Acoustic brightness/contrast control performance due to transfer function errors

Jin-Young Park, Minho Song, Jiho Chang, Yang-Hann Kim

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

It has been demonstrated that acoustic contrast control is one of effective means to maximize the acoustic energy ratio between acoustically bright zone (listener region) and dark zone (elsewhere)1. The control requires to measure transfer functions between input and output of the system. The input can be any signals that feed into the speaker array, and the output is sound pressures at the locations that we want to make bright or dark. However, if there are errors in measuring transfer function due to measurement noises, measurement position offset, or any kinds of disturbances in measurement, the desired performance might be poor. These errors degrade the system performance whose measure is brightness error and contrast error. In this paper, the errors are expressed in terms of magnitudes and phases in general, and we have formulated the performance variation of acoustic brightness/contrast control due to the errors in measuring transfer functions mathematically and evaluated its validity through the simulation results.
Original languageEnglish
Title of host publicationProceedings of 16th International Congress on Sound and Vibration 2009, ICSV 2009
PublisherInternational Institute of Acoustics and Vibrations
Publication date2009
Pages3887-3894
ISBN (Print)978-1-61567-736-8
Publication statusPublished - 2009
Externally publishedYes
Event16th International Congress on Sound and Vibration 2009 (ICSV16) - Krakow, Poland
Duration: 5 Jul 20099 Jul 2009
http://www.iiav.org/icsv16/

Conference

Conference16th International Congress on Sound and Vibration 2009 (ICSV16)
Country/TerritoryPoland
CityKrakow
Period05/07/200909/07/2009
Internet address

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