WAV to AU Converter
Reformat WAV audio as Sun/NeXT AU format online
Unix Audio Standard
Convert WAV to AU for seamless audio integration on Unix, Solaris, and Java-based platforms.
Cross-Platform Bridge
Bridge the gap between Windows WAV and Unix AU — both store PCM audio, just in different containers.
Cloud Conversion
The WAV to AU reformatting runs entirely on our servers — no Unix tools needed on your Windows or Mac machine.
How to convert WAV to AU
Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.
Choose au or any other format you need as a result (more than 200 formats supported)
Let the file convert and you can download your au file right afterwards
About formats
Frequently Asked Questions
AU is the native audio format on Unix and Solaris. Java applications use AU for multimedia, and legacy Unix systems often expect audio in this format.
SoX, Audacity, VLC, and native audio tools on Unix/Linux systems play AU. Java multimedia APIs read AU natively.
AU can store both uncompressed PCM and mu-law compressed audio. The choice depends on your target platform requirements.
Both can hold PCM audio. AU originates from Sun/NeXT and uses big-endian byte order. WAV is from Microsoft and uses little-endian.
Upload a batch of WAV files and produce AU versions for each in a single session — efficient for Unix system audio deployment.