정신피로와 음성특징과의 상관관계 측정
Measuring Correlation between Mental Fatigues and Speech Features
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초록
This paper deals with how mental fatigue has an effect on human voice. For this a monotonous task to increase thefeeling of the fatigue and a set of subjective questionnaire for rating the fatigue were designed. From the experiments thedesigned task was proven to be monotonous based on the results of the questionnaire responses. To investigate a statisticalrelationship between speech features extracted from the collected speech data and fatigue, the T test for two-related-sampleswas used. Statistical analysis shows that speech parameters deeply related to the fatigue are the first formant bandwidth,Jitter, H1-H2, cepstral peak prominence, and harmonics-to-noise ratio. According to the experimental results, it can be seenthat voice is changed to be breathy as mental fatigue proceeds.
Abstract
This paper deals with how mental fatigue has an effect on human voice. For this a monotonous task to increase thefeeling of the fatigue and a set of subjective questionnaire for rating the fatigue were designed. From the experiments thedesigned task was proven to be monotonous based on the results of the questionnaire responses. To investigate a statisticalrelationship between speech features extracted from the collected speech data and fatigue, the T test for two-related-sampleswas used. Statistical analysis shows that speech parameters deeply related to the fatigue are the first formant bandwidth,Jitter, H1-H2, cepstral peak prominence, and harmonics-to-noise ratio. According to the experimental results, it can be seenthat voice is changed to be breathy as mental fatigue proceeds.
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