Abstract
The article analyzes and investigates directions for improving the quality characteristics of voice authentication systems in various access systems. One of the main ways of improving the quality characteristics of these user authentication systems is related to the use of phase information of the voice signal. The urgent scientific task of researching new procedures for pre-processing the user’s voice signal of the authentication system is being solved. Refinement of pre-processing procedures was carried out, considering the use of phase data of the voice signal. The developed pre-processing procedures make it possible to reduce the impact of random errors in the user’s voice signal registration materials, which also appear due to the influence of external noise. The results are obtained in statistical analysis of simulation results using experimental voice data of the user of the authentication system. The phase space of the voice signal allows you to expand the possibilities of pre-processing due to the use of a priori information about the nature of the phase data change. The presented research results should be used in voice authentication systems, improving speech recognition systems, and solving speaker identification tasks.
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