audio problems in fc 6

["Manu G.V" <ajeet3047@xxxxxxxxx>]

hi,
    when I try this command 
$cat "file name" > /dev/dsp 
   I don't get any beep sound and there were no errors even. I don't understand(Iam an end user) what is the problem. I installed torcs and tried all audio options but there was no sound. I was told to try above command to find whether my audio worked properly or not. I thought if there is no beep sound then there is some problem with audio. Is  there any relationship between the above command and problem with the sound in torcs. I have "nVidia Corporation MCP51 High Definition Audio" device.
I would be really thankful if anyone can tell me what is the problem and suggest a solution for it.


-- 
manu