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- W2129697784 abstract "Sound source localisation cues are severely degraded when multiple acoustic sources are active in the presence of reverberation. We present a binaural system for localising simultaneous speakers which exploits the fact that in a speech mixture there exist spectro-temporal regions or dasiafragmentspsila, where the energy is dominated by just one of the speakers. A fragment-level localisation model is proposed that integrates the localisation cues within a fragment using a weighted mean. The weights are based on local estimates of the degree of reverberation in a given spectro-temporal cell. The paper investigates different weight estimation approaches based variously on, i) an established model of the perceptual precedence effect; ii) a measure of interaural coherence between the left and right ear signals; iii) a data-driven approach trained in matched acoustic conditions. Experiments with reverberant binaural data with two simultaneous speakers show appropriate weighting can improve frame-based localisation performance by up to 24%." @default.
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- W2129697784 date "2009-04-01" @default.
- W2129697784 modified "2023-10-14" @default.
- W2129697784 title "A speech fragment approach to localising multiple speakers in reverberant environments" @default.
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- W2129697784 doi "https://doi.org/10.1109/icassp.2009.4960653" @default.
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