抄録
The purpose of this study is to capture the formal knowledge of the growth of the singing
voices from the students in the College of Education, and to clarify its relationship to the tacit
knowledge of professional classical music singers. A set of growth assessment items
expressed in Japanese was created to evaluate the growth of the beginners, and four professional classical music singers used these items to evaluate the growth of their singing
voice by listening. The growth evaluation item set consists of 27 items that are organized into
three categories: vocal source factor, resonance factor, and breathing factor. A special
evaluation sheet was designed to collect the data from the singing voices. We also clarify the
usefulness and limitations of the growth assessment by features extracted by acoustic
spectrum analysis.