infrasonic


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infrasonic

[¦in·frə¦sän·ik]
(acoustics)
Pertaining to signals, equipment, or phenomena involving frequencies below the range of human hearing, hence below about 15 hertz. Also known as subsonic (deprecated usage).

infrasonic

Sounds that are below the audible hearing range; typically below 10 or 20 Hz. Contrast with ultrasonic.
References in periodicals archive ?
In Having Been Held Under the Sway, I use infrasonic sinewaves--really low frequencies that one feels in the body rather than hears--as a means of articulating the physical materials of a room.
A multidimensional evaluation method for the psychological effects of pure tones at low and infrasonic frequencies.
As air passed through the disembodied larynx in the lab, flapping vocal cords re-created sounds similar to an elephant's infrasonic blast in the lowest-pitched vibration, called the fundamental frequency.
distributor of the Nutational Infrasonic Liposculpture (N.
In 1989, Payne and her colleagues conducted a landmark experiment at a water hole in Etosha demonstrating that these powerful infrasonic tumbles contain specific messages that can be heard and understood by other elephants more than two miles away.
The book begins with an introduction to techniques behind the statistical design of experiments, then covers areas such as vibration isolation for sensitive instruments and machines, piezoelectric actuation for nanometer motion control, design of a viscosimeter, and infrasonic and ultrasonic microphones.
Pete Lyman, co-owner of Infrasonic Sound Recording and a full service mastering engineer who prepares masters for pressing onto vinyl, says LP sales are "saving the album as a format.
Some additional topics explored are family structure, bonding, infrasonic communication, mating, emotions, intelligence and evolution.
Last year Mahler became the first horse to win this after contesting a Classic since Infrasonic in 1993.
Infrasonic calls can travel effectively for miles though air, land and water to the animal's family members.