Patent ID: 8638951

Claim:
An electronic apparatus comprising: a microphone array with at least: a first pressure microphone that generates a first wideband electrical audio signal in response to incoming sound waves, and a second pressure microphone that generates a second wideband electrical audio signal in response to the incoming sound waves; a crossover with at least: a first low-pass filter to generate a first low band signal comprising low frequency components of the first wideband electrical audio signal, a first high-pass filter to generate a first high band signal comprising high frequency components of the first wideband electrical audio signal, a second low-pass filter to generate a second low band signal comprising low frequency components of the second wideband electrical audio signal, and a second high-pass filter to generate a second high band signal comprising high frequency components of the second wideband electrical audio signal; a beamformer module with at least: a first correction filter to correct phase delay in the first low band signal to generate a first low band delayed signal, a second correction filter to correct phase delay in the second low band signal to generate a second low band delayed signal, a first summer module designed to sum the first low band signal and the second low band delayed signal to generate a first low band beamformed signal, and a second summer module designed to sum the second low band signal and the first low band delayed signal to generate a second low band beamformed signal; and a combiner module designed to combine the high band signals and the low band beamformed signals to generate modified wideband audio signals.