OK, eat this, SB16 users.
The file OSOLEMIO.WRI, contained within, is an OLE demo of the Gravis
Ultra Sound soundcard.  In case you've been hiding in a cave for the last
year or so, this is the GF1-based synthesizer that shouldn't cost $120,
but it does, so hey.
To see what's wrong with your card, just double click the mike, listen
closely, then double click the reel.  This is the exact same file, mind
you, recorded using GoldWave as rendered on my GUS, and saved under ADPCM.
for more info about the GUS and why you're looking increasingly silly not
having one, mail gus-general-request@mail.orst.edu the word 'help', or 
post at comp.sys.ibm.pc.soundcard or csips.advocacy and ask for info.
Have fun,
Yossi. <lioren1@weizmann.weizmann.ac.il>
PS Mike:  Although this is called 'demo', it still belongs in the /sounds
          subdir.