The Performance and Frequency Response Analysis of In-Ear Earphones with HATS
碩士 === 逢甲大學 === 電聲碩士學位學程 === 99 === The objective of this thesis is to perform the frequency response analysis of in-ear earphones with an aim to improve the design and performance of earphone microspeakers. Klippel system is used to measure the lumped parameters of commercial in-ear earphones. Soun...
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ndltd-TW-099FCU054420302015-10-21T04:10:29Z http://ndltd.ncl.edu.tw/handle/28268828641483401038 The Performance and Frequency Response Analysis of In-Ear Earphones with HATS 內耳式耳機結合人工頭之特性與頻率響應研究 Li-Yu Chen 陳立祐 碩士 逢甲大學 電聲碩士學位學程 99 The objective of this thesis is to perform the frequency response analysis of in-ear earphones with an aim to improve the design and performance of earphone microspeakers. Klippel system is used to measure the lumped parameters of commercial in-ear earphones. SoundCheck system in an anechoic chamber is also used to measure the sound pressure level of earphones. Based on a lumped-parameter method, the influence of closed or open of the front or back vent holes, paper screens, earplug types and wire screens on the performance of the in-ear earphones is investigated. To simulate human acoustic impedance presented in the ear canal, B&K HATS (Head and Torso Simulator) is used for the testing of in-ear earphones. The influence of the ear canal is considered in the development of the equivalent circuit model of the in-ear earphones to improve the accuracy of analysis. The measured sound pressure level and predicted results showed satisfactory agreement. Ruey-Bin Yang 楊瑞彬 2011 學位論文 ; thesis 58 zh-TW |
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碩士 === 逢甲大學 === 電聲碩士學位學程 === 99 === The objective of this thesis is to perform the frequency response analysis of in-ear earphones with an aim to improve the design and performance of earphone microspeakers. Klippel system is used to measure the lumped parameters of commercial in-ear earphones. SoundCheck system in an anechoic chamber is also used to measure the sound pressure level of earphones. Based on a lumped-parameter method, the influence of closed or open of the front or back vent holes, paper screens, earplug types and wire screens on the performance of the in-ear earphones is investigated.
To simulate human acoustic impedance presented in the ear canal, B&K HATS (Head and Torso Simulator) is used for the testing of in-ear earphones. The influence of the ear canal is considered in the development of the equivalent circuit model of the in-ear earphones to improve the accuracy of analysis. The measured sound pressure level and predicted results showed satisfactory agreement.
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author2 |
Ruey-Bin Yang |
author_facet |
Ruey-Bin Yang Li-Yu Chen 陳立祐 |
author |
Li-Yu Chen 陳立祐 |
spellingShingle |
Li-Yu Chen 陳立祐 The Performance and Frequency Response Analysis of In-Ear Earphones with HATS |
author_sort |
Li-Yu Chen |
title |
The Performance and Frequency Response Analysis of In-Ear Earphones with HATS |
title_short |
The Performance and Frequency Response Analysis of In-Ear Earphones with HATS |
title_full |
The Performance and Frequency Response Analysis of In-Ear Earphones with HATS |
title_fullStr |
The Performance and Frequency Response Analysis of In-Ear Earphones with HATS |
title_full_unstemmed |
The Performance and Frequency Response Analysis of In-Ear Earphones with HATS |
title_sort |
performance and frequency response analysis of in-ear earphones with hats |
publishDate |
2011 |
url |
http://ndltd.ncl.edu.tw/handle/28268828641483401038 |
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