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Proceedings Paper

A real-time voice modification system in virtual community
Author(s): Shoufu Du; Yongzhao Zhan; Dejiao Niu
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Paper 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.

Paper Details

Date Published: 19 March 2004
PDF: 4 pages
Proc. SPIE 5444, Fourth International Conference on Virtual Reality and Its Applications in Industry, (19 March 2004); doi: 10.1117/12.561305
Show Author Affiliations
Shoufu Du, JiangSu Univ. (China)
Yongzhao Zhan, JiangSu Univ. (China)
Dejiao Niu, JiangSu Univ. (China)


Published in SPIE Proceedings Vol. 5444:
Fourth International Conference on Virtual Reality and Its Applications in Industry
Jizhou Sun; Zhigeng Pan, Editor(s)

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