SIGNAL SEPARATION DEVICE AND SIGNAL SEPARATION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a signal separation device and a signal separation method, capable of solving a permutation problem and separating user speech to be extracted.

SOLUTION: The signal separation device 10 separates a specific speech signal and a noise signal from an input sound signal. A joint probability density distribution estimating section 241 of a permutation solution section 24 first calculates each joint probability density distribution of a separation signal. Then, a clustering determining section 242 of the permutation solution section 24 determines clustering based on a shape of the calculated joint probability density distribution.

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