Journal of the Institute of Electronics and Information Engineers (전자공학회논문지)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Enhanced Amplitude Panning for Virtual Source Imaging

가상 음원 이미징을 위한 향상된 진폭 패닝 기법

  • Hyun, Dong-Il (Department of Electrical and Electronic Engineering, Yonsei University) ;
  • Park, Young-Cheol (Computer and Telecommunications Engineering Division, Yonsei University) ;
  • Youn, Dae Hee (Department of Electrical and Electronic Engineering, Yonsei University)
  • 현동일 (연세대학교 전기전자공학과) ;
  • 박영철 (연세대학교 컴퓨터정보통신공학부) ;
  • 윤대희 (연세대학교 전기전자공학과)
  • Received : 2012.11.26
  • Published : 2013.03.25
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Abstract

In this paper, the problems of the conventional amplitude panning method for a stereophonic panning system are analyzed. We observed that the distortion showed a feedforward comb filter response. As a remedy to this distortion, we propose a stereophonic panning system using a feedback comb filter. The comb filter is designed to minimize the difference between interaural level difference(ILD) of the proposed system and that of HRTF because ILD is most salient cue for the perception of the source direction. The proposed system is configured to operate selectively for the frequency band related to the source direction. The performance of the proposed system is verified by subjective listening tests.

본 논문에서는 스테레오 패닝 시스템에 대해 기존의 진폭 패닝이 가지는 문제점을 분석하였다. 이러한 문제점이 피드포워드 빗형 필터 형태로 발생하는 것을 관찰하고 이를 해결하기 위하여 피드백 빗형 필터를 사용한 스테레오 진폭 패닝 시스템을 제안하였다. 방향 인지에 대해 중요한 단서인 양이간레벨차의 차이가 최소가 되도록 하여 빗형 필터를 설계하였으며 제안된 시스템이 방향 인지에 관련된 대역에 대해 선택적으로 동작하도록 주파수 대역을 설정하였다. 제안된 시스템의 성능을 주관적 음질 평가를 통하여 검증하였다.

Keywords

References

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