Browse > Article

A Study on Multichannel Format Conversion and Representation of Spatial Sound Information  

Jeon, Se-Woon (School of Electrical and Electronic Engineering, Yonsei University)
Park, Young-Cheol (Computer and Telecommunications Engineering Division, Yonsei University)
Youn, Dae-Hee (School of Electrical and Electronic Engineering, Yonsei University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea SP / v.47, no.5, 2010 , pp. 34-44 More about this Journal
Abstract
In this study, the algorithms for multichannel format conversion and robust representation of spatial sound information are proposed. In the spatial analysis, the directional information of sound source is estimated and sound sources are separated from stereo signal. In the spatial resynthesis, the multichannel matrixing with spatial repanning and post-scaling method are applied to represent a spatial sound. The conventional method about channel format conversion has the problem that the energy of sound source and the spatial information are not preserved in the desired channel format. Because the proposed method is designed in consideration of the target multichannel format and its resynthesized signal, the robust representation of spatial sound can be achieved in the multichannel format conversion.
Keywords
다채널;입체 음향;음원 분리;공간 정보;업믹스;
Citations & Related Records
연도 인용수 순위
  • Reference
1 J. Merimaa, Michael M. Goodwin, and J.-M. Jot, "Correlation-based ambient extraction from stereo recordings," AES 123rd Conv., New York, 2007.
2 J. Blauert, Spatial Hearing: The Psychophysics of Human Sound Localization. Cambridge, MA: MIT Press, 1997.
3 M.R. Bai and Geng-Yu Shih, "Upmixing and Downmixing Two-channel Stereo Audio for Consumer Electronics," IEEE Trans. on Consumer Electronics, vol. 53, no. 3, pp. 1011-1019, Aug. 2007.   DOI
4 J. Breebaart and E. Schuijers, "Phantom Materialization: A Novel Method to Enhance Stereo Audio Reproduction on Headphones," IEEE Trans. on Audio, Speech, and Language Processing, vol. 15, no. 8, pp. 1503-1511, Nov. 2008.
5 ITU-R. Recommendation BS.775-1, Multichannel stereophonic sound systems with and without accompanying picture. International Telecommunications Union Radiocommunication Assembly, 1994.
6 C. Avendano and J.-M. Jot, "A frequencydomain approach to multichannel upmix," J. Audio Eng. Soc., vol. 52, no. 7/8, pp. 740-749, July/August 2004.
7 V. Pulkki, "Virtual sound source positioning using vector base amplitude panning," J. Audio Eng. Soc., vol. 45, no. 6, pp. 456-466, June 1997.
8 J. Usher and J. Benesty, "Enhancement of spatial sound quality: A new reverberationextraction audio upmixer," IEEE Trans. on Audio, Speech, and Language Processing, vol. 15, no. 7, pp. 2141-2150, Sept. 2007.   DOI
9 Michael M. Goodwin and J.-M. Jot, "Multi-channel surround format conversion and generalized upmix," in Proc. AES 30th Int. Conf., SaariselkAa, March 2007, paper 30.
10 R. Irwan and Ronald M. Aarts, "Two-to-five channel sound processing," J. Audio Eng. Soc., vol. 50, no. 11, pp. 914-926, Nov. 2002.
11 Michael M. Goodwin and J.-M. Jot, "Primaryambient signal decomposition and vector-based localization for spatial audio coding and enhancement," IEEE Int. Conf. Acoustics, Speech and Signal Processing (ICASSP), vol. 1, pp. I-9-I-12, April 2007.
12 C. Faller, "Multiple-loudspeaker playback of stereo signals," J. Audio Eng. Soc., vol. 54, no. 11, pp. 1051-1064, Nov. 2006.
13 ITU-R BS.562.3, "Subjective assessment of sound quality", International Telecommunications Union, Geneva, Switzerland, 1990.
14 S.-W. Jeon, Y.-C. Park, S.-P. Lee, and D.-H. Youn, "Robust representation of spatial sound in stereo-to-multichannel upmix," AES 128th Conv., London, May 2010.
15 S. Haykin, Adaptive Filter Theory, 4th ed. Upper Saddle River, NJ: Prentice-Hall, 2002.
16 전세운, 박영철, 이석필, 윤대희, "방향 정보에 따른 가변적인 채널 게인 제어를 통한 다채널 벡터기반의 사운드 패닝 기술에 관한 연구," 한국통신학회 2010년도 하계종합학술발표회 논문집, 2010.
17 F. Rumsey, "Spatial quality evaluation for reproduced sound: Terminology, meaning, and a scene-based paradigm," J. Audio Eng. Soc., vol. 50, no. 9, pp. 651-666 Sept. 2002.
18 V. Pulkki, "Spatial sound generation and perception by amplitude panning techniques," PhD thesis, Helsinki University of Technology, Espoo, Finland, 2001.