How to convert WMV to AU
- Add your .WMV 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
- The video track is removed; AU holds audio only.
- AU is frequently 8-bit mu-law, a low-fidelity profile, so expect reduced audio quality versus the WMV source.
- Metadata such as tags does not carry into the simple AU header.
Frequently asked questions
What do I get when I convert WMV to AU?
AU is an audio-only Sun/NeXT format, so the video is discarded and only the sound is kept. The audio is written as a simple headered stream, commonly 8-bit mu-law or PCM.
Why convert WMV to AU?
AU is the classic Unix system-sound format and is useful for legacy Unix, Solaris, or Java environments that expect it. It is a simple, widely readable container for basic audio needs.
How is the audio quality?
AU is often 8-bit mu-law, which is low fidelity by modern standards, so converting from WMV to that profile can noticeably reduce quality. If AU is written as PCM it can be higher quality, but this is still a lossy re-encode from the WMV source.
Where does an AU file play?
AU opens in VLC and Audacity on any platform, and it is recognizable by the ".snd" magic bytes at the start of the file. For modern devices, MP3 or WAV is more convenient.
