How the size of violin sound holes affect its timber and volume

• Main Authors: HSUN-CHUN TSENG, 曾薰駿
• Other Authors: KUO-HUA CHEN
• Format: Others
• Language: zh-TW
• Published: 2015
• Online Access: http://ndltd.ncl.edu.tw/handle/11849648084453975951

碩士 === 國立臺南藝術大學 === 民族音樂學研究所 === 103 === Abstract This paper mainly discusses how sound holes influence timber and volume of violin. The distinction of timber is due to different composition of harmonic series. I conducted an experiment to gather data. I opened 13 groups of sound holes and recorded their notes on open strings G, D, A, E. In addition, I analyzed variation of timber from different proportions of sound holes with recording and spectrum analysis. In this way, I discovered how timber and volume of violin are influenced by different proportions of sound holes. This research based on experimental data analyses the spectrums on different sizes of sound holes. Findings are as follow: 1. The intensity of fundamental and overtone are increasing with enlarging sound holes. 2. The component of harmony decreases with enlarging sound holes. In contrary, the component of non-harmony rises at the same time. 3. The size of sound holes increased the volume is also increased if the microphone is placed 0.3m away from the sound holes. However if the microphone is placed 5m away from the sound holes, only the strings G and D have significant in volume, and strings A and E have not. Key word: violin , sound hole , overtone series