Individualized HRTF matching and compression for virtual sound

Sun Qing; Miao Hua; Ma Qingyu

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Individualized HRTF matching and compression for virtual sound

Sun Qing 1,Miao Hua 2,Ma Qingyu 3 * #

1.Department of Educational Technology. Nanjing Normal University

2.Center of Educational Technology, PLA Institute of International Relations, Nanjing 210039,China

3.School of Physics and Technology, Nanjing Normal University, Nanjing 210046, China

*Correspondence author

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Funding: Natural Science Foundation of Jiangsu Province Natural Science Foundation of China （No.No. BK2009407）, Ph. D. Programs Foundation of Ministry of Education（No.No. 20093207120003）, National Natural Science Foundation of China （No.No. 10974098）

Opened online:19 July 2011

Accepted by: none

Citation: Sun Qing,Miao Hua,Ma Qingyu.Individualized HRTF matching and compression for virtual sound[OL]. [19 July 2011] http://en.paper.edu.cn/en_releasepaper/content/4435296

Players in audio-only games can only control the game process based on the orientation information of the sound source in three dimensional virtual sound space and so real-time processing with high accuracy is needed in virtual sound reproduction. In this paper, the individualized HRTF matching and compression method is proposed and validated through signal processing progress of the CIPIC and MIT data using the PCA method, based on the basic principle of three dimensional virtual sounds. Little error between the original and the compress-reconstruct HRTF data prove that the proposed method can be applied in real-time processing system with less storage and simplified computational complexity to enhance the reproduction speed and accuracy. The favorable result prpvide the feasibility of the proposed method in practical application of virtual sound.

Keywords:HRTF; PCA; compression; individual match

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