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From
To
AAC at a glance
AAC
—
AU at a glance
AU
—
Format comparison
| Feature | AAC | AU |
|---|---|---|
| File type | Audio | Audio |
| Status | active | active |
| Primary use cases |
|
|
| Multitrack support | Not supported | Not supported |
| HDR support | Not supported | Not supported |
| Streaming ready | Supported | Not supported |
When to use each format
When to use AAC
- Your source file is already in AAC.
- Preserve source expectations before exporting to AU.
- AAC is commonly used in audio workflows.
When to use AU
- Your target workflow expects AU.
- Improve delivery compatibility with AU.
- AU is commonly used in audio workflows.
FAQs
Why convert AAC to AU?
This conversion is usually chosen when AU fits downstream audio delivery better.
What changes when converting AAC to AU?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to AU removes streaming delivery.
What should I review after converting AAC to AU?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.