Affect Related Acoustic Features of Speech and Their Modification

摘要

This paper presents our recent work on the investigation of affect related acoustic features of Mandarin speech and their modification. A syllabic F0 contour model so called "Gravity Model" is proposed, which can describe the detailed changes of the F0 contour on the syllable level between different emotions. Then, different representations of spectrum, together with different modification methods, are also tried and compared; a maximal-mean amplitude representation proves to be the best, with its corresponding modifying method.