Eliminate noise in a muted subpatcher
pass~ is used above any outlet object that will handle a signal. When the audio in the subpatch is enabled, the pass~ object will pass its input to its output. However, when the audio in the subpatch is disabled using mute~ or the enable 0 message to pcontrol, pass~ will send a zero signal out its outlet.
|| The signal input is passed to the object's output unless a signal network is disabled using mute~ or the message sent to pcontrol, in which case, pass~ ensures that the signal network to which it is attached is turned off (outputs a 0-signal).
pass~ ensures that a muted signal is fully silenced