Maximization of acoustic energy difference between two spaces

The Journal of the Acoustical Society of America
Mincheol ShinJeongil Seo

Abstract

There has recently been an increasing interest in the generation of a sound field that is audible in one spatial region and inaudible in an adjacent region. The method proposed here ensures the control of the amplitude and phase of multiple acoustic sources in order to maximize the acoustic energy difference between two adjacent regions while also ensuring that evenly distributed source strengths are used. The performance of the method proposed is evaluated by computer simulations and experiments with real loudspeaker arrays in the shape of a circle and a sphere. The proposed method gives an improvement in the efficiency of radiation into the space in which the sound should be audible, while maintaining the acoustic pressure difference between two acoustic spaces. This is shown to give an improvement of performance compared to the contrast control method previously proposed.

References

May 11, 2002·The Journal of the Acoustical Society of America·Joung-Woo Choi, Yang-Hann Kim
May 20, 2006·The Journal of the Acoustical Society of America·Stephen J Elliott, Matthew Jones
Apr 10, 2009·The Journal of the Acoustical Society of America·Ji-Ho ChangYang-Hann Kim
Oct 10, 2009·Proceedings of the National Academy of Sciences of the United States of America·Jihoon ChangCheong-Hee Chang

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Citations

Sep 23, 2014·The Journal of the Acoustical Society of America·Philip ColemanJan Abildgaard Pedersen
Jun 21, 2012·The Journal of the Acoustical Society of America·Ji-Ho Chang, Finn Jacobsen
Sep 23, 2014·The Journal of the Acoustical Society of America·Yefeng CaiJun Yang
Apr 6, 2013·The Journal of the Acoustical Society of America·Ji-Ho Chang, Finn Jacobsen
Dec 7, 2014·The Journal of the Acoustical Society of America·Marek OlikJan Abildgaard Pedersen
Oct 18, 2014·The Journal of the Acoustical Society of America·Philip ColemanJan Abildgaard Pedersen
Oct 18, 2014·The Journal of the Acoustical Society of America·Mingsian R BaiYu-Hao Hsieh
Apr 3, 2016·The Journal of the Acoustical Society of America·M A Poletti, F M Fazi
Feb 24, 2015·The Journal of the Acoustical Society of America·M A Poletti, F M Fazi
Feb 24, 2015·The Journal of the Acoustical Society of America·Sipei ZhaoIan Burnett
Aug 5, 2018·The Journal of the Acoustical Society of America·Jussi RämöSøren Holdt Jensen
Apr 5, 2017·The Journal of the Acoustical Society of America·Takuma Okamoto, Atsushi Sakaguchi
Dec 5, 2016·The Journal of the Acoustical Society of America·Wen ZhangFilippo Maria Fazi
Apr 2, 2018·The Journal of the Acoustical Society of America·M BuergerW Kellermann
Feb 6, 2017·The Journal of the Acoustical Society of America·Yann PascoStéphane Moreau
Jul 10, 2021·The Journal of the Acoustical Society of America·Min Zhu, Sipei Zhao
Jul 10, 2021·The Journal of the Acoustical Society of America·Meiling Hu, Jing Lu

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