This is a tune i've made out of a short saxophone riff (using edirol orchestral vst) which i've pitch shifted and reversed and reverbed and stuff and i think it sounds a bit 80s and very much like background music for some sort of tv program or film with spying or detectives or ghosts or possibly straight horror.
Series of knocks on glass computer screen. Could be used to simulate knocking on screen from inside or outside computer or television screen. Cleaned up to remove ambient noise. Clean knocks.
Zoom h1 recording, just did press record. Maybe 20 or 30 or more fire engines recorded at distancevery very long recording, but if you need lots of sirens they are plenty.