A three-dimensional audio signal generating method for aspheric loudspeaker array

3D audio technology has been coming gradually into the market with its use in the film industry. However, the existing 3D-audio generating methods are based on the spherical loudspeaker array. Given that a typical family can hardly allow a spherical loudspeaker array, the current algorithms have impeded the progress of the popularization and the development of the multimedia industry to some extent. In this paper, we propose a novel method which is available for the aspherical loudspeaker array. Based on the physical properties of sound signals in air, the proposed method develops a 3D-audio signal generating and distributing model, through which the 3D effect in irregular loudspeaker array can be reproduced. Our preliminary results show that there are no obvious differences between the original source and the virtual source reproduced by our model.

[1]  José Roberto de França Arruda,et al.  Application of Acoustic Radiation Modes in the Directivity Control by a Spherical Loudspeaker Array , 2010 .

[2]  Xiang Jing,et al.  The Improved V.29 Fax Demodulation Algorithm in Multimedia Communication , 2013, 2013 Ninth International Conference on Intelligent Information Hiding and Multimedia Signal Processing.

[3]  Boaz Rafaely,et al.  Spherical loudspeaker array for local active control of sound. , 2009, The Journal of the Acoustical Society of America.

[4]  Pratik Shah,et al.  Calibration and 3-D sound reproduction in the Immersive Audio Environment , 2011, 2011 IEEE International Conference on Multimedia and Expo.

[5]  HyungTae Kim,et al.  Semi-Continuous Interpolation Algorithm for Aspherical Surface Grinding , 2005, TENCON 2005 - 2005 IEEE Region 10 Conference.

[6]  V. Pulkki,et al.  Multichannel audio rendering using amplitude panning [DSP Applications] , 2008, IEEE Signal Processing Magazine.

[7]  HaeJeong Yang,et al.  Control Method for the Tool Path in Aspherical Surface Grinding and Polishing , 2006 .

[8]  Hu Ruimin,et al.  Gain Factors Calibration in 3D Sound Reproduction Using VBAP , 2013, IIH-MSP 2013.

[9]  Thushara D. Abhayapala,et al.  Three-Dimensional Sound Field Reproduction Using Multiple Circular Loudspeaker Arrays , 2011, IEEE Transactions on Audio, Speech, and Language Processing.

[10]  Michael Vorländer,et al.  Virtual Reality System with Integrated Sound Field Simulation and Reproduction , 2007, EURASIP J. Adv. Signal Process..