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  2. List of unexplained sounds - Wikipedia

    en.wikipedia.org/wiki/List_of_unexplained_sounds

    Upsweep is an unidentified sound detected on the American NOAA's equatorial autonomous hydrophone arrays. This sound was present when the Pacific Marine Environmental Laboratory began recording its sound surveillance system, SOSUS, in August 1991. It consists of a long train of narrow-band upsweeping sounds of several seconds in duration each.

  3. Category:Unexplained phenomena - Wikipedia

    en.wikipedia.org/wiki/Category:Unexplained_phenomena

    Unidentified sounds (11 P) U. Unidentified flying objects (5 C, 7 P) W. ... Pages in category "Unexplained phenomena" The following 35 pages are in this category, out ...

  4. Category:Unidentified sounds - Wikipedia

    en.wikipedia.org/wiki/Category:Unidentified_sounds

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us

  5. NASA offers explanation for bizarre 'trumpet noise' phenomena

    www.aol.com/news/2015-05-22-nasa-attempts-to...

    Eerie noises have been recorded all over the world recently. NASA is now offering up a possible explanation. NASA offers explanation for bizarre 'trumpet noise' phenomena

  6. Mysterious sounds emanating from the depths of the ocean ...

    www.aol.com/mysterious-sounds-emanating-depths...

    The bursts of sound resemble quacks, earning the recording the nickname “Bio-Duck.” Speculation about their source was varied. It could be an underwater submarine, or a fish .

  7. The Hum - Wikipedia

    en.wikipedia.org/wiki/The_Hum

    The Hum is a name often given to widespread reports of a persistent and invasive low-frequency humming, rumbling, or droning noise audible to many but not all people. Hums have been reported all over the world, including the United States, the United Kingdom, Australia and Canada.

  8. Mysterious 'sound' sickness prompts warning for Americans in ...

    www.aol.com/news/2018-05-23-mysterious-sound...

    Americans have been warned of "unusual sounds or piercing noises" and the State Department issued a health alert to U.S. citizens in China on Wednesday. Mysterious 'sound' sickness prompts warning ...

  9. Subways of Your Mind - Wikipedia

    en.wikipedia.org/wiki/Subways_of_Your_Mind

    In 2004, Darius' older sister, Lydia H., bought him a website domain as a birthday present, which he used to raise awareness of the unidentified songs in his collection. He then digitized his radio recordings, saving the songs as .aiff and .m4a files, and uploaded them to his site, named Unknown Pleasures after the 1979 album of the same name by English rock band Joy Division.