The most dangerous frequency is at the median alpha-rhythm frequencies of the brain: 7 hz . This is also the resonant frequency of the body’s organs.
Read moreCan you hear 19 Hz?
The key here is frequency: 19hz is in the range known as infrasound, below the range of human hearing , which begins at 20hz.15 Eki 2003
Read moreIs 20 Hz high or low-frequency?
Sound at 20-200 Hz is called low-frequency sound, while for sound below 20 Hz the term infrasound is used.
Read moreWhat sound induces fear?
One study has suggested that infrasound may cause feelings of awe or fear in humans. It has also been suggested that since it is not consciously perceived, it may make people feel vaguely that odd or supernatural events are taking place.
Read moreHow do I block infrasound?
Infrasound can only be blocked by a solid earplug , either custom fitted to the ear canal or sealed with jelly to generate an air-tight seal.
Read moreCan speakers play infrasound?
Subwoofers are speakers designed to reproduce these frequencies, adding realism to movies, video games and other media. By connecting a variable-frequency sine-wave oscillator to a self-amplified subwoofer, you can produce infrasound . Turn on the subwoofer and oscillator.
Read moreWhat frequency can you feel?
Humans can generally sense sounds at frequencies between 20 and 20,000 cycles per second , or hertz (Hz)—although this range shrinks as a person ages. Prolonged exposure to loud noises within the audible range have long been known to cause hearing loss over time.
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