Patent ID: 7450693

Claim:
A method for improving the quality of a voice signal on a transparent audio telecommunication channel, comprising: analyzing the voice signal in an analyzer for useable band width and mid-range frequency, the useable bandwidth and mid-range frequency defining the audio spectrum of the voice signal, and further analyzing the amplitude of the signal; generating a plurality of control signals based on the analysis of the voice signal in the analyzer including a bandwidth control signal based on the useable bandwidth of the voice signal and a signal containing information as to the mid-range frequency of the voice signal; and utilizing the plurality of control signals to adjust the audio telecommunication channel in defined time intervals, the step of adjustment including using the bandwidth control signal and mid-range frequency control signal to control a band pass filter that passes the voice signal to adjust the bandwidth and mid-range frequency of the telecommunication channel to the audio spectrum of the voice signal to thereby suppress environmental noise outside of the useable audio bandwidth spectrum of the voice signal and to improve the quality of the voice signal being transmitted.