How to convert AIFF to AU
- Add your .AIFF file - drop it in the box above or click to browse.
- Convert it to .AU in a few seconds.
- Download your new .AU file.
What to expect
- AU traditionally defaults to 8-bit u-law encoding - verify your converter writes linear PCM to avoid quality loss.
- AIFF markers, loop points, and instrument chunks are dropped during conversion; AU has no equivalent fields for them.
- File size stays roughly the same since neither AIFF nor AU compresses the audio data.
Frequently asked questions
Does AIFF to AU conversion lose quality?
Not if the AU file uses linear PCM at the same bit depth and sample rate as the source. Quality degrades only when the output encoding is 8-bit u-law.
Why would I need the AU format?
AU is mainly used in legacy Unix environments, Sun and NeXT systems, and Java audio code via the
sun.audio API. Modern applications rarely require it.Will AIFF metadata survive the conversion?
No - AU has no support for markers, loop points, or instrument chunks, so only the raw audio stream is preserved.
Is AU a good format for sharing audio?
No - AU has very limited modern support. For sharing or archiving,
WAV or FLAC is a better choice.Programs that convert AIFF: VIP Video Converter · Freemake Video Converter · Tiny Audio Converter · Audacity · Audacity for Mac · Audacity for Linux
