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All Journal Educational Journal of Learning Technology
Radhiatul Amalia
Universitas Sarjanawiyata Tamansiswa
Computer Science & IT Education Languange, Linguistic, Communication & Media Social Sciences Other

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Development of a Fourier Transform-Based Gamelan Signal Processing Simulation Using Python and GNU Octave to Support Problem-Solving Skills and Independent Learning Aditya Yoga Purnama; Fitria Sulistyowati; Widodo Widodo; Alfat Khaharsyah; Ragil Saputri; Rudolfus Soares; Radhiatul Amalia
Educational Journal of Learning Technology Vol. 3 No. 3 (2026): Educational Journal of Learning Technology (May 2026)
Publisher : South Sulawesi Education Development (SSED)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58230/edutech.v3i3.85

Abstract

Science education today requires integrating technological competencies to prepare students for global competition; however, unsupportive learning habits and limited use of technology contribute to low levels of problem-solving skills and learning independence. This study aims to develop a simulation of gamelan musical instrument signal processing using open-source computational platforms, namely Python and GNU Octave. The research employed a research and development (R&D) approach based on the Borg and Gall model, limited to the initial product development stage. Fourier Transform analysis was applied to convert sound signals from the time domain into the frequency domain. The simulation successfully identified the gamelan’s natural frequency at 328 Hz via spectral analysis, with consistent results on both platforms. The developed simulation provides visualization of time-series waveforms and frequency spectra and is intended as a computational learning medium for physics instruction, particularly in wave topics. Although field testing and effectiveness evaluation were not conducted, the simulation is designed to support the development of students’ problem-solving skills and learning independence in future implementations.
Co-Authors Aditya Yoga Purnama alfat khaharsyah Fitria Sulistyowati Ragil Saputri Rudolfus Soares Widodo Widodo