Subsonic may refer to:
Motion through a medium
* Any speed lower than the
speed of sound
The speed of sound is the distance travelled per unit of time by a sound wave as it propagates through an elastic medium. At , the speed of sound in air is about , or one kilometre in or one mile in . It depends strongly on temperature as w ...
within a sound-propagating medium
*
Subsonic aircraft, a flying machine that flies at air speeds lower than the speed of sound
*
Subsonic ammunition, a type of bullet designed to avoid creating a loud shockwave when fired
*
Subsonic flight, an aircraft flight at air speeds lower than the speed of sound in air
*
Subsonic and transonic wind tunnel Low subsonic tunnel
Low-speed wind tunnels are used for operations at very low Mach number, with speeds in the test section up to 480 km/h (~ 134 m/s, M = 0.4). They may be of open-return type (also known as the Eiffel type, see figure), or clos ...
s
Music
*
''Subsonic'' (album), a 2002 album by Vigleik Storaas Trio
*
''Subsonic'' (EP), a 2013 EP by Younha
* ''Subsonic'' album series:
** ''
Subsonic 2: Bass Terror'', a 1995 album by Bill Laswell and Nicholas Bullen
** ''
Subsonic 3: Skinner's Black Laboratories'', a 1995 album by Andy Hawkins and Justin Broadrick
*
Subsonic Music Festival
Subsonic Music Festival is an annual electronic music festival held since December 2009 in a camping setting in Monkerai, Australia. It was established by Scott Commens (Sydney-based DJ), founder of Sydney based label and events organisation, Su ...
, an annual electronic music festival in Monkerai, Australia
See also
*
Infrasound, sound at frequencies below the normal threshold of human hearing
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