Hey guys, I'm very much a PD beginner, currently attempting to use it to just analyse input from a Microphone and create some values, that I am then passing to Processing and using as RGB values.

I have managed to get everything working great with the built in Mic on my Macbook.. Unfortunately I need to get it working with an external Microphone and Macbooks don't have a Microphone In, they have a Line In, that doesn't power devices.

Because of that I've had to get a little USB adapter that allows me to plug the mic in through the USB and it works well, my Macbook picks up the Mic.. Unfortunately Pure Data doesn't seem to see the USB mic at all..

I'm just wondering if I'm doing something wrong.. If anything needs to be changed when using USB input.. I'm just using an [adc~] thing at the moment.. Maybe I need to use a different kind of object or something to bring the USB sound in?

Any help would be fantastic, thankyou.

Oh, ignore everything I just said, I figured it out

Hey Eeky!
I'm also just getting started and running into the same problem. Do you think you could describe your solution?

sorry for reviving this ancient post- was frustrated at the lack of usable response. Found the solution:
Media>Audio Settings> Input device. Any USB audio input recognized by the system should appear there. Select the device you want to use.