Spectral Coding By Fast Vector Quantization

E. Agrell
Proceedings., IEEE Workshop on Speech Coding for Telecommunications,  
1 SND RND FND Fig. 1 . A two-dimensional vector (circle) is encoded. Thin lines mark the Voronoi regions. The fat lines indicate how the ND algorithms search and which codewords they test, if they start at the center. Abstract -The "neighbor descent" method for fast vector quantization is well suited for speech coding. In a typical example, the time needed for encoding LPC coefficients was reduced to two percent of a full search. The price to pay is considerable precomputations and memory
more » ... ns and memory requirements.
doi:10.1109/scft.1993.762339 fatcat:u33grvpndnez7ijrx2bvdq2e6u