The sound of a detector. Like a metal detector. Generated with a computer. This is a sawtooth wave, with a frequency of 400 Hz then the same at 800 Hz. UCS Category: BEEPAppl. Duration: 00:07.
Sound of a 51cm (20") cymbal, struck with a wooden drumstick. This is a Mini Cup Ride cymbal by Avedis Zildjian. UCS Category: MUSCPerc. Duration: 00:09.
Two helicopters landing and taking off one after the other. Sound recording during the open day of the UIISCI in Nogent-le-Rotrou in France. UCS Category: AEROHeli. Duration: 02:52.