ANALISIS FREKUENSI BUNYI DAN CEPAT RAMBAT GELOMBANG BUNYI PADA ALAT MUSIK TRADISIONAL ANGKLUNG

The research is motivated by cultural aspects that must be preserved and studied in various scientific fields, including physics. One of the interesting cultural elements to study is the traditional musical instrument, the angklung. This study aims to analyze the frequency and speed of sound waves in angklung. The benefit of this research is to get the cognitive content of science and as a form of cultural preservation of the angklung musical instrument. This type of research is quantitative with experimental methods. Collecting data is by measuring the physical quantities on the angklung. The data analysis technique used is graphical analysis and mathematical calculations. The results obtained are that the length of the angklung tube is inversely proportional to the frequency of the sound produced. Mathematical calculations can get the value of the speed of sound wave propagation according to the closed organ pipe concept. Based on the calculation results, the speed of sound waves in angklung is 340.11 m/s. Keywords: angklung, frequency of sound, speed of sound