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Journal : Jurnal Algoritma

Komparasi Ekstraksi Fitur Nada Gamelan Gangsa Terhadap Performa Klasifikasi Dengan LSTM Budaya, I Gede Bintang Arya; Yusadara, I Gede Putra Mas; Harsemadi, I Gede; Martha, Gede Indra Raditya; Agustino, Dedy Panji
Jurnal Algoritma Vol 22 No 2 (2025): Jurnal Algoritma
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/algoritma/v.22-2.2382

Abstract

Indonesia has a rich and diverse culture, one aspect of which is traditional musical instruments. Bali, as one of the provinces in Indonesia, has unique instruments such as the Gangsa, which is an important part of the Gamelan ensemble. The main challenge in learning traditional musical instruments is the accurate recognition and classification of notes. This study aims to classify Gangsa notes using a Long Short-Term Memory (LSTM) model based on audio feature extraction. Three feature extraction methods were used: Mel-Frequency Cepstral Coefficients (MFCC), Chroma Features, and Mel-Spectrogram. The dataset consisted of 10 tone classes recorded manually from Gangsa bars. The research stages included audio pre-processing, feature extraction, model training, and performance evaluation using accuracy, precision, recall, and confusion matrix metrics. The results show that the MFCC-based model achieved the highest accuracy of 100%, followed by Chroma Features with 98%, and Mel-Spectrogram with 88%. This study shows that the selection of appropriate audio features has a significant effect on tone classification performance. These findings contribute to the application of Artificial Intelligence (AI) in cultural preservation through digital music education.
Co-Authors A.A Putu Ratih Maha Yoni A.A. Gde Adi Indrawan, A.A. Gde Akmal Ibnu Rosyadi Anak Agung Ngurah Bagus Ananda Kusuma Budaya, I Gede Bintang Arya Dandy Pramana Hostiadi Dedy Panji Agustino Dedy Panji Agustino Dedy Panji Agustino, Dedy Panji Dewa Ayu, Dewa Ayu Mirna Wati Gede Indra Raditya Martha I Dewa Made Dharma Putra Santika I Gede Putra Mas Yusadara I Gusti Ayu Desi Saryanti I Gusti Ngurah Darma Paramartha I Gusti Nyoman Triska Subandi, I Gusti Nyoman Triska I Kadek Rudyanto, I Kadek I Komang Dharmendra I Komang Kardiyasa I Komang Rinartha Yasa Negara I Made Adi Krisma Dinata I Made Adi Krisma Dinata I Made Adi Purwantara I Made Darma Susila, I Made Darma I Made Pasek Pradnyana Wijaya I Nyoman Kusuma Wardana I Putu Adi Wijaya, I Putu I Putu Agus Ardiana, I Putu Agus I Putu Indra Agastya Lupika Jaya, I Putu Indra Agastya I Wayan Ananta Setiabudi I Wayan Gede Lamopia Indah, Hene Nor Kadek Agus Wirawan Luh Gede Surya Kartika Luh Gede Surya Kartika Luh Gede Surya Kartika, Luh Gede Luh Rediasih M. Alvinnur Filardi Made Sudarma Martha, Gede Indra Raditya Muchammad Naseer Ni Kadek Alvin Surya Bagnesa Ni Kadek Sukerti Ni Luh Putu Sintya Budyawati Ni Luh Ratniasih Ni Luh Ratniasih, Ni Luh Ni Made Dewi Purnama Sari Ni Made Dewi Purnama Sari, Ni Made Dewi Ni Putu Putri Ayu Wijayanthi Ni Wayan Deriani, Ni Wayan Nyoman Pramaita P, I Gst Agung Ayu Uttami Vishnu Pande Putu Gede Putra Pertama Pande, I Made Suandana Astika Pratama, P.T. Eka Yudhi Putu Sinta Puspadewi, Putu Sinta Putu Tjintia Kencana Dewi Ratih Maha Yoni, A.A. Putu Ricky Aurelius Nutanto Diaz, Ricky Aurelius Ririn Ramadhani, Ririn Satya Tunggul Wijayanto, Satya Tunggul Tria Hikmah Fratiwi Triana Wasitama Putra, Triana Vishnu P, I Gst Agung Ayu Uttami Wulandari, Riza Yusadara, I Gede Putra Mas