Using cat and echo

[james collins]

Hello,
My question is a little off topic so feel free to respond privately. I  
was wondering why when I use the cat or echo command with my  
doubletalk speech synthesizer I don't get audio output? I am pretty  
sure my synthesizer my USB to serial adaptor and it's driver are all  
working because I have gotten audio output from speech synthesizer. Do  
I need to set up anything with my computer like setting the speed to  
9600 baud in order to have the cat or echo command work? Any help  
would be appreciated.

Sent from my iPhone