Equalization of Loudspeaker and Room Responses Using Kautz Filters: Direct Least Squares Design

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Karjalainen, Matti
dc.contributor.author Paatero, Tuomas
dc.date.accessioned 2017-10-15T20:41:02Z
dc.date.available 2017-10-15T20:41:02Z
dc.date.issued 2007
dc.identifier.citation Karjalainen , M & Paatero , T 2007 , ' Equalization of Loudspeaker and Room Responses Using Kautz Filters: Direct Least Squares Design ' EURASIP Journal on Advances in Signal Processing , vol 2006 , no. December , 060949 , pp. 1-13 . DOI: 10.1155/2007/60949 en
dc.identifier.issn 1687-6180
dc.identifier.other PURE UUID: 9542d13c-7fd2-4d75-9197-e04c0c06b02f
dc.identifier.other PURE ITEMURL: https://research.aalto.fi/en/publications/equalization-of-loudspeaker-and-room-responses-using-kautz-filters-direct-least-squares-design(9542d13c-7fd2-4d75-9197-e04c0c06b02f).html
dc.identifier.other PURE FILEURL: https://research.aalto.fi/files/14857079/10.1155_2007_60949.pdf
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/28250
dc.description.abstract DSP-based correction of loudspeaker and room responses is becoming an important part of improving sound reproduction. Such response equalization (EQ) is based on using a digital filter in cascade with the reproduction channel to counteract the response errors introduced by loudspeakers and room acoustics. Several FIR and IIR filter design techniques have been proposed for equalization purposes. In this paper we investigate Kautz filters, an interesting class of IIR filters, from the point of view of direct least squares EQ design. Kautz filters can be seen as generalizations of FIR filters and their frequency-warped counterparts. They provide a flexible means to obtain desired frequency resolution behavior, which allows low filter orders even for complex corrections. Kautz filters have also the desirable property to avoid inverting dips in transfer function to sharp and long-ringing resonances in the equalizer. Furthermore, the direct least squares design is applicable to nonminimum-phase EQ design and allowsusing a desired target response. The proposed method is demonstrated by case examples with measured and synthetic loudspeaker and room responses. en
dc.format.extent 1-13
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation.ispartofseries EURASIP Journal on Advances in Signal Processing en
dc.relation.ispartofseries Volume 2006, issue December en
dc.rights openAccess en
dc.title Equalization of Loudspeaker and Room Responses Using Kautz Filters: Direct Least Squares Design en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department School services, ELEC
dc.contributor.department Department of Signal Processing and Acoustics en
dc.subject.keyword audio equalization
dc.subject.keyword audio reproduction
dc.subject.keyword Kautz filters
dc.subject.keyword loudspeakers
dc.identifier.urn URN:NBN:fi:aalto-201710157110
dc.identifier.doi 10.1155/2007/60949
dc.type.version publishedVersion

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