - runs in your browser.
Speex vs AMR
| Codec | Speex | AMR-NB |
|---|---|---|
| Compression | lossy | lossy |
| Sample behavior | Quality set by bitrate | Quality set by bitrate |
| Typical use | Speex compresses speech at telecom bitrates for voice apps. | AMR encodes narrowband speech for GSM calls at 12.2 kbps and below. |
When not to convert Speex to AMR
- Skip AMR for archival masters: lossy compression discards detail, so keep the Speex original.
- Keep a master copy: repeated exports stack small losses, so archive Speex before batch AMR shares.
Limits
Starting point: Speex - Speex compresses speech at telecom bitrates for voice apps. Wideband modes confuse old tools; verify rate after conversion. Tuned for voice calls, so music loses detail by design. Encode AMR (AMR-NB) from Speex 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 Speex to AMR?
Drop your Speex 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.