Omnipresent sun or overwhelming heat, this is a sound effect that is widely used in films. I made this sound in the studio, failing to find it in nature. Maybe it's an insect? If you know more about the source of this noise, tell me. According to another anonymous visitor: The Arizona Apache Cicada is the loudest. UCS Category: ANMLInsc. Duration: 00:44.
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.
Telephone tone when searching a correspondent. This is a sound wave frequency of 440 Hz sinusoidal. This sound is easy to loop. UCS Category: COMTelph. Duration: 00:01.
Cries of a little bat found on the ground :'( Bats use ultrasound to move and hunt, but they also shout in some cases. UCS Category: ANMLBat. Duration: 00:13.
Telephone tone when the phone rings, in the UK, Ireland, New Zealand and many other countries with historical ties to the Commonwealth. These are two sound waves of frequencies 400 Hz and 450 Hz sinusoidal. This sound is easy to loop. UCS Category: COMTelph. Duration: 00:30.