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AMR to WMA Pro - Online Audio Converter
Convert AMR to WMA Pro online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
Convert AMR to WMA Pro
Drop AMR audio here or click to select
AMR
WMA Pro (WMA Pro)
About AMR to WMA Pro
Convert AMR to WMA Pro. AMR encodes narrowband speech for GSM calls at 12.2 kbps and below. WMA Pro adds multichannel surround and higher resolutions to WMA. Surround mixes fold down to stereo on most converters..
Why convert AMR to WMA Pro?
- Smaller files with WMA Pro lossy compression.
- Keep quality where supported.
- Private, no upload - runs in your browser.
AMR vs WMA Pro
| Codec | AMR-NB | WMA Pro |
|---|---|---|
| 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 Pro adds multichannel surround and higher resolutions to WMA. |
When not to convert AMR to WMA Pro
- Skip WMA Pro 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 Pro 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. Surround mixes fold down to stereo on most converters. Encode WMA Pro (WMA Pro) 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 WMA Pro?
Drop your AMR file onto this page, choose quality and codec settings, then click Convert. The result downloads as WMA Pro instantly. All processing runs in your browser.
What codec is used for WMA Pro?
The default codec for WMA Pro is WMA Pro. 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.