[CM] sox and snd headers

[Bill Schottstaedt]

 > Sox complains about invalid headers with the mus-next files.

Was it something like this?

   /home/bil/cl/ sox test.snd test.wav
   sox: Failed reading test.snd: Unsupported encoding in Sun/NeXT header.
   Only U-law, signed bytes, signed words, and ADPCM are supported.

This is a sox bug.  Float output in Next/Sun files has been standard
for at least 15 years.  They even include it in their code:
see sox/au.c.