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 Subsonic ammunition is ammunition designed to operate at velocities below the speed of sound, which at standard conditions is or Mach 1. This avoids the supersonic shockwave or "crack" of a supersonic bullet, which, particularly for suppressed ...
, 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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