Analysis of sound frequency and sound intensity in the cylindrical musical instrument using audacity software

  • D N S Handayani Universitas Ahmad Dahlan, Indonesia
  • Y Pramudya Universitas Ahmad Dahlan, Indonesia

Abstract

The aim of the research is to investigate the value of the sound frequency and the sound intensity generated from the cylindrical percussion instruments using Audacity software and the effect of membrane diameter on the sound frequency and sound intensity of cylindrical percussion instruments. The material of membrane is a leather and mica plastic. The sound was recorded and analyzed by Audacity software. For the leather membrane diameter of 13.5 ± 0.1 cm, the sound frequency is 293.2 ± 16.3 Hz, and the sound intensity is -13.7 ± 1.0 dB. For the leather membrane diameter of 20.5 ± 0.1 cm, the sound frequency is 166.1 ± 7.9 Hz, and the sound intensity is -9.2 ± 1.5 dB. For the mica plastic membrane diameter of 13.5 ± 0.1 cm, the sound frequency is 315,9 ± 7.0 Hz, and the sound intensity is -14,5 ± 1.5 dB. For the mica plastic membrane diameter of 20.5 ± 0.1 cm, the sound frequency is 304,3 ± 14.8 Hz, and the sound intensity is -13.4 ± 1.1 dB. The effect of membrane diameter on cylinder-shaped instrument shows that the smaller the diameter, the lower the resulting sound intensity value, but the higher the resulting sound frequency.

Published
2018-07-01