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.
In signal processing, white noise is a random signal having equal intensity at different frequencies, giving it a constant power spectral density (en.wikipedia.org/wiki/White_noise). A sound to use only wav, aiff or flac formats, because the other formats denature the interest of the sound. UCS Category: TEST. Duration: 05:00.