Several beeps of an active sonar. This is a low frequency sonar (long range but low definition). It is a triangular wave of 1030 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: 00:31.
Sound atmosphere of a cave. Created on computer, with sounds from LaSonotheque: Rain, drops of water and reverberation. Easy to loop. UCS Category: AMBUndr. Duration: 01:11.
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.
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.
Big drops of rain on a car windshield. These may be immediately followed by sound # 1296 (Storm and rain on car windshield). Sound recording inside the vehicle. UCS Category: RAINGlas. Duration: 01:13.
Stream flowing down a wooded mountainside, far from any busy road; no birds in the area. Hautes Pyrénées, near the old spa resort of PAUZE, located not far from Cauterets (65110). Altitude of the sound recording: 1053 m. Date: 05-07-2022, afternoon. Weather: overcast, foggy, stormy, no wind. UCS Category: WATRFlow. Duration: 04:49.
