Sixth International Conference on Spoken Language Processing
(ICSLP 2000)

Beijing, China
October 16-20, 2000

Imposture Using Synthetic Speech Against Speaker Verification Based on Spectrum and Pitch

Takashi Masuko (1), Keiichi Tokuda (2), Takao Kobayashi (1)

(1) Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology, Yokohama, Japan
(2) Department of Computer Science, Nagoya Institute of Technology, Japan

This paper describes security of speaker verification systems against imposture using synthetic speech. We propose a text-prompted speaker verification technique which utilizes pitch information in addition to spectral information, and investigate whether synthetic speech is rejected. Experimental results show that pitch information is not necessarily useful for rejection of synthetic speech, and it is required to develop techniques to discriminate synthetic speech from natural speech.

Full Paper

Bibliographic reference.  Masuko, Takashi / Tokuda, Keiichi / Kobayashi, Takao (2000): "Imposture using synthetic speech against speaker verification based on spectrum and pitch", In ICSLP-2000, vol.2, 302-305.