zerox~ functions as a zero-crossing counter or transient detector.
Sets the output volume for the click sent out the right outlet. Volume values are in the range 0.0-1.0. The default value is 1.0.
Common Box Attributes
Out left outlet: A signal whose value corresponds to the number of zero-crossings per signal vector which were detected during the period of the last signal vector.
Out right outlet: A click (impulse) whose volume is set by argument or by the message is sent out the right outlet whenever a zero-crossing is detected.