.au audio format

I need to run some small audio clips with a JAVA applet, which requires .au format in 8-bit 8000 Hz mono.

What common tools, or freeware are available to convert .wav or MP3 to .au? I can’t find this in the software I have around.

apparently Goldwave and SOX can do it.
http://www.webdeveloper.com/drweb/970519-drwebsite.html
http://sox.sourceforge.net/

I found those too. Most everything out there only coverts from .au. Adobe bought up the one and it costs $300. :eek:

I did find that my Total Recorder will save in this format, so I can record them and re-save.