Wilhelm cry was made by the actor Sheb Wooley. Its first use dates from 1951 - the movie "The Adventures of Captain Wyatt". Since then, it has been popularized by Ben Burtt on the saga Star Wars and in several hundred movies, series, commercials and video games. More infos : en.wikipedia.org/wiki/Wilhelm_scream. UCS Category: VOXScrm. Duration: 00:01.
Beep that is commonly used for censorship. This sound was made on computer. It is a sine wave of frequency 1000 Hz. UCS Category: BEEP. Duration: 00:10.
Telephone beep of an answering machine. This is a sound wave of 825 Hz sinusoidal frequency. This sound is easy to loop. UCS Category: COMTelph. Duration: 00:01.