Discrimination Method of Synthetic Speech Using Pitch Frequency against Synthetic Speech Falsification(Biometrics)(<Special Section>Cryptography and Information Security)

概要

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We propose discrimination method of synthetic speech using pitch pattern of speech signal. By applying the proposed synthetic speech discrimination system as pre-process before the conventional HMM speaker verification system, we can improve the safety of conventional speaker verification system against imposture using synthetic speech. The proposed method distinguishes between synthetic speech and natural speech according to the pitch pattern which is distribution of value of normalized short-range autocorrelation function. We performed the experiment of user verification, and confirmed the validity of the proposed method.
社団法人電子情報通信学会の論文
2005-01-01