What sound is 7hz?

Especially dangerous is infrasound at the frequency of 7 Hz, since this sound, generating frequencies, close to characteristic frequencies of the organs of our body, may disturb the heart or brain activity. Machines, natural sources storms, earthquakes, hurricanes, etc. generate infrasound.

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What is infrasound used for?

The majority of the sound from volcanoes is low frequency (below 20 Hz, the threshold of human hearing) and is termed infrasound. Recent research has demonstrated how infrasound can be used to detect, locate, characterize, and quantify volcanic eruptions , providing a valuable tool for volcano monitoring.

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How does infrasound affect humans?

There is no agreement about the biological activity of infrasound. Reported effects include those on the inner ear, vertigo, imbalance, etc.; intolerable sensations, incapacitation, disorientation, nausea, vomiting, and bowel spasm; and resonances in inner organs, such as the heart.

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Is 10 Hz a low frequency?

The range from 10Hz to 100Hz may be considered as the low frequency region , with a possible extension by an octave at each end. There is no need to consider infrasound as a “special case”. However, audible sounds at the lowest frequencies will be at a high decibel level (Table I).

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