File:Infrasound_Arrays.jpg · Wikimedia Commons · See Wikimedia Commons
infrasound
Sign in to saveAlso known as low status sound, infrasonics
thumb|upright=1.5|Infrasound arrays at a monitoring station in Qaanaaq, [[Greenland]]
Wikidata facts
- Image
- Infrasound FFT.jpg
Show 2 more facts
- Commons category
- Infrasound
- exact match
- purl.obolibrary.org/obo/ENVO_01001566
via Wikidata · CC0
~23 min read
Article
14 sectionsContents
- History and study
- Sources
- {{anchor|Animal reactions to infrasound}}Animal reaction
- {{anchor|Human reactions to infrasound}}Human reactions
- Hygienic standards in the workplace
- Brown note
- ''Infrasonic'' 17 Hz tone experiment
- Suggested relationship to ghost sightings
- Detection and measurement
- Infrasound for nuclear detonation detection
- In popular culture
- See also
- References
- External links
thumb|upright=1.5|Infrasound arrays at a monitoring station in Qaanaaq, [[Greenland]]
Infrasound, sometimes referred to as low frequency sound or (sometimes ambigously) subsonic (subsonic being a descriptor for "less than the speed of sound"), describes sound waves with a frequency below the lower limit of human audibility (generally 20 Hz, as defined by the ANSI/ASA S1.1-2013 standard). Hearing becomes gradually less sensitive as frequency decreases, so for humans to perceive infrasound, the sound pressure must be sufficiently high. Although the ear is the primary organ for sensing low sound, at higher intensities it is possible to feel infrasound vibrations in various parts of the body.