MASK CALCULATION DEVICE, CLUSTER WEIGHT LEARNING DEVICE, MASK CALCULATION NEURAL NETWORK LEARNING DEVICE, MASK CALCULATION METHOD, CLUSTER WEIGHT LEARNING METHOD, AND MASK CALCULATION NEURAL NETWORK LEARNING METHOD

摘要

A cluster weight calculator calculates weights corresponding to respective clusters in a mask calculation NN with at least one of the layers divided into the clusters, based on the signals of speech of a target speaker using a cluster weight calculation NN. A mask calculator calculates a mask for extracting features of speech of the target speaker from features in observed speech signals of one or more speakers based on the features in the observation signals of the speech of the one or more speakers using the mask calculator NN weighted by the weights calculated by the cluster weight calculator.