- infrasonic frequencies
- Those frequencies of vibration lower than those in the audible range. Also called subsonic frequencies.
Aviation dictionary. 2014.
infrasonic frequencies
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infrasonic — Denoting those frequencies that lie below the range of human hearing. [infra + L. sonus, sound] * * * in·fra·son·ic sän ik adj 1) having or relating to a frequency below the audibility range of the human ear 2) utilizing or produced by infrasonic … Medical dictionary
infrasonic — adjective a) Having frequencies below the human audible range b) Generating or employing such sound waves Ant: ultrasonic See Also: infrasonics, infrasound … Wiktionary
infrasonic — /ˈɪnfrəsɒnɪk/ (say infruhsonik) adjective of or relating to sounds with frequencies below the audible range …
ultrasonics — /ul treuh son iks/, n. (used with a sing. v.) the branch of science that deals with the effects of sound waves above human perception. [1930 35; see ULTRASONIC, ICS] * * * Vibrational or stress waves in elastic media that have a frequency above… … Universalium
Brown note — For similar phrases, see Brown note (disambiguation). Contents 1 Television show tests 2 Physiological effects of low frequency vibration 3 … Wikipedia
Cetacea — Cetaceans[1] Temporal range: 55–0 Ma … Wikipedia
Microbarom — In acoustics, microbaroms, also known as the voice of the sea ,[1][2] are a class of atmospheric infrasonic waves generated in marine storms[3][4] by a non linear interaction of ocean surface waves with the atmosphere … Wikipedia
Infrasound — is sound with a frequency too low to be heard by the human ear. The study of such sound waves is sometimes referred to as infrasonics, covering sounds beneath the lowest limits of human hearing (20 hertz) down to 0.001 hertz. This frequency range … Wikipedia
Acoustics — is the interdisciplinary science that deals with the study of sound, ultrasound and infrasound (all mechanical waves in gases, liquids, and solids). A scientist who works in the field of acoustics is an acoustician. The application of acoustics… … Wikipedia
Subwoofer — A subwoofer is a woofer, or a complete loudspeaker dedicated to the reproduction of bass audio frequencies, from perhaps 150 Hz down as far as 20 Hz, or in rare cases lower. Also known as subs , these are used to augment the low frequency… … Wikipedia
