Applying the phase characteristics of voice vocalisms in solving problem of protection of speech information

Abstract

At present, due to its convenience, speech technologies are gaining increasing popularity, including in relation to security systems. However, due to possible security problems, the areas in which this technology is extremely limited still remain. The aim of this work is to clarify the field of application of the phase characteristics of voice vocalisms in solving various problems of protection and processing of speech information. Methods. The methods of computer and mathematical modeling, digital processing of signals and images are used. Results. It is proposed to use the phase characteristics of speech in various applications, including security problems such as a reliable identification. Conclusion. The major characteristics of speech signals are presented. The Hilbert model of the speech signal is considered, as well as the model of the sinusoidal description of the speech signal by MacAuel and Quatieri. The areas of practical application of the phase characteristics of voice vocalisms (including the introduction of biometric information about the speaker into the phaseogram) are described.

Keywords

• voice vocalisms, speech information protection, intelligibility, speech signal, phase characteristics, sinusoidal model.