PURPOSE: To provide a speech equipment such as a telephone equipment and an interphone equipment, etc., by which it is unnecessary to limit an object voice to the utterance contents learned in advance, at the time of recognizing a speaker.

CONSTITUTION: At the time of recognizing a speaker by using a neural network, in a speaker recognizing part of the answer message switching speech equipment, the sequence of a vector for showing a rough form of a spectirum is inputted for a short period, the sequence of a network output is integrated by the sum, the product, the majority, etc., of the result of recognition by each output and one result of recognition is obtained, and the number of learning data of the network is curtailed by clustering.