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All Journal Dewa Ruci : Jurnal Pengkajian dan Penciptaan Seni Nama jurnal : International Journal of Education and Humanities
Julia
Universitas Pendidikan Indonesia
Arts Humanities Education Languange, Linguistic, Communication & Media Social Sciences Other

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Effectiveness of the CERIA Flipbook on Elementary Students’ Disaster Literacy and Conceptual Understanding: A Research and Development Study Adinda Nurul Annisa; Julia; Ali Ismail
International Journal of Education and Humanities Vol. 6 No. 2 (2026): International Journal of Education and Humanities (IJEH)
Publisher : Ilmu Inovasi Nusantara

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Abstract

Elementary science learning on volcanic eruption topics remains challenging for students. This difficulty arises from the abstract nature of the content and the limited use of interactive visual media, which often leads to low conceptual understanding. This study aims to develop and evaluate the CERIA flipbook (Creative Education with Augmented Reality for Science) as an AR-based learning medium that integrates contextual elements from students’ daily environments to support meaningful learning. The study employed a Research and Development (R&D) approach using the ADDIE model and implemented a one-group pretest–posttest design involving 25 fifth-grade students at SD Negeri Kodasari I, Majalengka, Indonesia. Data were collected through expert validation sheets, essay-based pretest and posttest, and student response questionnaires, and were analyzed using descriptive, quantitative, and inferential techniques. The results indicate that the media is highly feasible, with validation scores of 90.83% from media experts and 94.44% from content experts. Students’ conceptual understanding improved significantly, as reflected in the increase of mean scores from 41.8 to 82.64 (p < 0.001), with an N-Gain score of 0.73, categorized as high. In addition, students showed very positive responses toward the media, with an average score of 91.25%. These findings contribute to the growing evidence on the integration of contextual elements into AR-based science learning and offer a replicable pedagogical model for enhancing disaster literacy in elementary education
Integrating audio technology and FFT analysis to explore microtonality and the "missing fundamental" in kacapi siter Hafizhah Insani Midyanti; Yudi Sukmayadi; Munir; Julia; Fensy Sella; Abizar Algifari Saiful; Dwi Marisa Midyanti
Dewa Ruci: Jurnal Pengkajian dan Penciptaan Seni Vol. 20 No. 2 (2025)
Publisher : Pascasarjana Institut Seni Indonesia Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33153/dewaruci.v20i2.7686

Abstract

The Sundanese Kacapi Siter exhibits distinctive microtonal characteristics and acoustic phenomena requiring objective documentation. This study integrates high-fidelity audio recording with Fast Fourier Transform (FFT) analysis to examine the microtonal properties of the Pelog Sunda tuning system and the missing fundamental phenomenon in this traditional instrument. Using Practice-Led Research methodology, we recorded 20 single-note samples with a Neumann TLM 103 condenser microphone in natural reflective classroom conditions, analyzing them through SPAN FFT spectral analysis and cent deviation calculations against 12-TET standards. Results demonstrate systematic microtonality with deviations ranging from -15 to +28 cents, with note "Ti" consistently sharp (+17 to +28 cents) and note "Na" consistently flat (-5 to -13 cents) across octaves (p<0.001, effect size d=2.4). Spectral analysis reveals a missing fundamental phenomenon in low-register notes (La 4: 58.2 Hz, Ti 4: 66.5 Hz), where harmonics dominate perceived pitch despite weak fundamental-frequency energy (-14.3 to -8.9 dBFS fundamental vs. -6.2 to -4.1 dBFS second harmonic). These findings provide quantitative evidence that Sundanese tuning represents a structured non-Western pitch system with intentional microtonal design, advancing computational ethnomusicology through objective acoustic documentation methods that enable preservation, comparative analysis, and technological applications in digital instrument development.
Co-Authors Abizar Algifari Saiful Adinda Nurul Annisa Ali Ismail Dwi Marisa Midyanti Fensy Sella Midyanti, Hafizhah Insani Munir Yudi Sukmayadi