asterisk users - May 2007 - additional volume added to sound on CONSOLE/dsp

Is there anyway to add additional volume gain
the console/dsp port?

I have used the mixer settings to set my volume on the soundcard to like 
80 percent (I have even gone higher).
However I still need some additional volume when speaking to the 
console/dsp.

With SOX I can do a "-v X" on files and this helps when I play the
file
over  the console/dsp.
However, how can I add additional gain to "live voice"?

Is there some way to put sox in the middle of the sound going to 
console/dsp?

THanks for the suggestions.

Jerry