Ellipsoidal reflector for measuring oto-acoustic emissions

Bastian Epp; Ville  Pulkki; Vesa  Heiskanen

Ellipsoidal reflector for measuring oto-acoustic emissions

Bastian Epp
, Ville Pulkki
, Vesa Heiskanen

Aalto University

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

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Abstract

A truncated prolate ellipsoidal reflector having the ear canal of a listener at one focal point and large- diaphragm low-noise microphone at the other focal point is proposed for free-field recordings of oto-acoustic emissions. A prototype reflector consisting of three pieces is presented, which enables measuring the response of the system with different truncations. The response of the system is measured with a miniature loud- speaker, and proof-of-concept measurements of oto-acoustic emissions are presented. The effect of truncation and other physical parameters to the performance of the system are discussed.

Original language	English
Title of host publication	Proceedings of the 137th AES Convention
Number of pages	4
Publisher	Audio Engineering Society
Publication date	2014
Publication status	Published - 2014
Event	AES 137^th Convention - Los Angeles, United States Duration: 9 Oct 2014 → 12 Oct 2014

Conference

Conference	AES 137^th Convention
Country/Territory	United States
City	Los Angeles
Period	09/10/2014 → 12/10/2014

Bibliographical note

Convention e-Brief 181

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@inproceedings{02d55c07518640f0b2926cc9fd64e3e3,

title = "Ellipsoidal reflector for measuring oto-acoustic emissions",

abstract = "A truncated prolate ellipsoidal reflector having the ear canal of a listener at one focal point and large- diaphragm low-noise microphone at the other focal point is proposed for free-field recordings of oto-acoustic emissions. A prototype reflector consisting of three pieces is presented, which enables measuring the response of the system with different truncations. The response of the system is measured with a miniature loud- speaker, and proof-of-concept measurements of oto-acoustic emissions are presented. The effect of truncation and other physical parameters to the performance of the system are discussed.",

author = "Bastian Epp and Ville Pulkki and Vesa Heiskanen",

note = "Convention e-Brief 181; AES 137<sup>th</sup> Convention ; Conference date: 09-10-2014 Through 12-10-2014",

year = "2014",

language = "English",

booktitle = "Proceedings of the 137th AES Convention",

publisher = "Audio Engineering Society",

}

TY - GEN

T1 - Ellipsoidal reflector for measuring oto-acoustic emissions

AU - Epp, Bastian

AU - Pulkki, Ville

AU - Heiskanen, Vesa

N1 - Convention e-Brief 181

PY - 2014

Y1 - 2014

N2 - A truncated prolate ellipsoidal reflector having the ear canal of a listener at one focal point and large- diaphragm low-noise microphone at the other focal point is proposed for free-field recordings of oto-acoustic emissions. A prototype reflector consisting of three pieces is presented, which enables measuring the response of the system with different truncations. The response of the system is measured with a miniature loud- speaker, and proof-of-concept measurements of oto-acoustic emissions are presented. The effect of truncation and other physical parameters to the performance of the system are discussed.

AB - A truncated prolate ellipsoidal reflector having the ear canal of a listener at one focal point and large- diaphragm low-noise microphone at the other focal point is proposed for free-field recordings of oto-acoustic emissions. A prototype reflector consisting of three pieces is presented, which enables measuring the response of the system with different truncations. The response of the system is measured with a miniature loud- speaker, and proof-of-concept measurements of oto-acoustic emissions are presented. The effect of truncation and other physical parameters to the performance of the system are discussed.

M3 - Article in proceedings

BT - Proceedings of the 137th AES Convention

PB - Audio Engineering Society

T2 - AES 137<sup>th</sup> Convention

Y2 - 9 October 2014 through 12 October 2014

ER -

Ellipsoidal reflector for measuring oto-acoustic emissions

Abstract

Conference

Bibliographical note

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