How can I get signal from audio interface?

Hi. I am using 4 contact mics plugged into audio interface.
How can I get the 4-channel signals in openframeworks from audio interface?
Can I use Ableton as the transmitter to transmit signal to oF?
If I wanna use the 4-channel signals to trigger some sound sample, can I send the sound to Ableton back using OSC?

Thanks for any reply and better solution.