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• W4384135332 abstract "Time-delay estimation (TDE) algorithms for speaker localization usually suffer from adverse effects of background noise and reverberation. The multichannel cross correlation coefficient (MCCC) algorithm exploits spatial redundancy among multiple microphone signals to boost the robustness of the time-delay estimator. The MCCC algorithm, however, does not completely exploit the useful redundancy among the signals received at an array of microphones for the TDE. This issue is investigated in this article from an information theory perspective. An equivalent TDE algorithm is derived to disclose the mechanism and limitation of the MCCC algorithm. Two new TDE algorithms are proposed on the basis of the mutual information (MI) among an array of microphones. The first algorithm fully utilizes the MI between all the different microphone signals to enhance its robustness to reverberation. The second algorithm emphasizes the monotone factors in these MI functions to promote its robustness to noise and reverberation. The effectiveness of the new time-delay estimators is demonstrated in noisy and reverberant environments." @default.
• W4384135332 created "2023-07-14" @default.
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• W4384135332 date "2023-08-15" @default.
• W4384135332 modified "2023-10-14" @default.
• W4384135332 title "Robust Time-Delay Estimation for Speaker Localization Using Mutual Information Among Multiple Microphone Signals" @default.
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• W4384135332 doi "https://doi.org/10.1109/jsen.2023.3293499" @default.
• W4384135332 hasPublicationYear "2023" @default.
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