Abstract
When conventional first order Ambisonics system uses four loudspeaker with platonic solid layout to reconstruct sound field, the 3D acoustic field effect is limited. A new signal distribution method is proposed to enhance the reproduced field without increasing loudspeakers. First, a platonic solid is extended to get more new vertexes, based on the traditional Ambisonics signal distribution method, original field signal is distributed to loudspeakers at original and new vertexes of platonic solid. Second, signals of loudspeakers at new vertexes are distributed to loudspeakers at original vertexes by a new 3D panning method, then loudspeakers at new vertexes of platonic solid are deleted, only original vertexes of platonic solid are left. The proposed method can improve the quality of the reconstructed sound field and will not increase the complexity of loudspeaker layout in practice. Results are verified through objective and subjective experiments.
R. Hu—The research was supported by National Nature Science Foundation of China (61231015, 61201169), National High Technology Research and Development Program of China (863 Program) (2015AA016306), Science and Technology Plan Projects of Shenzhen (ZDSYS2014050916575763), National Nature Science Foundation of China (61201340), the Fundamental Research Funds for the Central Universities (2042015kf0206).
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Gerson, M.A.: Ambisonics. Part two: Studio Tech. Studio Sound. 17, 24–30 (1975)
Bamford, J.S.: An Analysis of Ambisonics Sound Systems of First and Second Order. Ph.D. thesis, University of Waterloo, Waterloo (1995)
Daniel, J., Nicol, R., Moreau, S.: Further investigations of high order ambisonics and wave field synthesis for holophonic sound imaging. In: proceedings of the 114th Audio Engineering Society Convention, Amsterdam, Nertherlands (2003)
Daniel, J.: Représentation De Champs Acoustiques, Application à la Transmission et à la Reproduction De Scènes Sonores Complexes Dans Un contexte Multimédia. Ph.D. thesis, University Paris, Paris (2000)
Poletti, M.: Three-dimensional surround sound systems based on spherical harmonics. J. Audio Eng. Soc. 53(11), 1004–1025 (2005)
Spors, S., Ahrens, J.: Comparison of Higer-order Ambisonics and Wave Field Synthesis with Respect to Spatial Aliasing Artifacts. In: proceedings of the 19th International Congress on Acoustics. Madrid, Spain (2007)
Berkhout, A.J.: A holographic approach to acoustic control. J. Audio Eng. Soc. 36(12), 977–995 (1998)
Pulkki, V.: Virtual sound source positioning using vector base amplitude panning. J. Audio Eng. Soc. 45(6), 456–466 (1997)
Blauert, J.P.: Spatial Hearing. MIT, Revised edition, Cambridge (1997)
Kearney, G., et al.: Distance perception in interactive virtual acoustic environments using first and higher order ambisonic sound fields. Acta Acustica United Acustica 98(1), 68–71 (2012)
Ward, D.B., Abhayapala, T.D.: Reproduction of a plane-wave sound field using an array of loudspeakers. IEEE Trans. Speech Audio Process. 9(6), 697–707 (2001)
Ando, A.: Conversion of multichannel sound signal maintaining physical properties of sound in reproduced sound field. IEEE Trans. Audio, Speech, Lang. Process. 19(6), 1467–1475 (2011)
Moré, J.J., Sorensen, D.C.: Computing a trust region step. SIAM J. Sci. Stat. Comput. 3, 553–572 (1983)
Sloane, N.J.A.: Spherical Codes (2006). http://neilsloane.com/packings/
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Wang, S., Hu, R., Chen, S., Wang, X., Yang, Y., Tu, W. (2015). 3D Panning Based Sound Field Enhancement Method for Ambisonics. In: Ho, YS., Sang, J., Ro, Y., Kim, J., Wu, F. (eds) Advances in Multimedia Information Processing -- PCM 2015. PCM 2015. Lecture Notes in Computer Science(), vol 9314. Springer, Cham. https://doi.org/10.1007/978-3-319-24075-6_14
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DOI: https://doi.org/10.1007/978-3-319-24075-6_14
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