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AU to S3M - Online Audio Converter
Convert AU to S3M online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
Convert AU to S3M
Drop AU audio here or click to select
AU
S3M (S3M)
About AU to S3M
Convert AU to S3M. AU is Sun's simple container, usually holding 8 kHz telephony audio. S3M (Scream Tracker 3) sequences 16 digital channels with effects. Stereo panning quirks differ by player; check the mix..
Why convert AU to S3M?
- Tiny files with S3M note events (no audio samples).
- Keep quality where supported.
- Private, no upload - runs in your browser.
AU vs S3M
| Codec | PCM 16-bit | S3M |
|---|---|---|
| Compression | uncompressed | sequence |
| Sample behavior | Full quality kept | Note events - no audio samples |
| Typical use | AU is Sun's simple container, usually holding 8 kHz telephony audio. | S3M (Scream Tracker 3) sequences 16 digital channels with effects. |
When not to convert AU to S3M
- Skip S3M for recorded sound: it stores note events, not audio, so keep the AU recording.
- Keep a master copy: repeated exports stack small losses, so archive AU before batch S3M 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. Stereo panning quirks differ by player; check the mix. Encode S3M (S3M) 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 S3M?
Drop your AU file onto this page, choose quality and codec settings, then click Convert. The result downloads as S3M instantly. All processing runs in your browser.
What codec is used for S3M?
The default codec for S3M is S3M. 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.