MP4 to AU Converter - Fast & Free Online Tool
Converting from MP4 to AU is a common requirement for many users. This conversion might be necessary for compatibility with specific software, reducing file size, improving quality, or meeting platform requirements. Our online converter makes this process simple and efficient.
MP4
MP4 (MPEG-4 Part 14) is a digital multimedia container format that can store video, audio, and subtitle data, widely used for streaming and digital distribution.
MIME Type:
video/mp4
Common Uses:
Video streaming, Web video, Mobile video, Social media
Advantages:
- Excellent compression
- Wide compatibility
- Good quality to size ratio
Disadvantages:
- Lossy compression
- Patent licensing (historically)
- Not ideal for professional editing
AU
AU is an older audio file format historically associated with Sun and Unix systems. It is best for legacy system compatibility, historical audio archives, and technical workflows involving older software environments.
MIME Type:
audio/basic
Common Uses:
Legacy Unix audio files, Historical system audio archives, Older technical audio workflows
Advantages:
- Useful for compatibility with older systems
- Important in historical archive conversion
- Simple enough for some technical workflows
Disadvantages:
- Largely obsolete in modern consumer audio use
- Less efficient and less convenient than newer mainstream formats
Convert Your Files
Related Conversions
Common Conversions
Other MP4 Conversions
Why Convert MP4 to AU?
Compatibility with software that only supports AU
Different compression algorithms that may reduce file size
Different quality characteristics that may be preferable
Platform requirements (web, mobile, or desktop applications)
How to Convert MP4 to AU
- 1
Upload your MP4 file using the converter above
- 2
Verify that the output format is set to AU
- 3
Click the "Convert" button to start the conversion
- 4
Download your converted AU file when complete