New techniques for automatic speaker verification
A. E. Rosenberg, M. R. Sambur · IEEE Transactions on Acoustics Speech and Signal Processing · 1975
An interactive automatic speaker verification system 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 indicates that verification error rate is approximately 1 percent with respect to casual impostors and 4 percent with respect to well-trained mimics.