0:12
Vacuum cleaner switching on, running briefly and shutting off with resonance.
0:04
Vacuum cleaner switching on, running briefly and shutting off.
0:19
Rotating motor element - slow whir to accelerate.
0:12
Rotating motor element - sputtering whir (2).
0:10
Rotating motor element - sputtering whir (1).
0:09
Rotating motor element - wavering, rubbery whir.
0:02
Pneumatic mechanism - single-stage smooth air release (1).
0:02
Pneumatic mechanism - two-stage smooth air release (1).
0:07
Smooth, crisp scratching on stone.
0:10
Moderate scratching on stone, with humming.
0:06
Caustic scratching on stone.
0:14
Slow scratching on stone with a squeak.
0:10
Ringing, jingling scratching.
0:08
Incrimental caustic scratching on stone (1).
0:07
Long, caustic scratch on stone.
0:10
Smooth, slow scratching on stone (1).