AMR to WMA Voice - Online Audio Converter
Convert AMR to WMA Voice online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
About AMR to WMA Voice
Convert AMR to WMA Voice. AMR encodes narrowband speech for GSM calls at 12.2 kbps and below. WMA Voice targets speech down to 4 kbps for voice recorders. Voices stay clear while music thins out; choose music codecs for songs..
Why convert AMR to WMA Voice?
- Smaller files with WMA Voice lossy compression.
- Keep quality where supported.
- Private, no upload - runs in your browser.
AMR vs WMA Voice
| Codec | AMR-NB | WMA Voice |
|---|---|---|
| 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. | WMA Voice targets speech down to 4 kbps for voice recorders. |
When not to convert AMR to WMA Voice
- Skip WMA Voice 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 WMA Voice 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. Voices stay clear while music thins out; choose music codecs for songs. Encode WMA Voice (WMA Voice) 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.