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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.
DTS Audio at a glance
DTS Audio
DTS belongs to the same home-cinema and optical-disc era that made branded surround formats part of the consumer media experience rather than purely studio technology.
Format comparison
| Feature | AU | DTS Audio |
|---|---|---|
| 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 | 1993 |
| Inventor | Sun Microsystems | Digital Theater Systems (now Xperi) |
| 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 | 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 DTS Audio
- capture ingest
- editing and mastering
- streaming or playback delivery
- Strong surround-sound heritage.
FAQs
Why convert AU to DTS Audio?
Choose DTS Audio as target when convert to DTS when the destination is a surround-sound playback chain, disc-authoring workflow, or home-theater distribution path that expects DTS-compatible multi-channel audio.
What changes when converting AU to DTS Audio?
Convert to DTS when the destination is a surround-sound playback chain, disc-authoring workflow, or home-theater distribution path that expects DTS-compatible multi-channel audio. It is most useful for packaged entertainment delivery and legacy compatibility rather than casual stereo listening.
What should I review after converting AU to DTS Audio?
After conversion, review these destination checks: Open converted output in home-theater players and verify behavior on real samples; Compare output against the expected depends quality profile; Less attractive as a new general-purpose standalone file target.
How can I keep quality stable in AU to DTS Audio conversion?
Run representative samples, keep settings deterministic, and monitor these risks: Closely tied to specific playback and distribution ecosystems; Less attractive as a new general-purpose standalone file target; Validate destination compatibility before large-batch conversion.