Setup: I have a Heil PR-40 microphone which inputs to a USB interface, made by M-Audio, called FastTrack. Along with podcasting, I like to use the mic for making phone calls using my Vonage software phone called "Vonage Companion." Problem: The microphone is very bassy. It seems that some VOIP networks are using some kind of bandpass resulting in very poor quality phone calls. Question: I'm wondering if there is some way to modify the output of the microphone to accentuate the mids and highs to my voice isn't so bassy. Is there some kind of software equalizer I can use to pull this off? I tried passing my mic output through GarageBand and then to Soundflower and then input that to my software phone but didn't have any luck getting it to modify my voice. Any other ideas? Thanks.