What kind of values does the Duration input expect?
The Duration input uses the same time cent scale as the SynthEdit ADSR time inputs. The range is nominally -10 to +10, but negative values that would result in a duration of less than one sample will not reduce the duration below that minimum. At a sampling rate of 44,100 Hz, this is reached at about -8.76 volts, and the corresponding minimum duration is approximately 0.02 ms. Unless there is good reason to do otherwise, it would be a good idea to set up your controls so that the upper limit on a release segment’s Duration pin is less than 10 volts. Duration increases exponentially with voltage, and an input value of +10 will result in a duration of approximately 10 seconds. Releases that long in a polyphonic setting will chew up a lot of CPU because of the number of voices that are kept active. For convenience, a DH_msToVoltage module can be connected to the Duration input to permit entry of the duration in milliseconds.