Mountain torrent, Hautes Pyrénées, not far from the "Ferme Basque" (near Cauterets), in the middle of a steep wood. Altitude of the sound recording: 1153m. UCS Category: WATRFlow. Duration: 03:51.
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.
Several beeps of an active sonar. This is a low frequency sonar (long range but low definition). It is a sine wave of 1190 Hz frequency easy to put in loop. In reality, a military submarine usually has passive sonar, more sonar info: en.wikipedia.org/wiki/Sonar. UCS Category: BOATSub. Duration: 00:21.
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 A, my second is a whistle. more information on this song: en.wikipedia.org/wiki/Overtone_singing. UCS Category: VOXSing. Duration: 00:13.
