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AUDIO
CR3 to AU Converter — Free, Online, No Signup
Convert CR3 files to AU online with no signup required.
CR3 at a glance
CR3
CR3 marks Canon's move into a newer raw-file generation as mirrorless and later-camera workflows evolved beyond the long CR2 era.
AU at a glance
AU
AU belongs to an earlier multimedia era where workstation and Unix vendors often had their own practical audio defaults.
Format comparison
| Feature | CR3 | AU |
|---|---|---|
| File type | Image | Audio |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 2018 | 1987 |
| Inventor | Canon | Sun Microsystems |
| Status | proprietary | active |
| Primary use cases |
|
|
| HDR support | Not supported | Not supported |
| Streaming ready | Not supported | Not supported |
When to use each format
When to use CR3
- Your source file is already in CR3.
- Preserve source expectations before exporting to AU.
- CR3 is commonly used in image 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 CR3 to AU?
Convert to AU when preserving compatibility with older Unix or workstation software, educational assets, or historical multimedia archives.
In most present-day workflows the practical task is to decode AU content and move it to WAV, AIFF, or a modern compressed format.
Use AU only when downstream compatibility makes it necessary.
What changes when converting CR3 to AU?
This conversion changes how the format behaves in downstream tools and delivery environments.
What should I review after converting CR3 to AU?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.