Title
A fast-search algorithm for the predictive split VQ of LPC parameters
Abstract
A fast-search method is introduced to reduce the searching range of a codebook using the ordering property of LSF parameters. We apply the proposed fast-search method to the G.723.1 coder with the predictive split VQ structure. Simulation results indicate that using this fast-search method, the average searching range of the codebook can be reduced by 20.1% without degradation of the spectral distortion (SD) and additional increases of memories. The reduction of 20.1% in the average searching range results in the decrease of 19.1%, 20.1%, 19.4%, and 12.2% in the number of additions, subtractions, multiplies, and comparisons, respectively.
Year
DOI
Venue
2001
10.1109/4234.922763
IEEE Communications Letters
Keywords
Field
DocType
Prediction algorithms,Linear predictive coding,Degradation,Speech synthesis,Filters,Vector quantization,Associate members,Frequency,Speech coding,Predictive coding
Signal processing,Speech coding,Search algorithm,Algorithm,Linear prediction,Real-time computing,Speech recognition,Vector quantization,Linear predictive coding,Mathematics,Computational complexity theory,Codebook
Journal
Volume
Issue
ISSN
5
5
1089-7798
Citations 
PageRank 
References 
1
0.36
3
Authors
3
Name
Order
Citations
PageRank
Sangwon Kang1216.06
Changyong Son251.38
Ho-Sang Sung3335.68