tap.auto_thru~ Signal Routing Utility automatic switch Essentially an automatic switch, tap.auto_thru~ sends the first inlet's signal thru to the output unless the second inlet has a signal connected to it. If a signal is connected to the 2nd inlet, the first inlet is cut off.	from the library : Tap.Tools Format : External Environment : msp shareware Max 3.x / 4.x http://www.electrotap.com/taptools/