音乐表达偏差( 失歌症) 量化评价分析
收稿日期: 2019-09-06
修回日期: 2019-11-27
网络出版日期: 2020-07-23
基金资助
国家自然科学基金( 11804248) ，天津市自然科学基金( 18JCQNJC03200) 资助
Quantitative evaluation analysis of musical expression bias ( amusia)
Received date: 2019-09-06
Revised date: 2019-11-27
Online published: 2020-07-23
牛徐策, 刘彦迪, 李胡林, 李永徽 . 音乐表达偏差( 失歌症) 量化评价分析[J]. 大学物理, 2020 , 39(07) : 66 -70 . DOI: 10.16854 /j.cnki.1000-0712. 190404
The“tone deafness”is the phenomenon that a singer's singing frequencies are higher or lower than the music frequencies.
Based on the spectrum analysis the relative deviation of the frequency is quantitated determined. With the
randomly collected cappella records as the research object，the relative deviation of the frequency approximately follow
a normal distribution with mean 0 and standard deviation 0.03507. Thus，it is possible to define the“musical
expression deviation”for each singer by providing scores of singing precision and to propose a feasible algorithm in evaluations of amusia.
Key words： spectrum analysis; tone deafness; amusia; statistical rule; machine learning
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