Patent ID: 7340068

Claim:
Device for detecting the presence of wind noise in an array of microphones comprising two or more separate sound inlet openings, and a sound to electrical converting element or microphone in relation to each sound inlet opening, where the microphones generates each their time dependant signals and where said signals are fed to a signal processing device which provides one or more output signals where the signal processing device has means for generating a first time dependant correlation signal composed of cross correlation function values between a first and a second microphone signal and, means for generating a second time dependant correlation signal composed of auto correlation function values of either the first or the second of the microphone signals, wherein the signal processing device has means for comparing the values of the first and the second correlation signal and the means for comparing are arranged to detect a condition when the second correlation signal value is higher than the first correlation signal value, whereby said condition is indicative of the presence of wind noise, and wherein the means for comparing the first correlation function with the second correlation function are arranged to determine that wind noise is present whenever the mean value of the second correlation function is more than 1.5 times larger than the mean value of the first correlation function.