FIELD: speech analysis. SUBSTANCE: invention refers specifically to systems limiting unauthorized access to material or information resources based on biometric information on speaker. Technical result of invention consists in usage of combination of segment indicators of vectors of formants and statistic characteristics of speech signal of pronunciation of password as whole in the capacity of parametric description of speech signal and in utilization of nonstandard non-Euclidean measure of proximity when formant vectors of two individual segments are compared with consistent its usage for determination of statistic similarity of formant structures of speech signal of compared pronunciations on basis of search for best approximation. EFFECT: enhanced authenticity of identification of announcers in presence of noise and use of low-quality microphones. 21 cl, 11 dwg
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