Wide-area psychoacoustic correction for problematic room-modes using nonlinear bass synthesis

5.00
Hdl Handle:
http://hdl.handle.net/10545/229151
Title:
Wide-area psychoacoustic correction for problematic room-modes using nonlinear bass synthesis
Authors:
Hill, Adam J.; Hawksford, Malcolm O. J.
Abstract:
Small room acoustics are characterized by a limited number of dominant low-frequency room-modes that result in wide spatio-pressure variations that traditional room correction systems may find elusive to correct over a broad listening area. A psychoacoustic-based methodology is proposed whereby signal components coincident only with problematic modes are filtered and substituted by virtual bass components to forge an illusion of the suppressed frequencies. Although this approach can constitute a standalone correction system, the impetus for development is for use within well-established correction methodologies. A scalable and hierarchical approach is studied using subjective evaluation to confirm uniform wide-area performance. Bass synthesis exploits parallel nonlinear and phase vocoder generators with outputs blended as a function of transient and steady-state signal content.
Affiliation:
University of Essex
Citation:
JAES, vol. 59, no. 11, pp. 825-834, November 2011.
Publisher:
Audio Engineering Society
Journal:
Journal of the Audio Engineering Society
Issue Date:
Nov-2011
URI:
http://hdl.handle.net/10545/229151
Additional Links:
http://www.aes.org/e-lib/browse.cfm?elib=16150
Type:
Article
Language:
en_US
Appears in Collections:
Creative Technologies Research Group; Electrical, Electronic and Software Systems Research Group

Full metadata record

DC FieldValue Language
dc.contributor.authorHill, Adam J.en_GB
dc.contributor.authorHawksford, Malcolm O. J.en_GB
dc.date.accessioned2012-06-15T14:42:28Z-
dc.date.available2012-06-15T14:42:28Z-
dc.date.issued2011-11-
dc.identifier.citationJAES, vol. 59, no. 11, pp. 825-834, November 2011.en_GB
dc.identifier.urihttp://hdl.handle.net/10545/229151-
dc.description.abstractSmall room acoustics are characterized by a limited number of dominant low-frequency room-modes that result in wide spatio-pressure variations that traditional room correction systems may find elusive to correct over a broad listening area. A psychoacoustic-based methodology is proposed whereby signal components coincident only with problematic modes are filtered and substituted by virtual bass components to forge an illusion of the suppressed frequencies. Although this approach can constitute a standalone correction system, the impetus for development is for use within well-established correction methodologies. A scalable and hierarchical approach is studied using subjective evaluation to confirm uniform wide-area performance. Bass synthesis exploits parallel nonlinear and phase vocoder generators with outputs blended as a function of transient and steady-state signal content.en_GB
dc.language.isoen_USen
dc.publisherAudio Engineering Societyen_GB
dc.relation.urlhttp://www.aes.org/e-lib/browse.cfm?elib=16150en_GB
dc.subjectAcousticsen_GB
dc.subjectPsychoacousticsen_GB
dc.subjectNonlinear processingen_GB
dc.subjectVirtual bassen_GB
dc.subjectDigital signal processingen_GB
dc.subjectAudio engineeringen_GB
dc.titleWide-area psychoacoustic correction for problematic room-modes using nonlinear bass synthesisen_US
dc.typeArticleen
dc.contributor.departmentUniversity of Essexen_GB
dc.identifier.journalJournal of the Audio Engineering Societyen_GB
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