Noise robust bird call localisation using the Generalised Cross-Correlation with Phase Transform in the wavelet domain

Show simple item record Ollivier, B en Pepperell, A en Halstead, Z en Hioka, Yusuke en 2019-10-08T08:10:09Z en 2019 en
dc.identifier.issn 1520-8524 en
dc.identifier.uri en
dc.description.abstract Bird localisation using passive acoustic methods is a non-intrusive solution for taking a census of bird species. Through the recordings from a microphone array, the generalised cross-correlation with phase transform (GCC-PHAT) has been adopted widely in the estimation of the direction-of-arrival (DOA) of audio signals especially speech in indoor environments, as it performs very well in a reverberant environment. However, the performance is degraded when the signal to noise ratio is low. This study investigates the performance of DOA estimation when the GCC-PHAT is applied in the wavelet domain. Three configurations are considered in this study and the performance of these configurations is assessed by numerical simulation under ideal setup and practical experiments using audio signals recorded in a typical native forest in New Zealand. The results suggest the configuration which applies GCC-PHAT and denoising in the wavelet domain and estimates DOA from the reconstructed cross-correlation can give more accurate estimation compared to the conventional GCC-PHAT. en
dc.publisher Nature Research en
dc.relation.ispartofseries Journal of the Acoustical Society of America en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. en
dc.rights.uri en
dc.title Noise robust bird call localisation using the Generalised Cross-Correlation with Phase Transform in the wavelet domain en
dc.type Journal Article en
dc.identifier.doi 10.1121/1.5138593 en
pubs.issue 6 en
pubs.begin-page 4650 en
pubs.volume 146 en
dc.rights.holder Copyright: The author en
pubs.end-page 4663 en
dc.rights.accessrights en
pubs.subtype Article en
pubs.elements-id 774543 en Engineering en Mechanical Engineering en
pubs.record-created-at-source-date 2019-06-14 en 2019-12-31 en
pubs.dimensions-id 31893750 en

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