Patent ID: 7764634

Claim:
One or more computer-readable storage media storing instructions that, when executed on a processor, perform acts for reducing audio feedback in a voice data communications application, the acts comprising: recognizing a frequency range in an audio signal from which the audio feedback results from an input system of a computer system re-capturing the audio signal generated by an output system of the computer system that was previously captured by the input system, the recognizing comprising: monitoring characteristics of the audio signal; identifying the frequency range according to the characteristics of the audio signal that indicate a presence or likelihood of feedback, the characteristics comprising a magnitude outside a predetermined range; and at least partially suppressing the audio signal in the frequency range to prevent the input system from re-capturing the audio signal output from the output device in the frequency range, wherein the audio signal is suppressed in the frequency range by: identifying at least one data bit in a digital representation of the audio signal representing content of the audio signal within the frequency range; and disregarding the at least one data bit in the digital representation of the audio signal to suppress the content of the audio signal in the frequency range.