Inserting a pencil in a pencil sharpener.
Ambiance of a busy post office with crowd chatter and footsteps.
Interior atmosphere of commercial copy center - machines running with no audible human activity.
Garage room tone - no activity, low hum.
Interior atmosphere of garage - electrical hum from lights.
Quiet interior atmosphere of carpeted cabin, mild room tone.
House bathroom room tone with rattling vent fan.
Interior atmosphere of house parlor, distant family sounds from kitchen
Interior of subway station entrance - sparse activity, scattered waves, turnstiles, escalators and voices.
Interior atmosphere of subway station - light activity with turnstiles and escalators.