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AUDIO
MOS to AU Converter — Free, Online, No Signup
Convert MOS files to AU online with no signup required.
MOS at a glance
MOS
Convert MOS files with ConverterHQ using workflows tuned for image compatibility, predictable output, and practical downstream use.
Category
Image
Extensions
.mos
MIME types
image/mos
Created
2003
Inventor
Leaf (now Phase One)
Status
proprietary
AU at a glance
AU
Convert AU files with ConverterHQ using workflows tuned for audio compatibility, predictable output, and practical downstream use.
Category
Audio
Extensions
.au
MIME types
audio/basic
Created
1987
Inventor
Sun Microsystems
Status
active
Format comparison
| Feature | MOS | AU |
|---|---|---|
| File type | Image | Audio |
| Extensions |
|
|
| MIME type |
|
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| Created year | 2003 | 1987 |
| Inventor | Leaf (now Phase One) | Sun Microsystems |
| Status | proprietary | active |
| Primary use cases |
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| HDR support | Not supported | Not supported |
| Streaming ready | Not supported | Not supported |
When to use each format
When to use MOS
- Your source file is already in MOS.
- Preserve source expectations before exporting to AU.
- MOS 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 MOS 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 MOS to AU?
This conversion changes how the format behaves in downstream tools and delivery environments.
What should I review after converting MOS to AU?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.