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infrasonic |
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infrasonic Refers to sounds that are below the audible hearing range; typically below 10 or 20 Hz. Contrast with ultrasonic.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). Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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