Now, after some research and reading through the forum, it seems clear, that there is no way to hear sound of an imported video in pIllusion. So let's put this one onto the wishlist! :)
I started to create some pulsing emitters by hand now, and came across another feature, which I would like to see in a next version of pIllusion, or maybe it is already there, but I did'nt find it:
I tried to copy the reference poinst of the "size" of a particle to "visibility" to synchronize these effects.
As there is no way to directly copy the data as it seems, I tried to export as position date (AE format to clipboard), which causes a crash of pIllusion (3.0.8x, OS X, G5 PCC).
Is there any way to do this to get a precise synchronisation of effects (or there reference points)?