Kentong Damping Sound Intensity Level Based on Kentongan Length Variations

Ellianawati Ellianawati  -  Universitas Negeri Semarang, Indonesia
Muhammad An’im Arravi*  -  Universitas Negeri Semarang, Indonesia
Fitria Wulandari  -  Universitas Negeri Semarang, Indonesia
Rofita Istiqomah  -  Universitas Negeri Semarang, Indonesia

(*) Corresponding Author
DOI: 10.21580/jnsmr.2019.5.2.11039

This study aims to determine the attenuation of the sound produced by a Kentongan musical instrument based on variations in the length of the Kentongan. Data were collected in a quiet room by starting to measure the noise and atmosphere of the room. This study used Sound Meter Software with version 3.4.5 with a maximum sound intensity limit of ~ 90 dB, mobile as an intermediary. This study used Kentongan with a length of 1, 29 cm and a length of 2 that was 34.1 cm. Experiments were carried out 3 times with the first experiment without Kentongan, then Kentongan 1 and then Kentongan 2. The sound intensity produced by without Kentongan is an average of 60.08 dB, then with Kentongan 1 that is, with an average of 61.86 dB, and Kentongan 2 with an average of 56.68 dB. 

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Keywords: intensity level, sound, bamboo, kentongan.

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Journal of Natural Sciences and Mathematics Research
Published by Faculty of Science and Technology
Universitas Islam Negeri Walisongo Semarang

Jl Prof. Dr. Hamka Kampus III Ngaliyan Semarang 50185
Website: https://journal.walisongo.ac.id/index.php/JNSMR
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ISSN: 2614-6487 (Print)
ISSN: 2460-4453 (Online)

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