AV Clash [Flash, WebApp, Sound] – Make audiovisual compositions.. http://bit.ly/egDOaR

AV Clash is a Web-based project by Video Jack (André Carrilho and Nuno Correia, with Gokce Taskan) evolved AVOL – AudioVisual OnLine (2007), which allows the creation of audiovisual compositions, consisting of combinations of sound and audio-reactive animation loops. AV (AudioVisual) Clash is composed of 4 audiovisual “objects”, which enable playback and manipulation of four different loops of sound and audio-reactive visuals. Objects can be dragged and thrown, creating interactions (clashes) between them. The sounds in AV Clash are retrieved from Freesound.org, an online sound database. Users can change which 4 sound and animation loops are contained in each of the objects.
Have a play at http://avclash.com