SPEAKER DIRECTION DETECTING CIRCUIT AND SPEAKER DIRECTION DETECTING METHOD USED IN THE CIRCUIT

摘要: PROBLEM TO BE SOLVED: To provide a speech signals direction detecting circuit which reduces possibility of making maldetetion even through generated from the other than are superimposed on voice and increases detection stability. SOLUTION: Signals microphone 1 2 temporarily accumulated in memory circuits 4 6, supplied to cross correlation computing 7, computations conducted values computed for every time difference. An evaluation function 8 conducts summing processes certain based values, retrieves maximum value computes differences. microphones 3 5 9 10 addition A position 11 obtains horizontal vertical directions these differences (delays).