Patent ID: 9197975
Filing Date: 2015-11-24
Classification: G10L,H04R

Abstract:
1. A computer-implemented method for detecting wind noise, comprising the steps of: receiving a plurality of signals from a microphone array; in a first computer process, decomposing the signals into frequency sub-band signals; in a second computer process, determining time dependent measures for the signals based on the frequency sub-band signals; in a third computer process, evaluating a predetermined criterion function using the time dependent measures, producing a criterion result that determines if wind noise is present within the signals; and in a fourth computer process, using results of the evaluating to detect the wind noise according to a predetermined threshold, wherein the criterion function is a variance of the time dependent measure, and wherein the time dependent measure is determined as a function of the signal powers of the sub-band signals, and the variance is determined from a mean of the signal powers for detecting the wind noise.