한국음향학회지 (The Journal of the Acoustical Society of Korea)

  • 제31권5호
  • /
  • Pages.340-351
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  • 2012
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  • 1225-4428(pISSN)
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  • 2287-3775(eISSN)
한국음향학회 (The Acoustical Society of Korea)
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입체음향효과 향상을 위한 스테레오-10.2채널 블라인드 업믹스 기법

Stereo-10.2Channel Blind Upmix Technique for the Enhanced 3D Sound

  • 최선웅 (연세대학교 전기전자공학과) ;
  • 현동일 (연세대학교 전기전자공학과) ;
  • 이석필 (전자부품연구원(KETI) 디지털미디어 연구센터) ;
  • 박영철 (연세대학교 컴퓨터정보통신공학부) ;
  • 윤대희 (연세대학교 전기전자공학과)
  • 투고 : 2012.02.29
  • 심사 : 2012.05.16
  • 발행 : 2012.07.31
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초록

본 논문에서는 입체음향효과의 향상을 위한 스테레오-10.2채널의 블라인드 업믹스 알고리즘을 제안하였다. 최근에, 소비자들은 더 나은 입체음향효과나 3D 사운드를 즐기길 원하고 다양한 멀티채널 포맷의 등장으로 업믹스 알고리즘들이 연구 되어 왔다. 그러나 기존의 업믹스 알고리즘들은 공간정보를 왜곡하는 문제점을 가지고 있었다. 이러한 문제점을 해결하기위해 전 후방 채널에 대한 이득 조절 및 10.2 채널의 각 채널별 믹싱 알고리즘을 제안한다. 기존의 상용화된 멀티채널 업믹스 알고리즘들과의 주관적 평가 실험결과 제안한 알고리즘은 입력신호의 공간정보를 유지하면서 입체음향효과를 향상시킨 것으로 확인되었다.

In this paper, we proposed the stereo-10.2channel blind upmix algorithm for the enhanced 3D sound. Recently, consumers want to enjoy better sound and the use of a various of multichannel configuration has been steadily improved. Thus, upmix algorithms have been researched. However, conventional upmix algorithms have the problem that distorts the spatial information of original source. To solve this problem and enhance the spatial sound quality, we proposed front and rear channel gain adjustment and 10.2 channel upmix algorithm for each additional channel. The listening test results show that it maintains spatial information of stereo input and enhances 3D sound effects unlike other conventional upmix algorithms.

키워드

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