Spatial correlation matrix estimation device, spatial correlation matrix estimation method, and spatial correlation matrix estimation program

摘要

In a situation where the target sound source and background noise coexist, the observation feature vector is calculated based on the observation signals recorded at different positions, the mask corresponding to the target sound source and the mask corresponding to the background noise are estimated, and the observation signal And a spatial correlation matrix of the target sound source including the background noise based on the mask corresponding to the target sound source, and a background noise spatial correlation matrix based on the mask corresponding to the observed signal and the background noise. A spatial correlation matrix of the target sound source is estimated based on a matrix obtained by weighting the spatial correlation matrix with a predetermined coefficient.