1. An apparatus for vocal-cord signal recognition, comprising: a signal processing unit which receives a vocal cord signal and digitalizes the vocal cord signal; a noise removing unit which removes channel noise included in the vocal cord signal, the noise removing unit to calculate an average cepstrum of a predetermined mute section of the vocal cord signal, and to subtract the average cepstrum from a cepstrum of each frame of the vocal cord signal; a feature extracting unit which extracts a feature vector from the vocal cord signal, which has the channel noise removed therefrom; and a recognizing unit which calculates a similarity between the vocal cord signal and a learned model parameter.