Effects of physical configurations on ANC headphone performance

Wu, L; Qiu, X; Ma, J; Guo, Y

Effects of physical configurations on ANC headphone performance

Wu, L Qiu, X

Ma, J Guo, Y

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Publication Type:: Conference Proceeding
Citation:: 24th International Congress on Sound and Vibration, ICSV 2017, 2017
Issue Date:: 2017-01-01

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Field	Value	Language
dc.contributor.author	Wu, L	en_US
dc.contributor.author	Qiu, X https://orcid.org/0000-0002-5181-1220	en_US
dc.contributor.author	Ma, J	en_US
dc.contributor.author	Guo, Y	en_US
dc.date.issued	2017-01-01	en_US
dc.identifier.citation	24th International Congress on Sound and Vibration, ICSV 2017, 2017	en_US
dc.identifier.uri	http://hdl.handle.net/10453/129878
dc.description.abstract	The ear-shell which includes a rigid shell and a soft cushion, the reference microphone, the error microphone and the secondary loudspeaker are four main parts of the physical configuration of an active noise control (ANC) headphone. To investigate their influences on ANC performance, the ear-shells of ANC headphones from two different manufacturers are selected and the same method is used to optimize their ANC controllers. It is shown that the ANC performance is different due to the disparities of physical configuration. The coherence between the reference microphone and the error microphone signals is a measure to evaluate physical configuration effects on feedforward structures, and the passive attenuation affected by the rigid shell and the soft cushion is reflected in the magnitude frequency response from the reference microphone to error microphone. The delay of the secondary path is a critical factor to influence the performance of both feedforward and feedback structures.	en_US
dc.relation.ispartof	24th International Congress on Sound and Vibration, ICSV 2017	en_US
dc.rights	info:eu-repo/semantics/closedAccess
dc.title	Effects of physical configurations on ANC headphone performance	en_US
dc.type	Conference Proceeding
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Mechanical and Mechatronic Engineering
utslib.copyright.status	closed_access	*
pubs.publication-status	Published	en_US

Abstract:

The ear-shell which includes a rigid shell and a soft cushion, the reference microphone, the error microphone and the secondary loudspeaker are four main parts of the physical configuration of an active noise control (ANC) headphone. To investigate their influences on ANC performance, the ear-shells of ANC headphones from two different manufacturers are selected and the same method is used to optimize their ANC controllers. It is shown that the ANC performance is different due to the disparities of physical configuration. The coherence between the reference microphone and the error microphone signals is a measure to evaluate physical configuration effects on feedforward structures, and the passive attenuation affected by the rigid shell and the soft cushion is reflected in the magnitude frequency response from the reference microphone to error microphone. The delay of the secondary path is a critical factor to influence the performance of both feedforward and feedback structures.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/129878