Linking the sounds of dolphins to their locations and behavior using video and multichannel acoustic recordings
It is difficult to attribute underwater animal sounds to the individuals producing them. This paper presents a system developed to solve this problem for dolphins by linking acoustic locations of the sounds of captive bottlenose dolphins with an overhead video image. A time-delay beamforming algorit...
Published in: | The Journal of the Acoustical Society of America |
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Language: | English |
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2002
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Online Access: | https://research-portal.st-andrews.ac.uk/en/researchoutput/linking-the-sounds-of-dolphins-to-their-locations-and-behavior-using-video-and-multichannel-acoustic-recordings(58fcb80e-2f06-4dbb-bb40-0cfcab5275c4).html https://doi.org/10.1121/1.1494805 |
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ftunstandrewcris:oai:research-portal.st-andrews.ac.uk:publications/58fcb80e-2f06-4dbb-bb40-0cfcab5275c4 2024-09-09T20:02:23+00:00 Linking the sounds of dolphins to their locations and behavior using video and multichannel acoustic recordings Thomas, R E Fristrup, K M Tyack, P L 2002-10 https://research-portal.st-andrews.ac.uk/en/researchoutput/linking-the-sounds-of-dolphins-to-their-locations-and-behavior-using-video-and-multichannel-acoustic-recordings(58fcb80e-2f06-4dbb-bb40-0cfcab5275c4).html https://doi.org/10.1121/1.1494805 eng eng https://research-portal.st-andrews.ac.uk/en/researchoutput/linking-the-sounds-of-dolphins-to-their-locations-and-behavior-using-video-and-multichannel-acoustic-recordings(58fcb80e-2f06-4dbb-bb40-0cfcab5275c4).html info:eu-repo/semantics/restrictedAccess Thomas , R E , Fristrup , K M & Tyack , P L 2002 , ' Linking the sounds of dolphins to their locations and behavior using video and multichannel acoustic recordings ' , Journal of the Acoustical Society of America , vol. 112 , no. 4 , pp. 1692-1701 . https://doi.org/10.1121/1.1494805 BOTTLE-NOSED DOLPHINS WHALES ORCINUS-ORCA TURSIOPS-TRUNCATUS HYDROPHONE ARRAY WHISTLES LOCALIZATION MULTIPATH TIMES article 2002 ftunstandrewcris https://doi.org/10.1121/1.1494805 2024-08-21T23:46:11Z It is difficult to attribute underwater animal sounds to the individuals producing them. This paper presents a system developed to solve this problem for dolphins by linking acoustic locations of the sounds of captive bottlenose dolphins with an overhead video image. A time-delay beamforming algorithm localized dolphin sounds obtained from an array of hydrophones dispersed around a lagoon. The localized positions of vocalizing dolphins were projected onto video images. The performance of the system was measured for artificial calibration signals as well as for dolphin sounds. The performance of the system for calibration signals was analyzed in terms of acoustic localization error, video projection error, and combined acoustic localization and video error. The 95% confidence bounds for these were 1.5, 2.1, and 2.1 m, respectively. Performance of the system was analyzed for three types of dolphin sounds: echolocation clicks, whistles, and burst-pulsed sounds. The mean errors for these were 0.8, 1.3, and 1.3 m, respectively. The 95% confidence bound for all vocalizations was 2.8 m, roughly the length of an adult bottlenose dolphin. This system represents a significant advance for studying the function of vocalizations of marine animals in relation to their context, as the sounds can be identified to the vocalizing dolphin and linked to its concurrent behavior. (C) 2002 Acoustical Society of America. Article in Journal/Newspaper Orca Orcinus orca University of St Andrews: Research Portal The Journal of the Acoustical Society of America 112 4 1692 1701 |
institution |
Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
topic |
BOTTLE-NOSED DOLPHINS WHALES ORCINUS-ORCA TURSIOPS-TRUNCATUS HYDROPHONE ARRAY WHISTLES LOCALIZATION MULTIPATH TIMES |
