An excited crowd, saying hooray, being all around happy and excited for an event. It's ideal for those who want a generic all purpose crowd cheering sound.
Low pitch static which reminds me of 1950s sci-fi television. Created by filtering a static wave from an analog radio then slowing the pitch and adding a mechanization effect.
Different frequencies of sounds from the radio transmission in the basement carpark resembling that of an alien-ish futuristic noises. Recorded using edirol r-09, 15cm from speakers.