Expression of the Feelings to Noise using Cepstral Parameters
* Presenting author
The influence that noise environment gives in human feelings becomes one important topics of the environmental problem. This paper shows the unpleasant feelings of human when hearing different type of noises. Previous our research showed that the unpleasant feelings are changed even if the sound pressure level hearing noise is same. In this paper, we define the feature parameters using spectral envelopes of noisy signal using cepstral coefficients. Relation between the feeling test of examinees and the feature parameters are compared. The results show that the spectral level on high frequency domain affect the feelings. Next, examination between the feelings and the Lombard effect are tested. The amount of the Lombard effect are defined using the center of the gravity of the pentagon by the first and the second formant frequency of Japanese 5 vowels or the average of the moving distance of the selected vowels. Examinations show some relationship between amount of the effect and feelings.