Source placement for equalization in small enclosures

Stefanakis, N; Sarris, J; Cambourakis, G

dc.contributor.author	Stefanakis, N	en
dc.contributor.author	Sarris, J	en
dc.contributor.author	Cambourakis, G	en
dc.date.accessioned	2014-03-01T01:29:13Z
dc.date.available	2014-03-01T01:29:13Z
dc.date.issued	2008	en
dc.identifier.issn	1549-4950	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/19162
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-45849104772&partnerID=40&md5=c40b08eafc27a1ffc81a6972ab4c191f	en
dc.subject.classification	Acoustics	en
dc.subject.classification	Engineering, Multidisciplinary	en
dc.subject.other	Acoustic fields	en
dc.subject.other	Acoustics	en
dc.subject.other	Communication channels (information theory)	en
dc.subject.other	Control theory	en
dc.subject.other	Elastic waves	en
dc.subject.other	Enclosures	en
dc.subject.other	Military data processing	en
dc.subject.other	Robust control	en
dc.subject.other	Waves	en
dc.subject.other	(e ,3e) process	en
dc.subject.other	Direction of propagation	en
dc.subject.other	In order	en
dc.subject.other	Low frequency (LF)	en
dc.subject.other	Plane waves	en
dc.subject.other	simulation results	en
dc.subject.other	Sound equalization	en
dc.subject.other	Sound fields	en
dc.subject.other	Spatial robustness	en
dc.subject.other	Error detection	en
dc.title	Source placement for equalization in small enclosures	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	2008	en
heal.abstract	The results of a theoretical study of sound equalization in enclosures at low frequencies are presented. The sound field is controlled by sources distributed in the enclosure so that a certain region has a desired complex pressure corresponding to that of a traveling plane wave. The task is the detection of the optimum positions for a number of sources in order to minimize the energy of the error over the region of control. According to the direction of propagation, the sources should be placed so as to couple with the modes that will benefit the reproduction of the plane wave (the ""desired"" modes) but not with those that will deteriorate it (the ""undesired"" modes). Simulation results in rectangular rooms and in a car cavity show the benefits of source placement in terms of reduced overall error and increased spatial robustness in the equalization process. Additional benefits, which can be derived by proper placement of the listening zone, are also discussed.	en
heal.publisher	AUDIO ENGINEERING SOC	en
heal.journalName	AES: Journal of the Audio Engineering Society	en
dc.identifier.isi	ISI:000256560400002	en
dc.identifier.volume	56	en
dc.identifier.issue	5	en
dc.identifier.spage	357	en
dc.identifier.epage	371	en