Spatial Processing of Broadband Signals Using Speech Messages as Examples

Abstract

This study is aimed at extracting the speech signal from a certain spatial point with maximum signal-to-noise ratio if interference is caused by other speech sources and the signals are recorded by an array of multipositional omnidirectional microphones. It is proved that the joint use of the algorithms for introducing exact time delays and forming optimal weight coefficients of the microphones considerably increases the useful-signal power compared with the interference power.