Strong wind in a tree and a patch of jail. Noise needles of a pine tree, a bird cries, wind variable. Learn to imitate the sound of the wind www.libertivi.com/lelabodubruiteur_122. UCS Category: WIND. Duration: 01:18.
Beep used to censor. This sound was made on a computer. It is a half-second sine wave with a frequency of 1000 Hz. UCS Category: BEEP. Duration: 00:01.
Very big modern train horn. It is a construction train, stationary (no Doppler-Fizeau effect). Sound recording at about 150 meters. UCS Category: TRNHorn. Duration: 00:06.
Many frogs sing near a pond in the city center. Sound recording at 2 meters. Sound of a waterfall in the background. UCS Category: AMBSwmp. Duration: 02:29.