TIME DELAY ESTIMATION APPARATUS AND TIME DELAY ESTIMATION METHOD THEREFOR

摘要

The present invention relates to a time delay estimation apparatus. The time delay estimation apparatus of the present invention comprises: an acoustic signal detection unit for detecting acoustic signals through a plurality of microphones; a frequency domain conversion unit for converting the detected acoustic signals into signals of a frequency domain; and a time delay estimation unit for estimating a time delay on the basis of a slope of a phase difference between the acoustic signals converted into the frequency domain.