Name
Abstract | ||
|---|---|---|
This paper describes a fixed-rate quantizer using algebraic techniques as well as conventional stored codebooks to represent the wideband line spectral frequencies (LSF). It is based on two-stage split vector quantization with random and lattice codebooks in the first and second stage, respectively. We investigate the use of variable bit allocation in lattice quantization in order to capture outliers and reduce the overload distortion in spectral quantization, particularly for non-speech signals. Experimental results show that a variable bit allocation in split quantization yields performances slightly better than a fixed allocation at the same rate. |
Year | DOI | Venue |
|---|---|---|
2000 | 10.1109/ICASSP.2000.859173 | ICASSP |
Keywords | Field | DocType |
fixed allocation,variable bit allocation,split quantization yields performance,algebraic technique,lattice codebooks,spectral quantization,lattice quantization,two-stage split vector quantization,wideband line spectral frequency,speech coding,stochastic processes,frequency,outliers,vector quantization,distortion,sampling methods,bandwidth,lattices,linear predictive coding | Lattice (order),Computer science,Vector quantization,Artificial intelligence,Distortion,Linear predictive coding,Discrete mathematics,Wideband,Pattern recognition,Algorithm,Stochastic process,Bandwidth (signal processing),Quantization (signal processing) | Conference |
Volume | ISSN | ISBN |
2 | 1520-6149 | 0-7803-6293-4 |
Citations | PageRank | References |
2 | 0.47 | 3 |
Authors | ||
4 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| S. Ragot | 1 | 18 | 2.17 |
| R. Lefebvre | 2 | 2 | 0.47 |
| R. Salami | 3 | 196 | 24.90 |
| J.-P. Adoul | 4 | 21 | 3.34 |