HTC Incredible :: Way To Disable To Voice Processing

I migrated from AT&T/iPhone due to crappy coverage, and mostly like the Incredible.However, one area that it's pretty bad is voice quality.The reception is fine.I'm talking about the processing that the phone itself does (when using the handset itself as a phone) to attempt to make the caller at the other end more clear-sounding. It cuts out background noise but is too sensitive and often makes it difficult to understand the person on the other end of the line. When I put the phone on speakerphone mode or use it with Bluetooth in my car I don't seem to have this problem.it's only when I'm using the handset itself as a phone. When I've been on a single call I've tried switching between the three in my car when stopped, and I can always hear perfectly with the speakerphone or Bluetooth.when I use the handset is does that weird cutoff thing. I work in audio for a living and it's just like a bad noise gate.