Transactions of the Korean Society for Noise and Vibration Engineering (한국소음진동공학회논문집)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Personal Monitor & TV Audio System by Using Loudspeaker Array

스피커 배열을 이용한 개인용 모니터와 TV의 오디오 시스템

  • 이찬희 (한국과학기술원 소음진동제어센터) ;
  • 장지호 (한국과학기술원 소음진동제어센터) ;
  • 박진영 (한국과학기술원 소음진동제어센터) ;
  • 김양한 (한국과학기술원 소음진동제어센터)
  • Published : 2008.07.20
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Abstract

Including a TV set and a monitor, personal audio system is raising a great interest. In this study, we applied a method to make a good bright zone around the user and dark zone to other region by maximizing the ratio of sound energy between the bright and dark zone. It has been well known as acoustic contrast control. We have attempted to use a line loudspeaker array system to localize the sound in our listening zone. It depends on the size of the zone and array parameters, for example, array size, loudspeaker unit spacing, wave length of sound. We have considered these parameters as spatial variables and studied the effects. And we have found that each spatial variable has its own characteristic and shows very different effect. Genetic algorithms are introduced to find out the optimum value of spatial variables. As a result, we can improve the result of the acoustic contrast control by optimum value of spatial variables.

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References

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Cited by

  1. Sweet Spot Analysis of Linear Array System with a Large Number of Loudspeakers by Geometrical Approach Method vol.23, pp.11, 2013, https://doi.org/10.5050/KSNVE.2013.23.11.951