All Tools
[ audio bench ]
WAV to AU - Online Audio Converter
Convert WAV to AU online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
Convert WAV to AU
Drop WAV audio here or click to select
WAV
AU (PCM 16-bit)
About WAV to AU
Convert WAV to AU. WAV is Microsoft's RIFF container, usually holding 16-bit PCM. AU is Sun's simple container, usually holding 8 kHz telephony audio. Headers are minimal; verify sample rate after conversion..
Why convert WAV to AU?
- Larger files than lossy shares with AU uncompressed quality.
- Keep quality where supported.
- Private, no upload - runs in your browser.
WAV vs AU
| Codec | PCM 16-bit | PCM 16-bit |
|---|---|---|
| Compression | uncompressed | uncompressed |
| Sample behavior | Full quality kept | Full quality kept |
| Typical use | WAV is Microsoft's RIFF container, usually holding 16-bit PCM. | AU is Sun's simple container, usually holding 8 kHz telephony audio. |
When not to convert WAV to AU
- Skip AU for the smallest share: lossless output stays large, so prefer a lossy target when sending WAV files.
- Keep a master copy: repeated exports stack small losses, so archive WAV before batch AU shares.
Limits
Starting point: WAV - 16-bit PCM near 10 MB per minute. Files run about 10 MB per minute, so archive as FLAC. Headers are minimal; verify sample rate after conversion. Encode AU (PCM 16-bit) from WAV 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.
Related conversions
FAQ
How do I convert WAV to AU?
Drop your WAV 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.