An Improved System for Automatic Speaker Verification
A. E. Rosenberg, M. R. Sambur · The Journal of the Acoustical Society of America · 1974
The interactive automatic speaker verification system described by Lummis [“Implementation of an On-Line Speaker Verification Scheme,” J. Acoust. Soc. Am. 52, 181(A) (1972)] has been augmented to include linear prediction parameters in addition to the already existing pitch and intensity analysis of sentence-long utterances. This improved system has been evaluated on a new and enlarged speaker population. A method for selecting optimum speaker-dependent features has been incorporated in this system which significantly improves its performance. The evaluation indicated that the verification error rate was less than 1% with respect to casual impostors and less than 4% with respect to well-trained mimics.