| Applications of Wavelets in 3-D Audio Simulation |
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| 作者单位： | Zhu Xiaoguang,Hong Bingrong(Dept. of Computer Science and Engineering, Harbin Institute of Technology, 150001, P. R. China);Wang Dongmu(Beijing Simulation Center, 100854, P. R. China)
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| 摘 要： | 1. INTSODUCTIONThe application of wavelets in the fields of mathematics and engineering has grown rapidly inthe past few y6ars. In particular, it has been a powerful tool for signal processing and functionapproximation. To fUrther meet high-throughput networking requiremellts for 3-D audiosimulation, this paper uses wavelet decomposition properties to decrease redundant data andtransmission bandwidth. With the increasing developmellt of multimedia and virtual realitytechnologyl 3-D audio…
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Applications of Wavelets in 3-D Audio Simulation |
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| Authors: | Zhu Xiaoguang Hong Bingrong Wang Dongmu |
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| Abstract: | Wavelet has been used as a powerful tool in the signal processing and function approximation recently. This paper presents the application of wavelets for solving two key problems in 3-D audio simulation. First, we employ discrete wavelet transform (DWT) combined with vector quantization (VQ) to compress audio data in order to reduce tremendous redundant data storage and transmission times. Secondly, we use wavelets as the activation functions in neural networks called feed-forward wavelet networks to approach auditory localization information cues (head-related transfer functions (HRTPs) are used here). The experimental results demonstrate that the application of wavelets is more efficient and useful in 3-D audio simulation. |
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| Keywords: | Discrete wavelet transform (DWT) Wavelet networks 3-D audio simulation Vector quantization (VQ) Head-related transfer functions (HRTFs) Data compression |
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