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Universal Category System (UCS)

Logo UCS

The UCS, for "Universal Category System", is a public domain initiative by Tim Nielsen, Justin Drury and Kai Paquin, among others. This is a list of fixed and consistent categories for classifying sound effects. It provides consistency in a filename structure to make naming and categorizing easier for anyone who maintains their own personal or professional library. This sound library meets the UCS 8.2 categorization.

To find out more, visit the UCS website

Categories (UCS)

UCS : AIR
AIR (9)

UCS : AIRCRAFT
AIRCRAFT (17)

UCS : ALARMS
ALARMS (38)

UCS : AMBIENCE
AMBIENCE (219)

UCS : ANIMALS
ANIMALS (160)


ARCHIVED (10)

UCS : BEEPS
BEEPS (33)

UCS : BELLS
BELLS (83)

UCS : BIRDS
BIRDS (58)

UCS : BOATS
BOATS (13)

UCS : BULLETS
BULLETS (17)


CARTOON (32)

UCS : CERAMICS
CERAMICS (10)

UCS : CHAINS
CHAINS (11)

UCS : CHEMICALS
CHEMICALS (0)

UCS : CLOCKS
CLOCKS (26)

UCS : CLOTH
CLOTH (14)

UCS : COMMUNICATIONS
COMMUNICATIONS (249)

UCS : COMPUTERS
COMPUTERS (27)

UCS : CREATURES
CREATURES (21)

UCS : CROWDS
CROWDS (52)


DESIGNED (3)

UCS : DESTRUCTION
DESTRUCTION (0)


DIRT & SAND (1)

UCS : DOORS
DOORS (58)

UCS : DRAWERS
DRAWERS (8)

UCS : ELECTRICITY
ELECTRICITY (29)


EQUIPMENT (10)

UCS : EXPLOSIONS
EXPLOSIONS (4)

UCS : FARTS
FARTS (10)

UCS : FIGHT
FIGHT (21)

UCS : FIRE
FIRE (37)

UCS : FIREWORKS
FIREWORKS (15)


FOLEY (4)

UCS : FOOD & DRINK
FOOD & DRINK (133)

UCS : FOOTSTEPS
FOOTSTEPS (64)

UCS : GAMES
GAMES (11)

UCS : GEOTHERMAL
GEOTHERMAL (0)

UCS : GLASS
GLASS (55)

UCS : GORE
GORE (27)

UCS : GUNS
GUNS (23)

UCS : HORNS
HORNS (16)

UCS : HUMAN
HUMAN (86)

UCS : ICE
ICE (20)

UCS : LASERS
LASERS (5)

UCS : LEATHER
LEATHER (0)

UCS : LIQUID & MUD
LIQUID & MUD (2)

UCS : MACHINES
MACHINES (84)

UCS : MAGIC
MAGIC (0)

UCS : MECHANICAL
MECHANICAL (19)

UCS : METAL
METAL (74)

UCS : MOTORS
MOTORS (60)


MOVEMENT (11)

UCS : MUSICAL
MUSICAL (206)

UCS : NATURAL DISASTER
NATURAL DISASTER (0)

UCS : OBJECTS
OBJECTS (81)

UCS : PAPER
PAPER (42)

UCS : PLASTIC
PLASTIC (36)

UCS : RAIN
RAIN (12)

UCS : ROBOTS
ROBOTS (67)

UCS : ROCKS
ROCKS (2)

UCS : ROPE
ROPE (7)


RUBBER (0)

UCS : SCIFI
SCIFI (15)

UCS : SNOW
SNOW (2)

UCS : SPORTS
SPORTS (14)


SWOOSHES (13)

UCS : TOOLS
TOOLS (57)

UCS : TOYS
TOYS (36)

UCS : TRAINS
TRAINS (36)

UCS : USER INTERFACE
USER INTERFACE (8)

UCS : VEGETATION
VEGETATION (7)

UCS : VEHICLES
VEHICLES (170)

UCS : VOICES
VOICES (68)

UCS : WATER
WATER (96)

UCS : WEAPONS
WEAPONS (25)

UCS : WEATHER
WEATHER (7)

UCS : WHISTLES
WHISTLES (18)

UCS : WIND
WIND (22)

UCS : WINDOWS
WINDOWS (14)

UCS : WINGS
WINGS (11)

UCS : WOOD
WOOD (13)

Cut out following the dots