Name
Title | ||
|---|---|---|
Model-based deadzone optimization for stack-run audio coding with uniform scalar quantization |
Abstract | ||
|---|---|---|
In this paper we present a model-based method to optimize the dead- zone of uniform scalar quantization in transform audio coding. The input signal is coded in modified discrete cosine transform (MDCT) domain by uniform scalar quantization followed by context-based arithmetic coding. The optimal deadzone is derived using a non- asymptotic method, assuming that the distribution of MDCT coefficients is approximated by a generalized Gaussian model. We show that deadzone optimization improves slightly quality, especially at low bitrates. |
Year | DOI | Venue |
|---|---|---|
2008 | 10.1109/ICASSP.2008.4518721 | Las Vegas, NV |
Keywords | Field | DocType |
Gaussian processes,approximation theory,audio coding,discrete cosine transforms,optimisation,quantisation (signal),approximation theory,context-based arithmetic coding,generalized Gaussian model,model-based deadzone optimization,modified discrete cosine transform,nonasymptotic method,stack-run audio coding,uniform scalar quantization,Transform coding,audio coding | Dead zone,Mathematical optimization,Computer science,Modified discrete cosine transform,Approximation theory,Transform coding,Coding (social sciences),Gaussian network model,Gaussian process,Arithmetic coding | Conference |
ISSN | ISBN | Citations |
1520-6149 E-ISBN : 978-1-4244-1484-0 | 978-1-4244-1484-0 | 3 |
PageRank | References | Authors |
0.49 | 5 | 3 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| marie oger | 1 | 12 | 2.82 |
| stephane ragot | 2 | 30 | 4.98 |
| Antonini, M. | 3 | 3 | 0.49 |