Long‐term feature averaging in voice authentication
作者:
J. D. Markel,
B. T. Oshika,
A. H. Gray,
期刊:
The Journal of the Acoustical Society of America
(AIP Available online 1976)
卷期:
Volume 60,
issue S1
页码: 13-13
ISSN:0001-4966
年代: 1976
DOI:10.1121/1.2003182
出版商: Acoustical Society of America
数据来源: AIP
摘要:
The purpose of this paper is to investigate the applicability of long‐term feature averaging as an eventual means for performing text independent voice authentication (speaker verification). Based upon a set of long‐term feature vectors, a principal component analysis is performed to obtain a normalized reference coordinate system for each speaker. Features extracted from the test speaker are transformed to this coordinate system and then the Euclidean distance is measured. It is shown thatunder a weak assumption of Gaussian statistics, the threshold necessary to attain a given probability of correct acceptance as a function of the number of dimensions or features can be theoretically calculated. Results of several preliminary experiments are presented to illustrate the technique.
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