Development of a Virtual Acoustic Showroom for Simulating Listening Environments and Audio Speakers

dc.contributor.authorCollins, Christopher Michaelen
dc.contributor.committeechairJohnson, Martin E.en
dc.contributor.committeecochairCarneal, James P.en
dc.contributor.committeememberBowman, Douglas A.en
dc.contributor.departmentMechanical Engineeringen
dc.date.accessioned2011-08-06T16:01:41Zen
dc.date.adate2004-06-17en
dc.date.available2011-08-06T16:01:41Zen
dc.date.issued2004-05-05en
dc.date.rdate2006-06-17en
dc.date.sdate2004-06-03en
dc.description.abstractVirtual acoustic techniques can be used to create virtual listening environments for multiple purposes. Using multi-speaker reproduction, a physical environment can take on the acoustical appearance of another environment. Implementation of this environment auralization could change the way customers evaluate speakers in a retail store. The objective of this research is to develop a virtual acoustic showroom using a multi- speaker system. The two main components to the virtual acoustic showroom are simulating living environments using the image source method, and simulating speaker responses using inverse filtering. The image source method is used to simulate realistic living environments by filtering the environment impulse response by frequency-dependant absorption coefficients of typical building materials. Psychoacoustic tests show that listeners can match virtual acoustic cues with appropriate virtual visual cues. Inverse filtering is used to "replace" the frequency response function of one speaker with another, allowing a single set of speakers to represent any number of other speakers. Psychoacoustic tests show that listeners could not distinguish the difference between the original speaker and the reference speaker that was mimicking the original. The two components of this system are shown to be accurate both empirically and psychologically.en
dc.description.degreeMaster of Scienceen
dc.format.mediumETDen
dc.identifier.otheretd-06032004-123749en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-06032004-123749en
dc.identifier.urihttp://hdl.handle.net/10919/9965en
dc.publisherVirginia Techen
dc.relation.haspartCollins_Thesis.pdfen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectVirtual Acousticsen
dc.subjectImage Sourceen
dc.subjectInverse Filteren
dc.titleDevelopment of a Virtual Acoustic Showroom for Simulating Listening Environments and Audio Speakersen
dc.typeThesisen
thesis.degree.disciplineMechanical Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen
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