RESEARCH ON SOUND FIELD OF TRADITIONAL PERFORMANCE PLACE OF MIAO NATIONALITY -- A CASE STUDY OF THE MIAO BRONZE-DRUM SQUARE IN LANG DE XIA VILLAGE IN GUIZHOU PROVINCE

摘要

The Miao nationality is one of Chinese minority which has abundant Sound culture. For example, in Miao's cultural form, music is closely related with festivals, folk rituals, producing activities, and more Miao ancient songs is the most importantly tool to spread history and culture. For this reason, there are some performance buildings and Spaces related to acoustics. Among them, the bronze-drum square is one of the most primary outdoor performance place in Miao's culture. This paper is based on the test of sound field of bronze-drum square in Lang De Xia Miao's village, which locates at South-eastern in Guizhou province of China. The test used clapping as impulsive sound source stood in the bronze-drum square's centre, and were conducted on 5 test points, contained respectively standing on the distance of 3 meters, 6 meters away from the sound source, and respectively standing on the Second step, the tenth step and the seventeenth step. Through this test, it obtained some important numerical value of sound field characteristic such as the Early Decay Time (EDT), the Reverberation Time (RT), and analyzed the characteristic of sound transmission combined with space morphology, enclosing degree, and ecomaterials. Furthermore, by analyzing the acoustic feature of main sources such as Miao ancient songs, four-around drum, and dialect, this article established the relationship in Miao's traditional performance place between objective evaluation of sound field with traditional culture.