Sound of the fireworks fired in Cauterets (in France), on 14-7-2019; final bouquet then distant applause at the end. UCS Category: FRWKComr. Duration: 01:34.
Pink noise or 1/ƒ noise (sometimes also called flicker noise) is a signal or process with a frequency spectrum such that the power spectral density (energy or power per Hz) is inversely proportional to the frequency: en.wikipedia.org/wiki/Pink_noise. UCS Category: TEST. Duration: 00:19.
Paris apartment. First floor. Closed window (some glass vibrations at low frequencies), before crossing a boulevard (acceleration and braking of vehicles). UCS Category: AMBRoom. Duration: 04:02.
Several beeps of an active sonar. This is a low frequency sonar (long range but low definition). It is a sine wave of 1040 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.
Singing a field cricket. Present in France, the field cricket digs a hole in the sunny plains and sings to seduce the female. UCS Category: ANMLInsc. Duration: 00:36.
Noise of a helicopter. Recording from inside. Wind noise in the paddles. Low and muffled. Sound is difficult loopable. UCS Category: AEROHeli. Duration: 00:08.
The last birds to sing. A few minutes before night in the countryside. Recorded on May 2, 2020 around 9 p.m. Easy to loop.
. UCS Category: AMBBird. Duration: 03:56.