VOICE SECTION DETECTION DEVICE, VOICE RECOGNITION DEVICE, VOICE SECTION DETECTION METHOD, AND PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a voice section detection technology capable of detecting a voice of a main speaker with high accuracy, with respect to a voice digital signal in which voices of a plurality of speakers including the main speaker and other speakers are mixed through a single microphone, in an actual environment including sound reverberation.SOLUTION: A voice section detection device includes: a reverberation estimation unit that estimates a reverberation component included in a voice digital signal to acquire a reverberation signal; and a unit for detecting a section of each speaker, that detects at least one of a main speaker voice section and a voice section other than the main speaker voice section on the basis of the reverberation signal.