Cited by 96Speech and Audio ProcessingDirection-of-Arrival Estimation TechniquesAdvanced Adaptive Filtering Techniques

Robust Adaptive Time Delay Estimation for Speaker Localization in Noisy and Reverberant Acoustic Environments

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Doclo, Simon, Moonen, Marc·2003·EURASIP Journal on Advances in Signal Processing

Abstract

Two adaptive algorithms are presented for robust time delay estimation (TDE) in acoustic environments with a large amount of background noise and reverberation. Recently, an adaptive eigenvalue decomposition (EVD) algorithm has been developed for TDE in highly reverberant acoustic environments. In this paper, we extend the adaptive EVD algorithm to noisy and reverberant acoustic environments, by deriving an adaptive stochastic gradient algorithm for the generalized eigenvalue decomposition (GEVD) or by prewhitening the noisy microphone signals. We have performed simulations using a localized and a diffuse noise source for several SNRs, showing that the time delays can be estimated more accurately using the adaptive GEVD algorithm than using the adaptive EVD algorithm. In addition, we have analyzed the sensitivity of the adaptive GEVD algorithm with respect to the accuracy of the noise correlation matrix estimate, showing that its performance may be quite sensitive, especially for low SNR scenarios.

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Research works printed but not linked: 1

  1. A. Spriet, M. Moonen, and J. Wouters, "A multichannel sub- band generalized singular value decomposition approach to speech enhancement," European Transactions on Telecommu- nications, vol. 13, no. 2, pp. 149-158, 2002, Special Issue on Acoustic Echo and Noise Control.

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Authors
Doclo, S., & Moonen, M.
Affiliations
KU Leuven (BE)
Corresponding author
Doclo, Simon
Venue
EURASIP Journal on Advances in Signal Processing
Published
2003-10-05
Volume
2003
Issue
11
ISSN
  • 1110-8657 (ISSN-L)
  • 1687-6180
OpenAlex
W2160623760
Cited by
96
References
39
Citations by year
2025: 1 · 2024: 2 · 2023: 4 · 2022: 2 · 2021: 1 · 2020: 7 · 2019: 5 · 2018: 6 · 2017: 9 · 2016: 6 · 2015: 5 · 2014: 5 · 2013: 7 · 2012: 6
FWCI
3.45
Type
journal article
Language
en
Open access
Locations
  • EURASIP Journal on Advances in Signal Processing (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Fonds Wetenschappelijk Onderzoek
  • KU Leuven
  • Vlaamse regering
Topics
  • Physical Sciences › Computer Science › Signal Processing › Speech and Audio Processing
  • Physical Sciences › Computer Science › Signal Processing › Direction-of-Arrival Estimation Techniques
  • Physical Sciences › Engineering › Computational Mechanics › Advanced Adaptive Filtering Techniques
Keywords
time delay estimation, speaker localization, generalized eigenvalue decomposition, stochastic gradient algorithm, prewhitening, reverberation, background noise, low signal-to-noise ratio, microphone array

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