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AU to RealAudio - Online Audio Converter
Convert AU to RealAudio online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
Convert AU to RealAudio
Drop AU audio here or click to select
AU
RealAudio (RealAudio)
About AU to RealAudio
Convert AU to RealAudio. AU is Sun's simple container, usually holding 8 kHz telephony audio. RealAudio streams speech and music from the RealPlayer era. Cook and ATRAC flavors differ; confirm before converting..
Why convert AU to RealAudio?
- Smaller files with RealAudio lossy compression.
- Keep quality where supported.
- Private, no upload - runs in your browser.
AU vs RealAudio
| Codec | PCM 16-bit | RealAudio |
|---|---|---|
| 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. | RealAudio streams speech and music from the RealPlayer era. |
When not to convert AU to RealAudio
- Skip RealAudio 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 RealAudio 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. Cook and ATRAC flavors differ; confirm before converting. Encode RealAudio (RealAudio) 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 RealAudio?
Drop your AU file onto this page, choose quality and codec settings, then click Convert. The result downloads as RealAudio instantly. All processing runs in your browser.
What codec is used for RealAudio?
The default codec for RealAudio is RealAudio. 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.