Hallo, Alexander Franca Fernandes hat gesagt: // Alexander Franca Fernandes wrote: You might want to take a look at some of the graphical sound systems, then. For example Pd (www.pure-data.org) is very easy to set up and yet very powerful. You could use some of the Pd extensions to create images of sound or the other way around. GEM is very easy to get started with, if you have an OpenGL enabled card. For reading from a TV card (or webcam) PDP is nice. This is directly programming the soundcard hardware. Do you really want to do that? In my opinion this could be too difficult for your pupils, if they don't have a certain background with that. But I may be wrong. Anyway, using something like Pd will still be a good experience, because you get to see the whole picture of sound generation better. The Pd author Miller S. Puckette also uses Pd to teach sound synthesis and such. See his upcoming book at http://www.crca.ucsd.edu/~msp/techniques.htm I'd be glad to hear about your experiences. I think, you will need some mathematics, but nothing too complicated. A bit of trigonometry is very useful in computer sound but you can get far with knowing just muliplication and summing. At least in Pd, that is. ciao -- Frank Barknecht _ ______footils.org__