The I/O Setup provides a graphical representation of the signal routing for each connected audio interface, with controls to route physical ports on the audio interface to Pro Tools inputs and outputs. These controls mirror the routing controls found in the Hardware Setup—changes made to physical routing in one is always reflected in the other.The I/O Setup lets you label and map Pro Tools input, output, insert, and bus signal paths. The I/O Setup also provides important audition, meter, and surround settings. For more information, see I/O Setup.