Enhanced richness of notes by modulation of boundary conditions in a stringed musical instrument

被引：0

作者：

Roy, Basudev ^{[1
]}

机构：

[1] Indian Inst Sci Educ & Res, Kolkata 741252, India

来源：

CURRENT SCIENCE | 2014年 / 107卷 / 01期

关键词：

Beats; boundary conditions; frequency modulation; note richness; string musical instruments;

D O I：

暂无

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The richness of the sound emanating from a stringed musical instrument can be improved by the making it linger for longer. This has traditionally been performed in sitar and sarod by modification of boundary conditions while introducing a jawari. We try to understand the effect of the jawari by assuming periodic modulation of boundary conditions of the string in a sonometer and find that the lobe-like effect can indeed be observed as an interference between the frequency-modulated sideband of one mode with the next higher-order mode. The contributions from different modes can be added up. The size of the beat signal increases while increasing the depth of modulation.

引用

页码：68 / 72

页数：5

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