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WMA to AU - Online Audio Converter
Convert WMA to AU online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
Convert WMA to AU
Drop WMA audio here or click to select
WMA
AU (PCM 16-bit)
About WMA to AU
Convert WMA to AU. WMA is Microsoft's audio codec paired with Windows Media workflows. AU is Sun's simple container, usually holding 8 kHz telephony audio. Headers are minimal; verify sample rate after conversion..
Why convert WMA to AU?
- Larger files than lossy shares with AU uncompressed quality.
- Keep quality where supported.
- Private, no upload - runs in your browser.
WMA vs AU
| Codec | WMA v2 | PCM 16-bit |
|---|---|---|
| Compression | lossy | uncompressed |
| Sample behavior | Quality set by bitrate | Full quality kept |
| Typical use | WMA is Microsoft's audio codec paired with Windows Media workflows. | AU is Sun's simple container, usually holding 8 kHz telephony audio. |
When not to convert WMA to AU
- Skip AU for the smallest share: lossless output stays large, so prefer a lossy target when sending WMA files.
- Keep a master copy: repeated exports stack small losses, so archive WMA before batch AU shares.
Limits
Starting point: WMA - WMA is Microsoft's audio codec paired with Windows Media workflows. Copy-protected store files cannot be converted; use DRM-free sources. Headers are minimal; verify sample rate after conversion. Encode AU (PCM 16-bit) from WMA 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 WMA to AU?
Drop your WMA file onto this page, choose quality and codec settings, then click Convert. The result downloads as AU instantly. All processing runs in your browser.
What codec is used for AU?
The default codec for AU is PCM 16-bit. 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.