The Energy Distribution of Tire-Road Noise and Noisy Speech Based on Wavelet Packet

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Speech enhancement is very important for mobile communications or some other applications in car. The energy distribution of signal is the basis of algorithms which denoise noisy speech in time-frequency domain. In this work, the noise regarded is the tire-road noise when driving in expressway. Wavelet packets transform is used in the analysis. After decomposing noise signal and noisy speech signal by wavelet packet transform, the analysis for the difference of the energy distribution between noisy speech and noise is finished.

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Periodical:

Edited by:

Long Chen, Yongkang Zhang, Aixing Feng, Zhenying Xu, Boquan Li and Han Shen

Pages:

721-724

DOI:

10.4028/www.scientific.net/KEM.464.721

Citation:

Z. Y. He and L. H. Luo, "The Energy Distribution of Tire-Road Noise and Noisy Speech Based on Wavelet Packet", Key Engineering Materials, Vol. 464, pp. 721-724, 2011

Online since:

January 2011

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$35.00

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