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AMR to WMA Lossless - Online Audio Converter
Convert AMR to WMA Lossless online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
Convert AMR to WMA Lossless
Drop AMR audio here or click to select
AMR
WMA Lossless (WMA Lossless)
About AMR to WMA Lossless
Convert AMR to WMA Lossless. AMR encodes narrowband speech for GSM calls at 12.2 kbps and below. WMA Lossless packs CD audio bit-for-bit inside Windows Media. Few non-Windows players open it; convert FLAC for sharing..
Why convert AMR to WMA Lossless?
- Larger files than lossy shares with WMA Lossless lossless quality.
- Keep quality where supported.
- Private, no upload - runs in your browser.
AMR vs WMA Lossless
| Codec | AMR-NB | WMA Lossless |
|---|---|---|
| Compression | lossy | lossless |
| Sample behavior | Quality set by bitrate | Full quality kept |
| Typical use | AMR encodes narrowband speech for GSM calls at 12.2 kbps and below. | WMA Lossless packs CD audio bit-for-bit inside Windows Media. |
When not to convert AMR to WMA Lossless
- Skip WMA Lossless for the smallest share: lossless output stays large, so prefer a lossy target when sending AMR files.
- Keep a master copy: repeated exports stack small losses, so archive AMR before batch WMA Lossless 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. Few non-Windows players open it; convert FLAC for sharing. Encode WMA Lossless (WMA Lossless) 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 Lossless?
Drop your AMR file onto this page, choose quality and codec settings, then click Convert. The result downloads as WMA Lossless instantly. All processing runs in your browser.
What codec is used for WMA Lossless?
The default codec for WMA Lossless is WMA Lossless. 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.