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AU to DSD (DSF) - Online Audio Converter
Convert AU to DSD (DSF) online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
Convert AU to DSD (DSF)
Drop AU audio here or click to select
AU
DSD (DSF) (PCM 16-bit)
About AU to DSD (DSF)
Convert AU to DSD (DSF). AU is Sun's simple container, usually holding 8 kHz telephony audio. DSD (DSF) is the 1-bit Super Audio CD format at 2.8 MHz sampling. Playback needs compatible DACs; convert PCM for portable use..
Why convert AU to DSD (DSF)?
- Larger files than lossy shares with DSD (DSF) lossless 1-bit quality.
- Keep quality where supported.
- Private, no upload - runs in your browser.
AU vs DSD (DSF)
| Codec | PCM 16-bit | PCM 16-bit |
|---|---|---|
| Compression | uncompressed | lossless 1-bit |
| Sample behavior | Full quality kept | Full quality kept |
| Typical use | AU is Sun's simple container, usually holding 8 kHz telephony audio. | DSD (DSF) is the 1-bit Super Audio CD format at 2.8 MHz sampling. |
When not to convert AU to DSD (DSF)
- Skip DSD (DSF) for the smallest share: lossless output stays large, so prefer a lossy target when sending AU files.
- Keep a master copy: repeated exports stack small losses, so archive AU before batch DSD (DSF) 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. Playback needs compatible DACs; convert PCM for portable use. Encode DSD (DSF) (PCM 16-bit) 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 DSD (DSF)?
Drop your AU file onto this page, choose quality and codec settings, then click Convert. The result downloads as DSD (DSF) instantly. All processing runs in your browser.
What codec is used for DSD (DSF)?
The default codec for DSD (DSF) 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.