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All Journal IAES International Journal of Artificial Intelligence (IJ-AI) Seminar Nasional Aplikasi Teknologi Informasi (SNATI) BIMASTER Coding: Jurnal Komputer dan Aplikasi Jurnal Simetris Jurnal Teknologi Informasi dan Ilmu Komputer Jurnal Edukasi dan Penelitian Informatika (JEPIN) JUITA : Jurnal Informatika Scientific Journal of Informatics CESS (Journal of Computer Engineering, System and Science) InfoTekJar : Jurnal Nasional Informatika dan Teknologi Jaringan Jurnal Teknologi dan Sistem Komputer Jurnal Khatulistiwa Informatika JITK (Jurnal Ilmu Pengetahuan dan Komputer) BULETIN AL-RIBAATH JURIKOM (Jurnal Riset Komputer) Dewa Ruci : Jurnal Pengkajian dan Penciptaan Seni TELKA - Telekomunikasi, Elektronika, Komputasi dan Kontrol Abdi: Jurnal Pengabdian dan Pemberdayaan Masyarakat JOURNAL OF INFORMATION SYSTEM RESEARCH (JOSH) Journal of Computer System and Informatics (JoSYC) Jurnal Sistem Komputer dan Informatika (JSON) Jurnal Computer Science and Information Technology (CoSciTech) JUSTIN (Jurnal Sistem dan Teknologi Informasi) Jurnal Fokus Elektroda (Energi Listrik, Telekomunikasi, Komputer, Elektronika dan Kendali) The Indonesian Journal of Computer Science Mekongga: Jurnal Pengabdian Masyarakat
Dwi Marisa Midyanti
Universitas Tanjungpura
Arts Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Medicine & Pharmacology Public Health Social Sciences Other

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Introduction and Implementation of the Internet of Things for Students Vocational High School 1 Punggur Besar Hirzen Hasfani; Uray Ristian; Hafiz Muhardi; Kasliono; Cucu Suhey; Tedy Rismawan; Ikhwan Ruslianto; Rahmi Hidayati; Syamsul Bahri; Dwi Marisa Midyanti; Irma Nirmala; Suhardi; Kartika Sari
MEKONGGA: Jurnal Pengabdian Masyarakat Vol. 3 No. 1 (2026): April 2026 (In Progress)
Publisher : Digital Innovation

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69616/mekongga.v3i1.265

Abstract

The training program “Introduction and Implementation of IoT” at Vocational High School(VHS) 1 Punggur Besar aims to enhance students’ understanding and practical skills in developing IoT-based systems. The training introduces key IoT concepts, components such as sensors, actuators, and microcontrollers, and how devices communicate via the internet. Through hands-on sessions, students create simple projects like temperature and humidity monitoring systems, smart lighting, and sensor-based notifications. This program helps students build technical competence in hardware assembly and IoT programming while fostering creativity and problem-solving abilities. As a result, students gain better readiness to face industrial demands that rely on digital technologies and are encouraged to innovate in applying IoT to real-world challenges.
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 , Syahru Rahmayuda, Haris Febriyanto Ramadhan , Sampe Hotlan Sitorus Abdul Hamid Abdul Hamid Abizar Algifari Saiful Ade Muhamad Nurhadi Adi Kurnia Agung Jati Swiknyo Arista, Agamita Sasya Cahyani Astrid Lestari Tungadi Caecilia Cantica Gita Mileniae Ahen Chairul Mukmin Cucu Suhery Cucu Suhey Dedi Triyanto Deni Deni Dewa, Vitus Sandy Syahputra Dian Prawira, Dian Edwin Rianto Erick Alfons Lisangan Farhan Fajar Luthfi Fensy Sella Firdaus, Akmal Firdaus, Nurul Fajri 'Aini Hafiz Muhardi Halawa, Yasman Hanafi, Ahmad Abdul Hansen Alexander Rustan Herlian, Wildan Hirzen Hasfani Ikhwan Ruslianto Ilham Syah Ilhamsyah Indrawan, Muhammad Catur Irma Nirmala Julia Junianti, Suci Kartika Sari Kasliono Kasliono Kurniawan, Robbi Lestari, Ayu Lathalia Mahfuza, Sri Martha, Shantika Midyanti, Hafizhah Insani Mochammad Imron Awalludin Muhammad Dito Asrofa Muhammad Raehan Maulana Mulia, Agung Wira Munir Neneng Suriati Nova Andaresta Nur Ath Thariq, Muhammad Arifaldi Qadari, Ilham Latul Rahman, Reiza Aditya Rahmi Hidayati Renny Puspita Sari Rikki Pratama Riski Arasyid Saputro, Arinto Mangku Septiana, Siaudila Anisa Dewi Shantika Martha Suhardi Syamsul Bahri Syamsul Bahri Syamsul Bahri Tedy Rismawan That, Shau Thomas Adi Putra Tri Floren Doni Uray Ristian Valentino, Viktorius Wahiddatun Nisa Yudi Sukmayadi Yunizar, Ahmad Zalikhah Khairunnisa