Four territorial hisses of a male barn owl (Tyto alba). It is also referred to as the common barn owl. To learn more, go to Wiki: en.wikipedia.org/wiki/Barn_owl. UCS Category: BIRDPrey. Duration: 00:19.
Cinema projector (35mm Kinoton, FP30) without fan or lamp: Getting Started, then roullage extinction (Sound: Before mechanism). Can synchronize its 0070. UCS Category: COMAv. Duration: 00:41.
A small audience applauds after a piece played by a small band in a bar. Thanks to the music group "Les Accroch'Coeur": LesAccrochCoeur.com. UCS Category: CRWDCheer. Duration: 00:03.
Starting a NAS computer server. This is a Synology with 4 HDD hard drives. Fan noise, start disks one by one, then work. UCS Category: CMPTDriv, UIData. Duration: 03:28.