Operation Manual

6.67 Portamento 127
input signal
time =1s
time=0.25s
time=0.1s
time
amp
Figure 71: Behavior of Portamento as a function of time constant.
time
time
time
amp
amp
amp
gate signal
input signal
output signal
+1V +1V
Figure 72: Portamento triggered by gate signal.
Typical Use
The Portamento is often used to create a glissando effect between two notes. Figure 45 shows
a complete example of a Portamento triggered by a gate signal (when the on/off switch is off).
The Portamento is frequently inserted between a Keyboard module and a VCO to smooth the note
output of the Keyboard as shown in Figure 46. It is then switched on or off manually.