Index Catalog // ScholarsArchive@OSU

Observation of sound focusing and defocusing due to propagating nonlinear internal waves

Creator:: Luo, J., Badiey, M., Karjadi, E. A., Katsnelson, B., Tskhoidze, A., Lynch, J. F., and Moum, J. N.
Abstract:: Fluctuations of the low frequency sound field in the presence of an internal solitary wave packet during the Shallow Water ’06 experiment are analyzed. Acoustic, environmental, and on-board ship radar image data were collected simultaneously before, during, and after a strong internal solitary wave packet passed through the acoustic track....
Resource Type:: Article
Full Text:: . 2, September 2008 © 2008 Acoustical Society of America 28.193.70.43. Redistribution subject to ASA

Mid-frequency sound propagation through internal waves at short range with synoptic oceanographic observations

Creator:: Rouseff, Daniel, Tang, Dajun, Williams, Kevin L., Wang, Zhongkang, and Moum, James N.
Abstract:: Preliminary results are presented from an analysis of mid-frequency acoustic transmission data collected at range 550m during the Shallow Water 2006 Experiment. The acoustic data were collected on a vertical array immediately before, during, and after the passage of a nonlinear internal wave on 18 August, 2006. Using oceanographic data...
Resource Type:: Article
Full Text:: passes above the acoustic source. © 2008 Acoustical Society of America PACS numbers: 43.30.Ft, 43.30.Re

Cooperative prey herding by the pelagic dolphin, Stenella longirostris

Creator:: Benoit-Bird, Kelly J. and Au, Whitlow W. L.
Abstract:: Sonar techniques were used to quantitatively observe foraging predators and their prey simultaneously in three dimensions. Spinner dolphins foraged at night in highly coordinated groups of 16–28 individuals using strict four-dimensional patterns to increase prey density by up to 200 times. Herding exploited the prey’s own avoidance behavior to achieve...
Resource Type:: Article
Full Text:: Pacific Ocean. © 2009 Acoustical Society of America. �DOI: 10.1121/1.2967480� PACS number�s�: 43.30.Sf

Modeling the detection range of fish by echolocating bottlenose dolphins and harbor porpoises

Creator:: Au, Whitlow W. L., Benoit-Bird, Kelly J., and Kastelein, Ronald A.
Abstract:: The target strength as a function of aspect angle were measured for four species of fish using dolphin-like and porpoise-like echolocation signals. The polar diagram of target strength values measured from an energy flux density perspective showed considerably less fluctuation with azimuth than would a pure tone pulse. Using detection...
Resource Type:: Article
Full Text:: dolphin echolocation signals. © 2007 Acoustical Society of America. �DOI: 10.1121/1.2734487� PACS number

Vocal repertoire of the social giant otter

Creator:: Leuchtenberger, Caroline, Sousa-Lima, Renata, Duplaix, Nicole, Magnusson, William E., and Mourão, Guilherme
Abstract:: According to the “social intelligence hypothesis,” species with complex social interactions have more sophisticated communication systems. Giant otters (Pteronura brasiliensis) live in groups with complex social interactions. It is likely that the vocal communication of giant otters is more sophisticated than previous studies suggest. The objectives of the current study...
Resource Type:: Article
Full Text:: America, 136(5), 2861-2875. doi:10.1121/1.4896518 10.1121/1.4896518 Acoustical Society of America

Nighttime foraging by deep diving echolocating odontocetes off the Hawaiian islands of Kauai and Ni’ihau as determined by passive acoustic monitors

Creator:: Au, Whitlow W. L., Giorli, Giacomo, Chen, Jessica, Copeland, Adrienne, Lammers, Marc, Richlen, Michael, Jarvis, Susan, Morrissey, Ronald, Moretti, David, and Klinck, Holger
Abstract:: Remote autonomous ecological acoustic recorders (EARs) were deployed in deep waters at five locations around the island of Kauai and one in waters off Ni'ihau in the main Hawaiian island chain. The EARs were moored to the bottom at depths between 400 and 800 m. The data acquisition sampling rate...
Resource Type:: Article
Full Text:: 2013 Acoustical Society of America. [http://dx.doi.org/10.1121/1.4798360] PACS number(s): 43.80.Ka

Tracking beaked whales with a passive acoustic profiler float

Creator:: Matsumoto, Haru, Jones, Christopher, Klinck, Holger, Mellinger, David K., Dziak, Robert P., and Meinig, Christian
Abstract:: Acoustic methods are frequently used to monitor endangered marine mammal species. Advantages of acoustic methods over visual ones include the ability to detect submerged animals, to work at night, and to work in any weather conditions. A relatively inexpensive and easy-to-use acoustic float, the QUEphone, was developed by converting a...
Resource Type:: Article
Full Text:: whales. VC 2013 Acoustical Society of America. [http://dx.doi.org/10.1121/1.4773260] PACS number(s

The energy ratio mapping algorithm: A tool to improve the energy-based detection of odontocete echolocation clicks

Creator:: Klinck, Holger and Mellinger, David K.
Abstract:: The energy ratio mapping algorithm (ERMA) was developed to improve the performance of energy-based detection of odontocete echolocation clicks, especially for application in environments with limited computational power and energy such as acoustic gliders. ERMA systematically evaluates many frequency bands for energy ratio-based detection of echolocation clicks produced by a...
Resource Type:: Article

Seasonal presence of cetaceans and ambient noise levels in polar waters of the North Atlantic

Creator:: Klinck, Holger, Nieukirk, Sharon L., Mellinger, David K., Klinck, Karolin, Matsumoto, Haruyoshi, and Dziak, Robert P.
Abstract:: In 2009 two calibrated acoustic recorders were deployed in polar waters of the North Atlantic to study the seasonal occurrence of blue, fin, and sperm whales and to assess current ambient noise levels. Sounds from these cetaceans were recorded at both locations in most months of the year. During the...
Resource Type:: Article
Full Text:: Acoustical Society of America PACS numbers: 43.30.Sf, 43.80.Ka, 43.50.Rq [AL] Date Received: January 30, 2012

Acoustic classification of multiple simultaneous bird species: A multi-instance multi-label approach

Creator:: Briggs, Forrest, Lakshminarayanan, Balaji, Neal, Lawrence, Fern, Xiaoli Z., Raich, Raviv, Hadley, Sarah J. K., Hadley, Adam S., and Betts, Matthew G.
Abstract:: Although field-collected recordings typically contain multiple simultaneously vocalizing birds of different species, acoustic species classification in this setting has received little study so far. This work formulates the problem of classifying the set of species present in an audio recording using the multi-instance multi-label (MIML) framework for machine learning, and...
Resource Type:: Article
Full Text:: , species distribution modeling, and conservation planning. VC 2012 Acoustical Society of America. [http

ScholarsArchive@OSU

Observation of sound focusing and defocusing due to propagating nonlinear internal waves

Mid-frequency sound propagation through internal waves at short range with synoptic oceanographic observations

Cooperative prey herding by the pelagic dolphin, Stenella longirostris

Modeling the detection range of fish by echolocating bottlenose dolphins and harbor porpoises

Vocal repertoire of the social giant otter

Nighttime foraging by deep diving echolocating odontocetes off the Hawaiian islands of Kauai and Ni’ihau as determined by passive acoustic monitors

Tracking beaked whales with a passive acoustic profiler float

The energy ratio mapping algorithm: A tool to improve the energy-based detection of odontocete echolocation clicks

Seasonal presence of cetaceans and ambient noise levels in polar waters of the North Atlantic

Acoustic classification of multiple simultaneous bird species: A multi-instance multi-label approach

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