lost with audio input

sven's picture

Hello, I'm stuck with a very simple comp. I have a diaporama from a director scanner, it has a "counter". If i connect a "keyboard" to the counter it increase without problem. Now i need an audio input so that the counter increase each time it receive a sound (at a certain volume). I tried to connect a mathematical expression to the audio but nothing. I guess i should simply have a "thrue or false" info out of the audio input but impossible ? The idea is that each time i clap my hand the diaporama goes to the next image, i thought it could be simple but it seems impossible, could someone give me the trick ?

sven's picture
Re: lost with audio input

got it working houraa