Hi Junfeng,

For theory and to understand the problem you should have a look at the references mentioned before, I attach the titles of some key studies:

B. S. Atal and M. R. Schroeder (1962) "Apparent sound source translator", U.S. Patent, 3236949.

P. Damaske (1971) "Head-Related Two-Channel Stereophony with Loudspeaker Reproduction". Journal of the Acoustical Society of America, vol. 50, pp. 1109-1115.

N. Sakamoto, T. Gotoh, T. Kogure and M. Shimbo (1982) "Controlling Sound-Image Localization in Stereophonic Reproduction: Part II" Journal of the Audio Engineering Society, vol. 30, pp. 719-722.

J. Köring and A. Schmitz (1993) "Simplifying Cancellation of Cross-Talk for playback of Head- Related Recordings in a 2-Speaker System" Acustica, vol. 79, pp. 221-232.

P. A. Nelson, O. Kirkeby, T. Takeuchi, and H. Hamada (1997) "Sound fields for the production of virtual acoustic images" Journal of Sound and Vibration, vol. 204, pp. 386-396.

W. G. Gardner (1998) 3-D audio using loudspeakers. Boston: Kluwer Academic Publishers.

D. B. Ward and G. W. Elko (2000) “A new robust system for 3D audio using loudspeakers”, in Proceedings 2000 IEEE International Conference on Acoustics, Speech and Signal Processing, vol. 2, pp. 781-784.

For the implementation I would say that the you can directly apply the algorithm proposed by Kirkeby-Nelson for the inversion of your measured crosstalk paths, which works quite well and you can also tune it to some extent to your specific conditions by use of the regularisation parameter:

O. Kirkeby, P. A. Nelson, H. Hamada, and F. Orduna Bustamante (1998a) "Fast deconvolution of multichannel systems using regularization" IEEE Transactions on Speech and Audio Processing, vol. 6, pp. 189-94.

Especially in low-RT or anechoic conditions you should get very good results either with synthesised or recorded binaural material. Beware of strong reflections though, if you have them you have to correct these too..

Regards,
Archontis

On 2/24/11 10:11 AM, Junfeng Li wrote:
Hello, all friends,

Is anyone working on binaural sound reproduction using loudspeakers?
To reproduce 3D sound using loudspeaker, cross-talk cancellation is needed,
as I know.
Does anyone know which the most-advanced cross-talk cancellation
technique/algorithm?
Does anyone have a sample program (source code) of binaural reproduction
using loudspeaker, which can share with me?

Great appreciation to all you.

Best regards,
Junfeng
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