Modelling of Earphone Design Using Principal Component Analysis

This research investigated a mathematical model of earphone design with principal component analysis. Along with simplifying the design problem, a predictive model for the sound quality indicators, namely, total harmonic distortion, power of output, range of frequency response, signal-to-noise ratio...

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Main Authors: Lucas Kwai Hong Lui, C. K. M. Lee
Format: Article
Language:English
Published: MDPI AG 2023-09-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/13/17/9912
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author Lucas Kwai Hong Lui
C. K. M. Lee
author_facet Lucas Kwai Hong Lui
C. K. M. Lee
author_sort Lucas Kwai Hong Lui
collection DOAJ
description This research investigated a mathematical model of earphone design with principal component analysis. Along with simplifying the design problem, a predictive model for the sound quality indicators, namely, total harmonic distortion, power of output, range of frequency response, signal-to-noise ratio, impedance of the speaker, and headroom, was formulated. (1) Background: Earphone design is a difficult problem requiring excessive experience and know-how in the process. Therefore, this research was developed to formulate a predictive model to facilitate the design process. (2) Methods: A simplified model for the design was developed in previous research, while the sound quality indicators were found to be connected to the eight material-specific parameters. Simultaneously, a principal component analysis (PCA) was utilized to decrease the number of input variables and create a more convenient and streamlined model. (3) Results: The principal component analysis-based approach obtained suboptimal predictive accuracy for the sound quality indicators, but a simplified formulation was obtained. (4) Conclusions: Based on the development and comparison of the modelling approach, it can be seen that principal component analysis can be utilized to simplify the mathematical model of the earphone design problem with a trade-off of accuracy.
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spelling doaj.art-b3c3431cad534cbfad8282ab6638c5762023-11-19T07:53:25ZengMDPI AGApplied Sciences2076-34172023-09-011317991210.3390/app13179912Modelling of Earphone Design Using Principal Component AnalysisLucas Kwai Hong Lui0C. K. M. Lee1Department of Industrial and Systems Engineering, The Hong Kong Polytechnic University, Hong Kong, ChinaDepartment of Industrial and Systems Engineering, The Hong Kong Polytechnic University, Hong Kong, ChinaThis research investigated a mathematical model of earphone design with principal component analysis. Along with simplifying the design problem, a predictive model for the sound quality indicators, namely, total harmonic distortion, power of output, range of frequency response, signal-to-noise ratio, impedance of the speaker, and headroom, was formulated. (1) Background: Earphone design is a difficult problem requiring excessive experience and know-how in the process. Therefore, this research was developed to formulate a predictive model to facilitate the design process. (2) Methods: A simplified model for the design was developed in previous research, while the sound quality indicators were found to be connected to the eight material-specific parameters. Simultaneously, a principal component analysis (PCA) was utilized to decrease the number of input variables and create a more convenient and streamlined model. (3) Results: The principal component analysis-based approach obtained suboptimal predictive accuracy for the sound quality indicators, but a simplified formulation was obtained. (4) Conclusions: Based on the development and comparison of the modelling approach, it can be seen that principal component analysis can be utilized to simplify the mathematical model of the earphone design problem with a trade-off of accuracy.https://www.mdpi.com/2076-3417/13/17/9912principal component analysisearphone designregression modelcomputer-aided designsound quality
spellingShingle Lucas Kwai Hong Lui
C. K. M. Lee
Modelling of Earphone Design Using Principal Component Analysis
Applied Sciences
principal component analysis
earphone design
regression model
computer-aided design
sound quality
title Modelling of Earphone Design Using Principal Component Analysis
title_full Modelling of Earphone Design Using Principal Component Analysis
title_fullStr Modelling of Earphone Design Using Principal Component Analysis
title_full_unstemmed Modelling of Earphone Design Using Principal Component Analysis
title_short Modelling of Earphone Design Using Principal Component Analysis
title_sort modelling of earphone design using principal component analysis
topic principal component analysis
earphone design
regression model
computer-aided design
sound quality
url https://www.mdpi.com/2076-3417/13/17/9912
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