A study on the identification of the change-voice period for song guidance : Use of the wave form analysis

歌曲引导变声周期识别的研究：波形分析的应用

• 批准号: 14580299
• 负责人: KIMURA Setsu
• 金额: $ 2.37万
• 依托单位: Ehime University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2002
• 资助国家: 日本
• 起止时间: 2002 至 2004
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-14580299/
• 关键词: change-of-voice; post-puberty voices; analyasis of the song voice; formant; expert; voice range; song guidance; empirical validation of expert' judgment; 換声点; 標本

Traditionally, the judgment of exactly when puberty in voice change starts and when it ends has largely relied on the experience of experts.However, many music teachers who lack such expertise, have had trouble teaching students in puberty.As a way to improve the situation, we examined the potential usefulness of the formant analysis of frequency component, in which we compared voice resonances with actual audible sounds. The result indicated that as one's voice changed, the pitch of the forth Formant lowered and that of fifth Formant moved horizontally, or rose. Thus, we were able to clearly see the difference between pre-puberty and post-puberty voices.The use of the wave form analysis is an original method for specifying the age at which puberty in voice change starts. This method is effective even when it is difficult to detect when voice change in puberty starts and when it finishes, because with this method we can clearly detect audible changes in student's voice.

传统上，判断声音变化的青春期何时开始，何时结束，主要依靠专家的经验。然而，许多音乐教师缺乏这样的专业知识，在教青春期的学生时遇到了困难。作为一种改善这种情况的方法，我们研究了频率成分共振峰分析的潜在用途，其中我们比较了声音共振和实际可听到的声音。结果表明，随着嗓音的变化，第四低音的音高降低，第五低音的音高水平移动或上升。因此，我们能够清楚地看到青春期前和青春期后的声音之间的差异。波形分析的使用是确定声音变化的青春期开始的年龄的原始方法。这种方法是有效的，即使它是很难检测到的声音变化在青春期开始时，当它结束时，因为用这种方法，我们可以清楚地检测学生的声音的变化。