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EIA Database

Masking release at 4 and 32 kHz in harbor seals associated with sinusoidal amplitude-modulated masking noise

2023
Open Access Research Article

Journal of the Acoustical Society of America

Kastelein, R.A., Helder-Hoek, L., Defillet, L.N., Terhune, J.M., Beutelmann, R., Klump, G.M.

Across situational contexts, and with the temporal and spatial scales over which exposures occur....
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Keywords: Acoustic noise, Amplitude modulation, Anthropogenic, Auditory perception, Bioacoustics of mammals, Frequency modulation, Hydrophone, Signal processing, Signal-to-noise ratio, Underwater acoustics

Observations of noise due to Nonlinear Internal Waves in the ASIAEX Experiment in the South China Sea

2023
Open Access Peer Reviewed Research Article

Proceedings of Meetings on Acoustics

Jiang, Y., Katsnelson, B. and Godin, O.A.

Noise bursts observed during ASIAEX experiment on a 48-hydrophoen array in south China sea. Area known for exceptionally strong nonlinear internal waves. Far propagating NIWs characterized...
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Keywords: Acoustics, Hydrophone, Internal waves, Oceanography, Resistors, Spectral phenomena and properties

Broadband spectra of seismic survey air-gun emissions, with reference to dolphin auditory thresholds

1998
Pay-walled Journal Article

The Journal of the Acoustical Society of America

Goold, J. C. and Fish, P. J.

Acoustic emissions from a 2120 cubic in. air-gun array were recorded through a towed hydrophone assembly during an oil industry 2-D seismic survey off the West...
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Keywords: Acoustic noise, Acoustic phenomena, Auditory threshold, Bioacoustics of mammals, Hydrophone

Low-frequency whale and seismic airgun sounds recorded in the mid-Atlantic Ocean

2004
Pay-walled Journal Article

The Journal of the Acoustical Society of America

Nieukirk, S. L.

Beginning in February 1999, an array of six autonomous hydrophones was moored near the Mid-Atlantic Ridge (35°N–15°N, 50°W–33°W). Two years of data were reviewed for whale...
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Keywords: Aquatic ecology, Bioacoustics of mammals, Hydrophone, Oceans, Spectrograms, Vocalization

A dive counting density estimation method for Blainvilles beaked whale (Mesoplodon densirostris) using a bottom-mounted hydrophone field as applied to a Mid-Frequency Active (MFA) sonar operation

2010
Pay-walled Peer Reviewed Publication

Applied Acoustics

Moretti, D., Marques, L., Thomas, N., DiMarzio, A. et al.

We present a passive acoustic method for estimating the density of echolocating cetaceans that dive synchronously, based on isolation of dive starts using a field of...
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Keywords: Beaked whale, Diving, Hydrophone