Name
Abstract | ||
|---|---|---|
We propose an algorithm for designing nonuniform oversam- pled filterbanks with arbitray delay. The filterbank has uni- form sections obtained by generalized DFT modulation; be- tween the uniform sections, there are transition filters. There is no a priori constraint on the widths of transition filters channels, as in previous publications. The design algorithm is composed of three steps, in which a bank (analysis or syn- thesis) is optimized by solving convex optimization problems for finding the prototypes of uniform sections and the transi- tion filters. In the first step, an orthogonal filterbank is de- signed, while in the other steps a bank is given and the other is optimized. We present an example of design suitable to subband processing of wideband speech signals. |
Year | Venue | Keywords |
|---|---|---|
2006 | EUSIPCO | acoustic signal processing,channel bank filters,convex programming,discrete fourier transforms,echo suppression,filtering theory,modulation,signal sampling,speech processing,acoustic echo control,arbitray delay,bank optimization,convex optimization problems,generalized dft modulation,low-delay nonuniform oversampled filterbanks,orthogonal filterbank,subband wideband speech signal processing,transition filters channels,uniform sections |
Field | DocType | ISSN |
Wideband audio,A priori and a posteriori,Filter bank,Algorithm,Communication channel,Speech recognition,Modulation,Low delay,Convex optimization,Mathematics | Conference | 2219-5491 |
Citations | PageRank | References |
1 | 0.36 | 6 |
Authors | ||
4 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Bogdan Dumitrescu | 1 | 107 | 22.76 |
| Robert Bregovic | 2 | 148 | 18.84 |
| T. Saramaki | 3 | 163 | 23.23 |
| riitta niemisto | 4 | 3 | 1.44 |