1. A method for suppressing receiver audio regeneration, comprising the steps of: receiving a communication signal; at a Radio Frequency (RF) unit, demodulating the communication signal to an audio signal; monitoring a volume level of the audio signal; shifting a pitch of the audio signal when the volume level reaches a predetermined threshold to produce a pitch shifted audio signal, wherein an amount of pitch-shifting of the audio signal is a function of the volume level; and playing the pitch-shifted audio signal out of a speaker to produce a pitch-shifted acoustic signal; wherein the amount of pitch-shifting applied to the audio signal produces a pitch-shifted acoustic signal with signal properties suppressing regeneration of the acoustic signal onto the audio signal at the RF unit.