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AU to SILK - Online Audio Converter
Convert AU to SILK online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
Convert AU to SILK
Drop AU audio here or click to select
AU
SILK (SILK)
About AU to SILK
Convert AU to SILK. AU is Sun's simple container, usually holding 8 kHz telephony audio. SILK is Skype's speech codec for voice calls. Raw captures may lack headers; verify rate after conversion..
Why convert AU to SILK?
- Smaller files with SILK lossy compression.
- Keep quality where supported.
- Private, no upload - runs in your browser.
AU vs SILK
| Codec | PCM 16-bit | SILK |
|---|---|---|
| Compression | uncompressed | lossy |
| Sample behavior | Full quality kept | Quality set by bitrate |
| Typical use | AU is Sun's simple container, usually holding 8 kHz telephony audio. | SILK is Skype's speech codec for voice calls. |
When not to convert AU to SILK
- Skip SILK for archival masters: lossy compression discards detail, so keep the AU original.
- Keep a master copy: repeated exports stack small losses, so archive AU before batch SILK shares.
Limits
Starting point: AU - AU is Sun's simple container, usually holding 8 kHz telephony audio. Headers are minimal; verify sample rate after conversion. Raw captures may lack headers; verify rate after conversion. Encode SILK (SILK) from AU 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 AU to SILK?
Drop your AU file onto this page, choose quality and codec settings, then click Convert. The result downloads as SILK instantly. All processing runs in your browser.
What codec is used for SILK?
The default codec for SILK is SILK. 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.