Enhanced wide-area low-frequency sound reproduction in cinemas: Effective and practical alternatives to current sub-optimal calibration strategies

Hdl Handle:
http://hdl.handle.net/10545/583104
Title:
Enhanced wide-area low-frequency sound reproduction in cinemas: Effective and practical alternatives to current sub-optimal calibration strategies
Authors:
Hill, Adam J.; Hawksford, Malcolm O. J.; Newell, Philip
Abstract:
This paper explores strategies for achieving accurate wide-area low-frequency sound reproduction in cinemas. Current standards for B-Chain calibration call for single channel low-frequency equalization aided by either single-point or spatially-averaged response measurements, an approach only applicable to a reasonably spatially invariant low frequency response. A holistic approach to low-frequency coverage optimization is presented exploiting subwoofer arrays, their positioning and multi point signal processing. Acoustic-field examples are presented using finite difference time-domain (FDTD) modeling software that expose a potential for superior wide-area signal reconstruction over that achieved using the current standards and recommendations.
Affiliation:
University of Derby; University of Essex; Acoustic Consultant
Citation:
Hill, A.J.; M.O.J. Hawksford, P. Newell. Enhanced wide-area low-frequency sound reproduction in cinemas: Effective and practical alternatives to current sub-optimal calibration strategies. 57th International Conf. of the Audio Engineering Society, Hollywood, USA. March 2015.
Publisher:
Audio Engineering Society
Issue Date:
6-Mar-2015
URI:
http://hdl.handle.net/10545/583104
Additional Links:
http://www.aes.org/e-lib/browse.cfm?elib=17610
Type:
Article
Language:
en
Appears in Collections:
Department of Mechanical Engineering & the Built Environment

Full metadata record

DC FieldValue Language
dc.contributor.authorHill, Adam J.en
dc.contributor.authorHawksford, Malcolm O. J.en
dc.contributor.authorNewell, Philipen
dc.date.accessioned2015-12-02T09:41:41Z-
dc.date.available2015-12-02T09:41:41Zen
dc.date.issued2015-03-06-
dc.identifier.citationHill, A.J.; M.O.J. Hawksford, P. Newell. Enhanced wide-area low-frequency sound reproduction in cinemas: Effective and practical alternatives to current sub-optimal calibration strategies. 57th International Conf. of the Audio Engineering Society, Hollywood, USA. March 2015.en
dc.identifier.urihttp://hdl.handle.net/10545/583104-
dc.description.abstractThis paper explores strategies for achieving accurate wide-area low-frequency sound reproduction in cinemas. Current standards for B-Chain calibration call for single channel low-frequency equalization aided by either single-point or spatially-averaged response measurements, an approach only applicable to a reasonably spatially invariant low frequency response. A holistic approach to low-frequency coverage optimization is presented exploiting subwoofer arrays, their positioning and multi point signal processing. Acoustic-field examples are presented using finite difference time-domain (FDTD) modeling software that expose a potential for superior wide-area signal reconstruction over that achieved using the current standards and recommendations.en
dc.language.isoenen
dc.publisherAudio Engineering Societyen
dc.relation.urlhttp://www.aes.org/e-lib/browse.cfm?elib=17610en
dc.subjectAudioen
dc.subjectAudio engineeringen
dc.subjectAcousticsen
dc.subjectDigital signal processingen
dc.subjectCinema sounden
dc.titleEnhanced wide-area low-frequency sound reproduction in cinemas: Effective and practical alternatives to current sub-optimal calibration strategiesen
dc.typeArticleen
dc.contributor.departmentUniversity of Derbyen
dc.contributor.departmentUniversity of Essexen
dc.contributor.departmentAcoustic Consultanten
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