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YES its used a lot in subliminal messages
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∙ 11y ago
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Can you hear sound from a mile away?
Depends on the Hz that the sound is measured by.
What frequencies of sound can people normally hear?
20 Hz to 20,000 hz is the recognized range.
What type of sound wave can not be heard by humans?
Any sound wave below roughly 20 Hz or above roughly 20,000 Hz can't be heard by humans.
Why do humans use sounds they cannot hear?
the sound caoacity for human beings are from 20 hz to 20000 hz.we use ultrasound to check the defects of metals
What is the lowest frequency for humans?
Assuming you mean the lowest frequency humans can hear, that's about 20 Hz.
What frequencies of sound can humans hear?
typically 20-20000 Hz - but this range will decrease with age
Which type of sound wave can not be detected by humans?
Humans can hear with in a range of 20 Hz - 20,000 Hz. Below 20 Hz is infrasound, and above 20,000 Hz (20 kHz) is ultrasound.
What sound frequencies can humans hear?
typically 20-20000 Hz - but this range will decrease with age
How high can humans hear?
Generally speaking humans can hear from 20-20,000 Hz.
What is audio sound?
Audio sound is sound which human beings can hear. That is 20 Hz to 20,000 Hz for HiFi.
What frequencies of sound are infrasonic?
Any frequency that is lower than those that humans can hear - that is, lower than about 20 Hz.
Can you hear sound from a mile away?
Depends on the Hz that the sound is measured by.
The lowest frequency that humans can hear is?
20 Hz.
What frequencies of sound can people normally hear?
20 Hz to 20,000 hz is the recognized range.
How sensitive is a dog's hearing?
Humans can hear approximately 64-23,000 Hz sounds, dogs hear about 67-45,000 Hz sounds.
What type of sound wave can not be heard by humans?
Any sound wave below roughly 20 Hz or above roughly 20,000 Hz can't be heard by humans.
How do dogs hear?
They can hear low sounds about as well as humans (40 Hz, compared to our 20 Hz), and can hear sounds that are a quite a bit higher (60,000 Hz, compared to our 20,000 Hz). They are more sensitive to loud sounds - loud noises that humans can tolerate may be painful to dogs. The flipside of this is that they can hear sounds that are 4 times farther away.
