APPARATUS AND METHOD FOR VOICE ACTIVITY DETECTION BASED ON PROBABILISTIC NON-NEGATIVE MATRIX FACTORIZATION

摘要

The present invention relates to voice detection and, more specifically, to an apparatus and method for statistically detecting voice based on probabilistic non-negative matrix factorization. The apparatus comprises: a conversion unit; a base vector estimation unit estimating a base vector for voice and noise; a base vector estimator estimating the base vector from a modeled noise and voice signal; a code vector estimation unit; and a control unit.