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CROSS-FORMAT
HEVC/H.265 to AU Converter — Free, Online, No Signup
Convert HEVC/H.265 files to AU online with no signup required.
HEVC/H.265 at a glance
HEVC/H.265
The Joint Collaborative Team on Video Coding developed HEVC through ITU-T VCEG and ISO MPEG, building on H.264 coding tools while introducing 64×64 coding tree units, advanced motion compensation, and scalable/multiview extensions.
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 | HEVC/H.265 | AU |
|---|---|---|
| File type | Video | Audio |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 2013 | 1987 |
| Inventor | Joint Collaborative Team on Video Coding (JCT-VC) — ITU-T and ISO/IEC | Sun Microsystems |
| Status | active | active |
| Primary use cases |
|
|
| Multitrack support | Not supported | Not supported |
| HDR support | Supported | Not supported |
| Streaming ready | Supported | Not supported |
When to use each format
When to use HEVC/H.265
- Your source file is already in HEVC/H.265.
- Preserve source expectations before exporting to AU.
- HEVC/H.265 is commonly used in video 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 HEVC/H.265 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 HEVC/H.265 to AU?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to AU removes HDR content. Moving to AU removes streaming delivery.
What should I review after converting HEVC/H.265 to AU?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.