A real-time voice modification system in virtual community

Shoufu Du; Yongzhao Zhan; Dejiao Niu

doi:10.1117/12.561305

19 March 2004 A real-time voice modification system in virtual community

Shoufu Du, Yongzhao Zhan, Dejiao Niu

Proceedings Volume 5444, Fourth International Conference on Virtual Reality and Its Applications in Industry; (2004) https://doi.org/10.1117/12.561305
Event: Fourth International Conference On Virtual Reality and Its Applications in Industry, 2003, Tianjin, China

Abstract

The speaker often wants to express his own views boldly in some oral argument cases in the virtual community. However, he hopes that others could not recognize him. For this purpose, we adopted the voice modification technique to meet these requirements. In this paper, we presented a method of rotating the Pseudo Log Area Ration (PLAR) curve to modify the representation of the speech based on the experiments of the relation between PLAR coefficients and personal information. We also deduced a series of equations to testify the accuracy of this method. Using this method we developed a real-time voice modification system based on LP model, and PSOLA method was also added to this system to produce a better effectiveness. Experiments show that our system has good property of real-time and satisfactory auditory effectiveness and it has successfully been implemented in the virtual community.

Citation Download Citation

Shoufu Du, Yongzhao Zhan, and Dejiao Niu "A real-time voice modification system in virtual community", Proc. SPIE 5444, Fourth International Conference on Virtual Reality and Its Applications in Industry, (19 March 2004); https://doi.org/10.1117/12.561305

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