| Presentation | 2012-03-16 Examination and consideration concerning a relation between ear canal structure of IEC60268-7-based pinna model and reproducibility of sound pressure measurement Kiyofumi INANAGA, Tohru IFUKUBE, Tominori KIMURA, Terumasa YAMAMURA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A measurement platform that may realize a state of real use and good reproducibility is requested for measuring characteristics of headphones and earphones. Combination of a pinna model (simulator) based on IEC60268-7 with HATS based on IEC60318-7 (60959) has been recommended as one of measurement platforms. However, there is a problem that the reproducibility of measurement results changes according to a kind of the earphone. The reason would be because the ear canal structure of the pinna model is not sufficiently provided. Especially, the ear canal structure exerts a big influence on the reproducibility of the measurement result for Canal (insertion) type earphone. Therefore, a new pinna model that may exactly simulate the ear canal structure of a real ear was proposed in this report. From the measurement results, it was ascertained that the reproducibility can be certainly improved by using the new pinna model. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | IEC / HATS / SAMAR / Headphones / Earphones / Measuring / Noise canc / Canal-type / EN50332 |
| Paper # | EA2011-121 |
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| Conference Information | |
| Committee | EA |
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| Conference Date | 2012/3/9(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Vice Chair | |
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| Paper Information | |
| Registration To | Engineering Acoustics (EA) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Examination and consideration concerning a relation between ear canal structure of IEC60268-7-based pinna model and reproducibility of sound pressure measurement |
| Sub Title (in English) | |
| Keyword(1) | IEC |
| Keyword(2) | HATS |
| Keyword(3) | SAMAR |
| Keyword(4) | Headphones |
| Keyword(5) | Earphones |
| Keyword(6) | Measuring |
| Keyword(7) | Noise canc |
| Keyword(8) | Canal-type |
| Keyword(9) | EN50332 |
| 1st Author's Name | Kiyofumi INANAGA |
| 1st Author's Affiliation | Institute of Gerontology, The University of Tokyo() |
| 2nd Author's Name | Tohru IFUKUBE |
| 2nd Author's Affiliation | Institute of Gerontology, The University of Tokyo |
| 3rd Author's Name | Tominori KIMURA |
| 3rd Author's Affiliation | Technica Fukui Co., Ltd,. ENGINEERING DEPT |
| 4th Author's Name | Terumasa YAMAMURA |
| 4th Author's Affiliation | Technica Fukui Co., Ltd,. ENGINEERING DEPT |
| Date | 2012-03-16 |
| Paper # | EA2011-121 |
| Volume (vol) | vol.111 |
| Number (no) | 490 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |