Name
Title | ||
|---|---|---|
Numerical near field optimization of a non-uniform sub-band filter-and-sum beamformer |
Abstract | ||
|---|---|---|
A novel near field filter-and-sum beamformer using non uniform frequency sub-bands is presented. The concept is based on numerical optimization of the reception characteristic of the microphone array. In order to improve the reception characteristic over frequency and space, a non uniform filterbank is utilized to subdivide the frequency range. Individual optimization processes for each sub-band result in a clearly improved reception characteristic. The new system is able to closely approximate a target (independently of the frequency) which can be defined according to the application. |
Year | DOI | Venue |
|---|---|---|
2013 | 10.1109/ICASSP.2013.6637616 | Acoustics, Speech and Signal Processing |
Keywords | Field | DocType |
array signal processing,channel bank filters,microphone arrays,near-field communication,optimisation,frequency range,microphone array,near field filter-and-sum beamformer,nonuniform filterbank,nonuniform frequency subbands,nonuniform subband filter-and-sum beamformer,numerical near field optimization,numerical optimization,optimization processes,reception characteristic,Microphone arrays,beamforming,near field,numerical optimization | Near field communication,Pattern recognition,Computer science,Filter bank,Noise-canceling microphone,Near and far field,Speech recognition,Microphone array,Artificial intelligence,Acoustics | Conference |
ISSN | Citations | PageRank |
1520-6149 | 2 | 0.37 |
References | Authors | |
9 | 4 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Florian Heese | 1 | 50 | 5.25 |
| Magnus Schaefer | 2 | 4 | 1.14 |
| Jona Wernerus | 3 | 2 | 0.37 |
| Peter Vary | 4 | 444 | 47.30 |