synthesize contraption sfx

repeat

repeatable

repetitive

loop

loopable

mechanism

mechanical thing

mechanic

device

apparatus

machine

automate

industrial

noise

work

work thingy

gadget

contrivance idea

gizmo

doohickey

rig

widget

gear

thingamajig

thingummy

thingamy

appliance

invention

inventor

engineering

object

run

creative

creativity

science

interesting

technology sound effect

sound design

soundfx

efx

fx

audio

production element

imaging element

royalty free

wav