Hmm.. puzzling. I found a mistake that I made.. I left out a directory. I uploaded my .PCM file to the /drive0/var/tts directory but was trying to execute it from the /drive0/var directory. The file did not exist where the script was looking.

I can type in the correct command in Hyperterminal and it will play, but at a super fast speed (sounds like a fly buzzing almost) and you cannot understand it. I guess I encoded the sound file wrong?? It plays just fine under CoolEdit.