Patent ID: 9407996
Filing Date: 2016-08-02
CPC Classification: H04R

Claim Text:
1. A method of operating a microphone system for processing an incident audio signal and generating a system output, the method comprising: generating a first un-delayed signal output by a first microphone, the first un-delayed signal having a first dynamic range, wherein the first dynamic range has a first noise floor and a first top-end; generating a second un-delayed signal output by a second microphone, the second un-delayed signal having a second dynamic range, wherein the second dynamic range has a second noise floor and a second top-end, and wherein the first noise floor is less than the second noise floor, the second top-end is greater than the first top end, and wherein the first dynamic range overlaps the second dynamic range; responsive to the first un-delayed signal, generating a first delayed signal, output by a first delay block and coupling the first delayed signal onto the system output using a selector, the selector responsive to the first un-delayed signal and the first delayed signal; responsive to the second un-delayed signal, generating a second delayed signal, output by a second delay block and coupling the second un-delayed signal and the second delayed signal to the selector; comparing the first un-delayed signal to a first threshold; as determined by the comparing step, using the selector, selecting to couple one of the first delayed signal and second delayed signal to the system output; and repeating the generating, comparing and selecting steps.