Listen to the sound clip Police Helicopters Sanfrancisco 2003Mar03 #demonstration #helicopters #jet ranger #protest #san francisco @medialint from Demonstration SFX:

This sound is from Demonstration SFX

You can hear the cacophony of sounds that make up the atmosphere of a demonstration in these audio recordings. From the shrill whistles of the protestors to the rhythmic beating of drums, each sound adds to the symphony of voices de…