Name
Title | ||
|---|---|---|
Low-complexity multi-rate lattice vector quantization with application to wideband TCX speech coding at 32 kbit/s |
Abstract | ||
|---|---|---|
We present a new method, called Voronoi extension, for the design of low-complexity multi-rate lattice vector quantization (VQ). With this technique, lattice codebooks of arbitrarily large bit rates can be generated algorithmically and the problem of lattice codebook overload can be bypassed. We describe a practical multi-rate quantization system based on Voronoi extension and derived from the lattice RE8. This system is applied to the TCX coding model using pitch prediction, so as to extend AMR-WB speech coding at high bit rates (in particular 32 kbit/s). |
Year | DOI | Venue |
|---|---|---|
2004 | 10.1109/ICASSP.2004.1326032 | ICASSP '04). IEEE International Conference |
Keywords | Field | DocType |
speech coding,table lookup,variable rate codes,vector quantisation,32 kbit/s,AMR-WB speech coding,Voronoi extension,arbitrarily large bit rates,lattice codebooks,low-complexity multi-rate lattice VQ,multi-rate lattice vector quantization,pitch prediction,wideband TCX speech coding | Speech coding,Lattice (order),Computer science,Theoretical computer science,Vector quantization,Artificial intelligence,Voronoi diagram,Wideband,Pattern recognition,Algorithm,Harmonic Vector Excitation Coding,Quantization (signal processing),Codebook | Conference |
Volume | ISSN | ISBN |
1 | 1520-6149 | 0-7803-8484-9 |
Citations | PageRank | References |
22 | 7.05 | 2 |
Authors | ||
3 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Stéphane Ragot | 1 | 22 | 7.05 |
| Bruno Bessette | 2 | 42 | 11.14 |
| Lefebvre, R. | 3 | 93 | 18.55 |