A selective array activation method for the generation of a focused source considering listening position

The Journal of the Acoustical Society of America
Min-Ho SongYang-Hann Kim

Abstract

A focused source can provide an auditory illusion of a virtual source placed between the loudspeaker array and the listener. When a focused source is generated by time-reversed acoustic focusing solution, its use as a virtual source is limited due to artifacts caused by convergent waves traveling towards the focusing point. This paper proposes an array activation method to reduce the artifacts for a selected listening point inside an array of arbitrary shape. Results show that energy of convergent waves can be reduced up to 60 dB for a large region including the selected listening point.

References

May 11, 2002·The Journal of the Acoustical Society of America·Joung-Woo Choi, Yang-Hann Kim
Mar 27, 2003·The Journal of the Acoustical Society of America·Sylvain YonMathias Fink
Apr 10, 2009·Journal of Neurophysiology·Thomas Künsting, Hartwig Spors

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Citations

Aug 24, 2013·The Journal of the Acoustical Society of America·Jung-Min LeeYang-Hann Kim
Jul 19, 2013·The Journal of the Acoustical Society of America·Jianwen ZhengKai Chen
Jun 22, 2015·The Journal of the Acoustical Society of America·Mingsian R Bai, Yu-Hao Hsieh

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