Earticle

초록

영어

Background/Objectives: A resonator plays a significant part in harnessing sound waves. An idea to use a resonator that only resonates on a specific frequency is hypothesized to harness sound efficiently. The primary objective of this study is to investigate the noise present in the boat engine room and be able to classify its resonant frequency and to know which of these frequencies occur most often. Methods/Statistical analysis: By using a sound recorder and a sound pressure level meter, the sound recorded from the idle state of the boat to disembarking and upon reaching the destination. Findings: Fast Fourier transform is applied to extract the frequencies of the recorded sound. Then the frequencies are evaluated using the Davies-Bouldin index to estimate the number of clusters and K-means clustering to classify the frequencies. Improvements/Applications: There are 2 clusters found and that Cluster 1 frequencies are from 17 Hz to 3295 Hz. Cluster 2 frequencies are from 6291 Hz to 8279 Hz. Among the available frequencies, 47 Hz, 155 Hz, and 186 Hz out weight all of the frequencies in terms of their occurrence, and among the three frequencies, 186 Hz has the highest amplitude.

목차

Abstract
I. INTRODUCTION
II. MATERIALS AND METHODS
A. Materials
B. Methods
III. RESULT
IV. DISCUSSION & CONCLUSION
REFERENCES

키워드

저자

• Don C. Opada [ College of Computer Studies, Cebu Institute of Technology University, Cebu City, Philippines ] Corresponding Author
• Elmer S. Maravillas [ College of Computer Studies, Cebu Institute of Technology University, Cebu City, Philippines ]
• Chris Jordan G. Aliac [ College of Computer Studies, Cebu Institute of Technology University, Cebu City, Philippines ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  IJASC

• 간기

  계간

• pISSN

  2619-8150

• 수록기간

  2019~2024

• 십진분류

  KDC 327 DDC 332