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Rahmawati Ohi
Lectures in Gorontalo State University, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Mathematics Physics

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Ecoacoustic Exploration of Bone Bolango Bamboo in the Tomini Bay Area for Polopalo Manufacturing as a Nusantara Cultural Heritage Rahmawati Ohi
International Journal of Science and Environment (IJSE) Vol. 6 No. 4 (2026): November 2026
Publisher : CV. Inara in Colaboration with www.stie-sampit.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v6i4.837

Abstract

This study aims to explore the physical-acoustic characteristics of talilo huidu bamboo from Bone Bolango, Tomini Bay area, in the production of Polopalo, while formulating geometric standards to preserve local ecology and cultural heritage. Utilizing a qualitative method as the primary approach, this research integrates oral ethnoorganological studies with sound analysis via Fast Fourier Transform in Audacity as supporting data, alongside the sound philosophy concepts of the Gorontalo community. The results successfully formulate precise geometric standards for the Polopalo blade: a base length of 154 mm and a wall thickness of 10–12 mm with a proportional resonator hole to maintain traditional sound accuracy. Psychoacoustically, the mechanical structure of the instrument (Bulango and Elenggengo) is proven capable of emitting sound pressure that propagates effectively across 3 to 6 kilometers in open space as an agricultural communication tool. This physical standardization has been archived so that the instrument's revitalization process provides cultural-economic incentives for the community to ecologically preserve mountainous bamboo groves in the Tomini Bay area.
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