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Another term for this is infrasonic, and it means pertaining to below hearing. There natural frequencies that humans can hear which are high: 20,000 Hz and low: 20 Hz. An average human cannot hear sounds below the frequency of 20 Hz. That is subsonic. Subsonic is a term also applied to aircraft that travel at speeds less than the speed of sound. Supersonic means it travels faster than the speed of sound.
Wiki User
∙ 14y ago
Wiki User
∙ 11y agoSubsonic sound is sound at a frequency (pitch) below the range of human hearing, typically below 20 Hz. It may be felt as a rumble but not heard as a distinct sound.
Ultrasonic sound is above the range of human hearing, typically above 20 kHz, though some children may hear sounds up to 40 kHz.
Wiki User
∙ 13y agoA1, the subsonic waves having<1.0 Mach Number. A2. In the event that you were referring to waves below normal human hearing, there are known as infrasonic waves or frequencies.
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What are wind tunnels and why do designers use them?
A subsonic wind tunnel is a wind tunnel that cannot take testing to Mach 1 (the speed of sound). There are a wide variety of wind tunnels, and they come in a broad range of sizes, too. They span models from ones that test motorcycle helmets to ones that test a whole small aircraft or aircraft model. A link is provided to the Wikipedia article on the wind tunnel, and you'll find that link below.
What is the gadget to measure sound volume?
The volume of a sound is measured by the sound pressure in pascals or newtons per square meter. The sound pressure level is measured by a sound pressure level meter (SPL meter).
What is the measure of sound?
Sound is usually measured in Hertz.
Which script based on sound?
Java script is based on sound.
What is a sentence for sound-proofing?
We are sound-proofing the new recording studio.Your neighbours really need to invest in some sound-proofing.
What is Subsonic Bullet?
Subsonic means "slower than the speed of sound" so a subsonic bullet is any bullet that travels slower than the speed of sound.
What is the difference between transonic and subsonic speeds?
Transonic being past the speed of sound and subsonic is below the speed of sound.
What is the difference between subsonic and super sonic?
subsonic is moving below the speed of sound, supersonic is faster than speed of sound
What's difference between subsonic and supersonic?
Subsonic is below or slower than the speed of sound, and supersonic is above or faster than the speed of sound.
What do you called if the Speed of objects less than the speed of sound?
Subsonic
How fast subsonic speed?
Less than the speed of sound in that medium.
The speed of an object traveling below the speed of sound is called?
subsonic
Does the A-10 Thunderbolt have the ability to break the sound barrier?
No. It's subsonic.
What best describes a flight approaching the speed of sound?
If accelerating to the speed of sound, the subsonic.
Can subsonic sound be harmful to human mental and physical health?
Subsonic sounds can affect internal organs. Once that is established the mental effects will be clear too.
What animal can hear subsonic sound vibration below 20 cycles?
food
What are the most silent guns?
With an effective sound suppressor and subsonic ammunition, the only sound you hear is the slide moving.
