The Potentials of Computer Analyzing the Acoustic Characteristics of a Human Speech under Spaceflight Conditions.

The paper presents current approaches to the assessment of the psycho-physiological status of a human operator by analyzing his/her speaking and gives a historical review of an application of speech acoustic analysis in the field of military aviation and manned spaceflight as well as under conditions of on-ground model experiments. Various methods of mathematical analysis of a speech signal when determining the human emotional and functional status and techniques of noise suppression in audio recordings are also considered. The applicability of the said methods for non-invasive psycho-physiological monitoring of cosmonauts under spaceflight conditions was assessed.