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Conference Paper

The Effect of Active Noise Cancellation on the Acoustic Impedance of Headphones

Authors: Schlieper, Roman; Li, Song; Preihs, Stephan; Peissig, Jürgen

AES Conference: 2019 AES INTERNATIONAL CONFERENCE ON HEADPHONE TECHNOLOGY · Paper 35 · August 2019

Abstract

This paper discusses the impact of Active Noise Cancellation (ANC) functionality on the acoustic impedance of headphones. We therefore show a method for the qualitative analysis of ANC headphone systems considering the occlusion effect (OE) and the “openness” of headphones. A total of 11 different headphones were measured on an acoustic impedance tube and the obtained acoustic impedance of these headphones was compared and discussed. The measurement results show that feedback-based ANC systems have a positive impact on the “openness” of headphones, since the acoustic impedance of closed headphones with ANC switched on is reduced towards the acoustic impedance of open headphones.

Details

Published in
AES Conference: 2019 AES INTERNATIONAL CONFERENCE ON HEADPHONE TECHNOLOGY
Paper number
35
Publication date
August 6, 2019
Affiliation
Institute of Communications Technology, Gottfried Wilhelm Leibniz Universität Hannover, Hannover, Germany (See document for exact affiliation information.)
Type
Conference Paper