Volume 7 Number 12 (Dec. 2012)
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JSW 2012 Vol.7(12): 2742-2748 ISSN: 1796-217X
doi: 10.4304//jsw.7.12.2742-2748

Audio Error Concealment Based on Wavelet Decomposition and Reconstruction

Fei Xiao, Hexin Chen and Yan Zhao
School of Communication Engineering, Jilin University, Changchun, China

Abstract—The algorithm of wavelet decomposition and reconstruction are applied in the audio error concealment method in this paper. When there is lost frame of the audio signal, the correct frames which lie before and after the lost frame are wavelet decomposed firstly. Then the two sets of the wavelet coefficients obtained from the wavelet decomposition are utilized to get the wavelet coefficients for the lost frame. Finally the concealment of the lost frame is completed by the wavelet coefficients reconstruction. Comparing to the performance of the traditional audio concealment algorithm, the proposed method is better for audio frame reconstruction.

Index Terms—error concealment, audio, wavelet, MALLAT, CELP


Cite: Fei Xiao, Hexin Chen and Yan Zhao, "Audio Error Concealment Based on Wavelet Decomposition and Reconstruction," Journal of Software vol. 7, no. 12, pp. 2742-2748, 2012.

General Information

ISSN: 1796-217X (Online)
Frequency: Monthly
Editor-in-Chief: Prof. Antanas Verikas
Executive Editor: Ms. Yoyo Y. Zhou
Abstracting/ Indexing: DBLP, EBSCO, ProQuest, INSPEC, ULRICH's Periodicals Directory, WorldCat, etc
E-mail: jsw@iap.org
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