DocumentCode
1702904
Title
Coding unconstrained FCB excitation using combinatorial and Huffman codes
Author
Mittal, Udar ; Ashley, James P. ; Cruz-Zeno, E.M.
Author_Institution
Motorola Labs., Schaumburg, IL, USA
fYear
2002
Firstpage
129
Lastpage
131
Abstract
A method for coding "unconstrained" fixed codebook (FCB) excitation for ACELP speech coders is proposed. The unconstrained FCB does not place track-based constraint on the pulse positions. The coding method combines Huffman codes and combinatorial codes. The method is less sensitive to bit errors and is nearly as efficient as the combinatorial codes. A method for efficiently storing the parameters needed in the combinatorial codebook is also proposed.
Keywords
Huffman codes; error statistics; linear predictive coding; speech coding; ACELP speech coders; Huffman codes; algebraic code excited linear prediction; bit errors; combinatorial codes; fixed codebook; pulse positions; unconstrained FCB excitation; Decoding; Nonlinear filters; Product codes; Robustness; Speech coding; Vector quantization;
fLanguage
English
Publisher
ieee
Conference_Titel
Speech Coding, 2002, IEEE Workshop Proceedings.
Print_ISBN
0-7803-7549-1
Type
conf
DOI
10.1109/SCW.2002.1215747
Filename
1215747
Link To Document