I need a extension who can receive the sound of a micro or/and line in of the sound card. (all inputs in the card) I just found a extension for output sounds (volume.mfx)

I want to be able to do, ex : if me micro receive more than 30 decibels, that do something.

I'm not good enought to do it by myself because I'm not a programmer so could somebody do this extension?

Thanks