1. cd to folder and flosc then type; java Gateway 7000 3000
2. launch pong in maxmsp > runtimes > mac > VoicePong
3. launch flash > examples > pong.swf 

Have a look at; 

http://www.tree-axis.com/Ess/_examples/inputFFT/inputFFT.pde << Processing
http://music.ece.drexel.edu/ALFdocs/files/DATF-as.html << Alchemy compiled c++ app with interface for AS3