Impact of the Level of Noise and Echo on the Reaction Time of Listeners in the Perception of Logatoms

The article presents the results of research regarding the impact of the degree of distortion and noise of the logatom (nonsense word) on the listener's reaction time. The study aimed to determine the maximum reaction time of listeners, which will allow determining the time after which the logatom will be exposed in the speech quality assessment method with an alternative choice. The research was carried out with the participation of a group of ten students. A strong relationship between the results obtained and the concentration of the listeners was found, as well as the effect of fatigue, training, and the gender of the listener. The obtained results indicate that in the method with an alternative choice before the logatom emission should appear 1.1 s initial sequence, which will eliminate the situation when the listeners did not recognize the initial phoneme transmitted from the logatom.