A Study on the Times and the Acoustic of Zheng

• Main Authors: Mei-Fen Hsin, 辛玫芬
• Other Authors: 鄭德淵
• Format: Others
• Language: zh-TW
• Published: 2007
• Online Access: http://ndltd.ncl.edu.tw/handle/58017879104456502642

碩士 === 國立臺南藝術大學 === 民族音樂學研究所 === 95 === In 1960s, Xu, Zheng Kao, Father of Chinese Zheng, developed S-Shape bridge (Yue-San) 21 nylon strings Zheng. This kind of zither is coneidered the revolution in Chinese Zheng development history. With the newly developed shape, it broadens the octaves from three to four. That is to say, it is added a whole octave. After Opium War, the modern Chinese history was highly influenced by the concept of modernization. The zheng is under the affect of external environments, like political factor, the professional education system build, and the modern association. The zheng also makes some improvements in compass increasing, volume increasing, and instrument making standardization. Thus, S-shape bridge (Yue-San) 21 nylon strings Zheng got the time meaning of “ Modernization” This study starts from Chinese history, collects the related essays for analysis, studies the affect of the “ Modernization” of Zheng in Politics, Society and Zheng education. Through computer vocal software analysis, we can understand the zheng’s effective string’s length and if the inside of the panel with bass bar will affect harmonics. Through this study, there are some results as below. 一、Analysis of the different effective string’s length. 1. The effective string length: the first string is 15cm and the 21st string is 83cm is the better option for the 21st string. 二、Free Vibration of Panel. 1. To put on bass bar on the inside of panel, the vibration is getting strong among 70-400Hz on the spectrum chart. 2. Wherever bass bar is put on, the better way is to turn 30 degree with clock-side. 三、in play and volume test. 1. When bass bar turns the angle bigger, the engery of high harmonics will reduce more. 2. The peak of fundamental of frequency 220Hz get smaller after bass bar on the panel, whatever angle it is. 3. The second and third harmonics of frequency 440Hz, its dB is higher then the panel without bass bar .