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

被引：0
|
作者：
Schlieper, Roman [1 ]
Li, Song [1 ]
Preihs, Stephan [1 ]
Peissig, Juergen [1 ]
机构：
[1] Leibniz Univ Hannover, Inst Commun Technol, Hannover, Germany
来源：
2019 AES INTERNATIONAL CONFERENCE ON HEADPHONE TECHNOLOGY | 2019年
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D O I：
暂无
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
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.
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页数：6
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