Papers

반향 환경에서의 스피커 어레이를 이용한 소리 집중 기술

Domestic Journal
2006~2010
작성자
한혜원
작성일
2009-07-01 01:13
조회
1666
Authors : SoonHo Beak, Myung-Suk Song, Seok-Pil Lee, Hong-Goo Kang

Year : 2009

Publisher / Conference : 한국음향학회지

Volume : 28, 제 6호

Page : 548-556

본 논문에서는 반향이 있는 환경에서 스피커 에레이를 이용하여 소리를 집중 시키는 기술을 제안한다. 제안 방법은 각 스피커에서 원하는 지점까지의 시스템 응답 함수의 에너지 합을 최대화함으로써 반향이 있는 환경에서도 원하는 지점에서의 음압을 최대화할수 있다. 기존에 제안된 광대역 빔 형성기 (Broadband beamformer)를 이용한 소리 집중 기술의 반향 환경 하에서의 문제점에 대하여 살펴본 후, 제안 방법이 갖는 장점을 서술한다. 16채널로 구성된 스피커 어레이 시스템을 이용한 실험 결과를 통해 반향이 있는 환경에서 제안 방법이 음압 집중도 측면에서 기존 방법보다 우수한 성능을 나타냄을 확인하였다.
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