| Presentation | 2006-06-23 A New Robust Adaptation Mode Controller based on a Normalized Cross-Correlation with Multiple Symmetric Leaky Blocking Matrices for Adaptive Microphone Arrays Akihiko SUGIYAMA, Thanh Phong HUA, BOUQUIN JEANNES Regine LE, Gerard FAUCON, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper proposes an adaptation mode controller (AMC) based on a normalized cross-correlation with multiple symmetric leaky blocking matrices (SLBMs) for adaptive microphone arrays. Robust and wideband estimation of a signal-to-interference ratio (SIR) is performed by the use of multiple pairs of SLBMs. The SIR estimate is compared to theoretical thresholds to evaluate target-interference proportion for controlling filter-coefficient adaptation in the adaptive path of the beamformer. A design method for SLBMs is developed and a design example is demonstrated. Phase differences between the outputs of the paired SLBMs are analyzed to show their desirable responses. Evaluations with recorded signals show that the proposed AMC achieves better discrimination between speech-dominant and interference-dominant sections, resulting in desirable control of coefficient adaptation in the microphone array and a better output. The better output signal of the microphone array provides a higher speech recognition rate by as much as 11% than the conventional AMC. The increased computations are shown to be negligeble. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Microphone array / adaptation control / normalized cross-correlation / symmetric / leaky blocking matrix |
| Paper # | CAS2006-17,VLD2006-30,SIP2006-40 |
| Date of Issue |
| Conference Information | |
| Committee | SIP |
|---|---|
| Conference Date | 2006/6/16(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Signal Processing (SIP) |
|---|---|
| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A New Robust Adaptation Mode Controller based on a Normalized Cross-Correlation with Multiple Symmetric Leaky Blocking Matrices for Adaptive Microphone Arrays |
| Sub Title (in English) | |
| Keyword(1) | Microphone array |
| Keyword(2) | adaptation control |
| Keyword(3) | normalized cross-correlation |
| Keyword(4) | symmetric |
| Keyword(5) | leaky blocking matrix |
| 1st Author's Name | Akihiko SUGIYAMA |
| 1st Author's Affiliation | NEC Media and Information Research Laboratories() |
| 2nd Author's Name | Thanh Phong HUA |
| 2nd Author's Affiliation | NEC Media and Information Research Laboratories |
| 3rd Author's Name | BOUQUIN JEANNES Regine LE |
| 3rd Author's Affiliation | LTSI, Inserm U642, Universite de Rennes 1, Campus de Beaulieu |
| 4th Author's Name | Gerard FAUCON |
| 4th Author's Affiliation | LTSI, Inserm U642, Universite de Rennes 1, Campus de Beaulieu |
| Date | 2006-06-23 |
| Paper # | CAS2006-17,VLD2006-30,SIP2006-40 |
| Volume (vol) | vol.106 |
| Number (no) | 116 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |