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This study investigates the alaryngeal voicing methods and their inherent voice quality. The voice quality of vowel /e/, recorded from sixteen alaryngeal speakers and four normal ones, was analyzed using a nonmetric multidimensional scaling method called SMACOF. A SMACOF solution was interpreted by using five acoustical measures and twenty one psychoacoustical ratings. The results indicated that at least two dimensions are necessary to describe the alaryngeal voice quality. One is connected with the listeners' preferences for the voices and differentiates the anaryngeal voices from the normal ones. The esophageal voices have a wide spread on this dimension. Another dimension indicates the abnormality peculiar to the voices produced with the artificial larynges and differentiates them from the normal voices and the esopha geal ones. These dimensions could be acoustically well interpreted, and could describe the inherent voice quality for each voicingmethod.
日本音声言語医学会の論文