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Slow Down (unidentified sound): Wikis

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The spectrogram of Slow Down
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Slow Down is a sound recorded on May 19, 1997, in the Equatorial Pacific ocean by the U.S. National Oceanic and Atmospheric Administration. The source of the sound remains unknown.

Analysis

The name was given because the sound slowly decreases in frequency over about 7 minutes. The sound was detected at 15°S 115°W / 15°S 115°W / -15; -115. It was recorded using an autonomous hydrophone array.[1] The sound has been picked up several times each year since 1997. One of the hypotheses on the origin of the sound is moving ice in Antarctica. Sound spectrograms of friction closely resemble the spectrogram of the Slow Down. This suggests the source of the sound could be a friction phenomenon of ice rubbing over land.[2]

See also

References


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