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AU at a glance
AU
AU belongs to an earlier multimedia era where workstation and Unix vendors often had their own practical audio defaults.
WV at a glance
WV
WavPack grew as part of the broader ecosystem of enthusiast and archival audio formats that competed on transparency, efficiency, and workflow philosophy rather than raw mass-market distribution.
Format comparison
| Feature | AU | WV |
|---|---|---|
| File type | Audio | Audio |
| Extensions |
|
|
| MIME type |
|
|
| Compression / quality | depends | depends |
| File size characteristics | medium | medium |
| Compatibility | broad | broad |
| Editability | limited | limited |
| Created year | 1987 | 1998 |
| Inventor | Sun Microsystems | David Bryant / WavPack project |
| Status | active | active |
| Primary use cases |
|
|
| Common software |
|
|
| Archival suitability | moderate | moderate |
| Metadata handling | moderate | moderate |
| Delivery profile | strong | strong |
| Workflow fit | delivery | delivery |
| Multitrack support | Not supported | Not supported |
| HDR support | Not supported | Not supported |
| Streaming ready | Not supported | Not supported |
When to use each format
When to use AU
- capture ingest
- editing and mastering
- streaming or playback delivery
- Historically important in Unix/workstation audio.
When to use WV
- capture ingest
- editing and mastering
- streaming or playback delivery
- Interesting archival and enthusiast value proposition.
FAQs
Why convert AU to WV?
Choose WV as target when you need lossless audio in a WavPack-based environment, especially for personal archives, high-resolution collections, or workflows that may later use hybrid/correction features.
What changes when converting AU to WV?
Convert to WV when you need lossless audio in a WavPack-based environment, especially for personal archives, high-resolution collections, or workflows that may later use hybrid/correction features. It is appropriate when technical efficiency and exact fidelity matter more than broad casual playback support. For widest lossless compatibility, FLAC is usually the easier default.
What should I review after converting AU to WV?
After conversion, review these destination checks: Open converted output in WavPack tools and verify behavior on real samples; Compare output against the expected depends quality profile; Niche compared with FLAC or WAV.
How can I keep quality stable in AU to WV conversion?
Run representative samples, keep settings deterministic, and monitor these risks: Less likely to be supported by mainstream consumer apps by default; Niche compared with FLAC or WAV; Validate destination compatibility before large-batch conversion.