| 摘要 |
PURPOSE: To prevent the degradation in tone quality of nasal sounds to obtain a synthesized voice of high comprehensibility by connecting a CV(consonant- vowel chain) type synthesis fundamental unit by a specific method at the time of discriminating a specific nosal sound. CONSTITUTION: A syllabic code is inputted to discriminate whether a consonant C is a specific nosal sound like m, n, my, or ny or not. If it is discriminated that the consonant is a specific nosal sound, the value of the CV type synthesis fundamental unit is cut into the duration of the nasal sound if this duration is longer than a preliminarily determined set duration, and the value representing the unit is inserted to the front space so that the duration of the nosal sound is equalized to the set duration if it is shorter than the set duration. The value of the vowel part just preceding the nosal sound is cut into the set duration if the duration of this vowel part is longer than the preliminarily determined set duration, and the value representing the vowel part of the unit is inserted to the rear space so that the duration is equalized to the set duration if the duration of the vowel part is shorter than the set duration. Thus, the degradation in tone quality of nosal sounds is prevented. |
