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  2. Infrasound - Wikipedia

    en.wikipedia.org/wiki/Infrasound

    Infrasound wavelengths can be generated artificially through detonations and other human activity, or naturally from earthquakes, severe weather, lightning, and other sources. [73] Like forensic seismology , algorithms and other filter techniques are required to analyze gathered data and characterize events to determine if a nuclear detonation ...

  3. Perception of infrasound - Wikipedia

    en.wikipedia.org/wiki/Perception_of_infrasound

    It is known, however, that humans can perceive sounds below this frequency at very high pressure levels. [1] Infrasound can come from many natural as well as man-made sources, including weather patterns, topographic features, ocean wave activity, thunderstorms, geomagnetic storms, earthquakes, jet streams, mountain ranges, and rocket launchings.

  4. Sound - Wikipedia

    en.wikipedia.org/wiki/Sound

    Although sounds of such low frequency are too low for humans to hear as a pitch, these sound are heard as discrete pulses (like the 'popping' sound of an idling motorcycle). Whales, elephants and other animals can detect infrasound and use it to communicate. It can be used to detect volcanic eruptions and is used in some types of music. [35]

  5. What Can Humans Hear? Exploring the World of Auditory ... - AOL

    www.aol.com/humans-hear-exploring-world-auditory...

    Animals, such as dolphins and bats, have special hearing abilities compared to what humans can hear. __wf_reserved_inherit. As an audiologist, I have had the privilege of working with patients ...

  6. Hearing range - Wikipedia

    en.wikipedia.org/wiki/Hearing_range

    Hearing range describes the frequency range that can be heard by humans or other animals, though it can also refer to the range of levels. The human range is commonly given as 20 to 20,000 Hz, although there is considerable variation between individuals, especially at high frequencies, and a gradual loss of sensitivity to higher frequencies ...

  7. Sound from ultrasound - Wikipedia

    en.wikipedia.org/wiki/Sound_from_ultrasound

    The UK's independent Advisory Group on Non-ionising Radiation (AGNIR) produced a 180-page report on the health effects of human exposure to ultrasound and infrasound in 2010. The UK Health Protection Agency (HPA) published their report, which recommended an exposure limit for the general public to airborne ultrasound sound pressure levels (SPL ...

  8. Scientists Heard Deep Sounds in the Stratosphere. They Can't ...

    www.aol.com/scientists-heard-deep-sounds...

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  9. Microwave auditory effect - Wikipedia

    en.wikipedia.org/wiki/Microwave_auditory_effect

    The microwave auditory effect, also known as the microwave hearing effect or the Frey effect, consists of the human perception of sounds induced by pulsed or modulated radio frequencies. The perceived sounds are generated directly inside the human head without the need of any receiving electronic device.