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Keyword: Fourier Transform
Software Development and Application for Sound Wave Analysis
by Eunsung Jekal, Juhyun Ku and Hyoeun Park
Journal of Engineering Research and Sciences, Volume 4, Issue 3, Page # 8-21, 2025; DOI: 10.55708/js0403002
Abstract: In this paper, we developed our own software that can analyze piano performance by using short-time Fourier transform, non-negative matrix decomposition, and root mean square. Additionally, we provided results that reflected the characteristics and signal analysis of various performers for the reliability of the developed software. The software was coded through Python, and it actively… Read More
(This article belongs to the Special Issue on Special Issue on Computing, Engineering and Sciences 2024-25 and the Section Acoustics (ACO))
Research on Feature Extraction Method of Fiber Bragg Grating Vibration Monitoring Based on FFT
by Mengxing Zhang, Youming Hua, Chunbin Chen, Chenkun Chu and Xiuli Zhang
Journal of Engineering Research and Sciences, Volume 1, Issue 7, Page # 44-47, 2022; DOI: 10.55708/js0107007
Abstract: Optical fiber is used in various fields because of its advantages of large-capacity communication, long-distance transmission, low signal crosstalk, good confidentiality, anti-electromagnetic interference, good transmission quality, small size, light weight, and long life. In this paper, the latest research progress of optical fiber sensing technology and its application and development in the field of rotating… Read More
(This article belongs to the Special Issue on Special Issue on Multidisciplinary Sciences and Advanced Technology 2022 and the Section Instruments and Instrumentation (INN))