i know this is going to sound a bit daft but it is a serious question i'm afraid

can any of you think of a way of converting audio to g.code?

i was thinking about the LEDs you get on some sterios showing the volume of differant chanels from green up to red

now if i could find a way of translating that to stepper motors turning from 0 to around 190 degrees i could make a friend of mine very happy and i could even get a job out of it:naughty:

any thoughts would be apreciated

Dan