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Convention Paper

Measuring Directional Characteristics of In-Ear Recording Devices

Authors: Christensen, Flemming; Hoffmann, Pablo F.; Hammershøi, Dorte

AES Convention 134 · Paper 8883 · May 2013

Abstract

With the availability of small in-ear headphones and miniature microphones it is possible to construct combined in-ear devices for binaural recording and playback. When mounting a microphone on the outside of an insert earphone the microphone position deviates from ideal positions in the ear canal. The pinna and thereby also the natural sound transmission are altered by the inserted device. This paper presents a methodology for accurately measuring the directional dependent transfer functions of such in-ear devices. Pilot measurements on a commercially available device are presented and possibilities for electronic compensation of the non-ideal characteristics are considered.

Details

Published in
AES Convention 134
AES Convention
134
Paper number
8883
Publication date
May 6, 2013
Session subject
Spatial Audio
Affiliation
Aalborg University, Aalborg, Denmark (See document for exact affiliation information.)
Type
Convention Paper