Classification of Gamelan Tones Based on Fractal Analysis

2nd Annual Applied Science and Engineering Conference

工业技术;自然科学

Wintarti, A.^1 ; Juniati, D.^1 ; Wulandari, I.N.^1

Mathematics Department, Universitas Negeri Surabaya, Surabaya, Indonesia^1

关键词: Fractal analysis;    Fractal methods;    Higuchi fractal dimension;    Indonesia;    Musical signals;    Musical tones;    Physical phenomena;    Time-series data;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/288/1/012022/pdf
DOI  :  10.1088/1757-899X/288/1/012022

来源: IOP

【 摘 要 】

Gamelan is an ensemble music originated from Indonesia. Gamelan have been made manually but had 7 tonnes for Pelog scale or 5 tonnes for Slendro scale. It is need to classify gamelan tones for digital musical processing for various objectives like learning, teaching, or composing. Fractal analysis can be used to classify physical phenomena like musical tones signal. One of fractal method was Higuchi that is suitable in computing fractal dimension for time series data as musical signals. In this paper, we propose the Higuchi fractal dimension to distinguish gamelan signal tones. Our experiment show that Demung Pelog tones can be classified properly until 82.85%. This result encourages to classify gamelan tones not only for other instruments but also for Slendro scale.