A type of non-ionizing radiation in which energy is transmitted through solid, liquid, or gas as compression waves. Sound (acoustic or sonic) radiation with frequencies above the audible range is classified as ultrasonic. Sound radiation below the audible range is classified as infrasonic --consider also terms at PHON-
Armstrong, William Howard, 1914- Sounder : Children's literature review. Volume 117 : excerpts from reviews, criticism, and commentary on books for children and young people / Tom Burns, project editor
Gas tubing -- Soundproofing : Duct acoustics : fundamentals and applications to mufflers and silencers / Erkan Dokumaci, Dokuz Eylül University
2021
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Health facilities -- Soundproofing -- Standards : Sound & vibration 2.0 : design guidelines for health care facilities (2010) / David Sykes, Gregory C. Tocci, William J. Cavanaugh, editors