spellingShingle |
BOTTLE-NOSED DOLPHINS WHALES ORCINUS-ORCA TURSIOPS-TRUNCATUS HYDROPHONE ARRAY WHISTLES LOCALIZATION MULTIPATH TIMES Thomas, R E Fristrup, K M Tyack, P L Linking the sounds of dolphins to their locations and behavior using video and multichannel acoustic recordings |
topic_facet |
BOTTLE-NOSED DOLPHINS WHALES ORCINUS-ORCA TURSIOPS-TRUNCATUS HYDROPHONE ARRAY WHISTLES LOCALIZATION MULTIPATH TIMES |
description |
It is difficult to attribute underwater animal sounds to the individuals producing them. This paper presents a system developed to solve this problem for dolphins by linking acoustic locations of the sounds of captive bottlenose dolphins with an overhead video image. A time-delay beamforming algorithm localized dolphin sounds obtained from an array of hydrophones dispersed around a lagoon. The localized positions of vocalizing dolphins were projected onto video images. The performance of the system was measured for artificial calibration signals as well as for dolphin sounds. The performance of the system for calibration signals was analyzed in terms of acoustic localization error, video projection error, and combined acoustic localization and video error. The 95% confidence bounds for these were 1.5, 2.1, and 2.1 m, respectively. Performance of the system was analyzed for three types of dolphin sounds: echolocation clicks, whistles, and burst-pulsed sounds. The mean errors for these were 0.8, 1.3, and 1.3 m, respectively. The 95% confidence bound for all vocalizations was 2.8 m, roughly the length of an adult bottlenose dolphin. This system represents a significant advance for studying the function of vocalizations of marine animals in relation to their context, as the sounds can be identified to the vocalizing dolphin and linked to its concurrent behavior. (C) 2002 Acoustical Society of America. |
format |
Article in Journal/Newspaper |
author |
Thomas, R E Fristrup, K M Tyack, P L |
author_facet |
Thomas, R E Fristrup, K M Tyack, P L |
author_sort |
Thomas, R E |
title |
Linking the sounds of dolphins to their locations and behavior using video and multichannel acoustic recordings |
title_short |
Linking the sounds of dolphins to their locations and behavior using video and multichannel acoustic recordings |
title_full |
Linking the sounds of dolphins to their locations and behavior using video and multichannel acoustic recordings |
title_fullStr |
Linking the sounds of dolphins to their locations and behavior using video and multichannel acoustic recordings |
title_full_unstemmed |
Linking the sounds of dolphins to their locations and behavior using video and multichannel acoustic recordings |
title_sort |
linking the sounds of dolphins to their locations and behavior using video and multichannel acoustic recordings |
publishDate |
2002 |
url |
https://research-portal.st-andrews.ac.uk/en/researchoutput/linking-the-sounds-of-dolphins-to-their-locations-and-behavior-using-video-and-multichannel-acoustic-recordings(58fcb80e-2f06-4dbb-bb40-0cfcab5275c4).html https://doi.org/10.1121/1.1494805 |
genre |
Orca Orcinus orca |
genre_facet |
Orca Orcinus orca |
op_source |
Thomas , R E , Fristrup , K M & Tyack , P L 2002 , ' Linking the sounds of dolphins to their locations and behavior using video and multichannel acoustic recordings ' , Journal of the Acoustical Society of America , vol. 112 , no. 4 , pp. 1692-1701 . https://doi.org/10.1121/1.1494805 |
op_relation |
https://research-portal.st-andrews.ac.uk/en/researchoutput/linking-the-sounds-of-dolphins-to-their-locations-and-behavior-using-video-and-multichannel-acoustic-recordings(58fcb80e-2f06-4dbb-bb40-0cfcab5275c4).html |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1121/1.1494805 |
container_title |
The Journal of the Acoustical Society of America |
container_volume |
112 |
container_issue |
4 |
container_start_page |
1692 |
op_container_end_page |
1701 |
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