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Frequency map selection using a RBFN-based classifier in the MVDR beamformer for speaker localization in reverberant rooms

Salvati, Daniele
•
DRIOLI, Carlo
•
FORESTI, Gian Luca
2015
  • conference object

Abstract
We present the weighted minimum variance distortionless response (WMVDR), which is a steered response power (SRP) algorithm, for near-field speaker localization in a reverberant environment. The proposed WMVDR is based on a machine learning approach for computing the incoherent frequency fusion of narrowband power maps. We adopt a radial basis function network (RBFN) classifier for the estimation of the weighting coefficients, and a marginal distribution of narrowband power map as feature for the supervised training operation. Simulations demonstrate the effectiveness of the proposed approach in different conditions
WOS
WOS:000380581601225
Archivio
http://hdl.handle.net/11390/1103912
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84959094290
http://www.isca-speech.org
Diritti
closed access
Soggetti
  • Broadband MVDR

  • Machine learning

  • Near-field reverberan...

  • RBFN

  • Speaker spatial local...

  • Language and Linguist...

  • Human-Computer Intera...

  • Signal Processing

  • Software

  • Modeling and Simulati...

Visualizzazioni
5
Data di acquisizione
Apr 19, 2024
Vedi dettagli
google-scholar
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