pd and audiofeed

[malfunktion]

hi there :)

after a couple of years experimenting with 3dsmax/afx etc. and working as a flash webdesigner i just lately got the idea of blending it all together in a vj-act. so i started messing around with pd/gem and i managed to fix my own midi-controlled avi player without any problems.

but now the tricky part. i want to make some kind of audio feed so that the motion will snap to the beat somehow. now i tried the 'bonk~' funktion and tried several things with the 11 band levels, but without results. can someone explain me how audiofeed, in fact, 'works'. is it nothing more then a build in bpm calculator thats adjusting the speed of the frames? or is it more about doing several things with the frequencies, apart from each other? would be great if some experienced ppl could enlighten me:)

thanks,
martijn

[jaw]

the way we do beatdetection is basically, we don't.

we do FFT and just listen to some of the bass frequencies and link it to the size of blobs, camera speed or whatever.. in case you don't need to get the BPM-number IMHO this is very well sufficient.

[Kevin]

Does anyone know of any third party components that can be used for beat detection? I slept through my signal processing class in college.