Research And Application Of Time Perception In Speech Interaction Feedback Experience

As an important field of artificial intelligence development and application,speech interaction has brought great convenience to human life,but there are often some interactive delay in the feedback of speech interaction.At present,the feedback time and speech rate are fixed or determined by hardware conditions in most intelligent voice interaction products,and therefore there is an increasing demand for the improvement of user experience.Based on the theory of time psychology,this research focuses on the feedback time and the speech rate in the process of waiting for the feedback of human-computer voice interaction,and proposes an optimal design scheme for the existing feedback experience of Chinese intelligent voice interactive products.The scheme is applied and verified through design practice.In this thesis,the characteristics of intelligent voice interaction products and their targeted users are analyzed firstly.The factors that affect the voice interaction experience are also summarized.In particular,the time perception factor is dissected through the evaluation of the value and mechanism of time psychology in voice interaction.Secondly,the effect of the setting of feedback time on time perception and user experience is studied.The result indicates that feedback time has influence on time perception and subjective emotion of users so the emotional experience of users may be guided by feedback time setting.On this basis,the research gives the optimal feedback time that results in best user subjective time perception and psychological experience,and defines the threshold of user's waiting time for voice interactive feedback.A model to calculate optimal feedback time is proposed through linear regression analysis.Thirdly,this research studies the influence of the speech rate on recognition efficiency,time perception and user experience experimently.The investigation indicates that the the speech rate affects the users' efficiency of recognition of feedback information and the estimation of time interval of feedback time in such a way: users underestimate the time interval when the speech rate is faster,but overestimates it when the speech rate is slower.On this basis,the research proposes an optimal range of speech rate in voice interaction.Finally,a scheme for optimal design of speech interaction is proposed and verified through practical application.This study can provide references for the design,research and development of existing Chinese intelligent voice interaction products.Meanwhile,this research may provide new ideas for the study of intelligent voice interaction,and it is helpful to designing intelligent voice interaction products with better user experience.