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Use of the crosspower-spectrum phase in acoustic event location

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2 Author(s)
Omologo, M. ; Ist. per la Ricerca Sci. e Tecnologica, Trento ; Svaizer, P.

The article reports on the use of crosspower-spectrum phase (CSP) analysis as an accurate time delay estimation (TDE) technique. It is used in a microphone array system for the location of acoustic events in noisy and reverberant environments. A corresponding coherence measure (CM) and its graphical representation are introduced to show the TDE accuracy. Using a two-microphone pair array, real experiments show less than a 10 cm average location error in a 6 m×6 m area

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Speech and Audio Processing, IEEE Transactions on  (Volume:5 ,  Issue: 3 )