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: 03:21.
I sing in overtone. Overtone singing is a vocal technique for producing a vocal timbre characterized by two notes of different frequencies. My first voice is a root F, my second is a whistle. more information on this song: en.wikipedia.org/wiki/Overtone_singing. UCS Category: VOXSing. Duration: 00:15.
Rewinding 35mm film: Acceleration and rolling (Recording: Right side of the dispenser (full spool)). Can synchronize its 0075. UCS Category: COMAv. Duration: 00:51.