(1) CONTROL SECTION: Operation and principles ^

1-13 GENERAL ENVELOPE GENERATOR (GEG)

Figure 23 - General Envelope Generator

1-13 GENERAL ENVELOPE GENERATOR (GEG)

As described earlier, the Envelope Modifiers section generates an envelope signal for each of the keys on the keyboard. The GEC, on the other hand, generates a general envelope that controls every section of the PS-3100.

Figure 24 - General Envelope Generator in use

With the settings shown in figure 24, listen to the changes in pitch over time as you play and release a key. Now notice how the timing of the effect varies when you change the Delay and Attack settings.

Figure 25 - General Envelope Generator output

Try setting the KBD Trigger Select Knob to "2", "3", "4" and "5" in turn and notice how this allows you to control the beginning of GEG operation dependent upon the number of keys played at once. (In this case, set the GEG controls as shown in figure 25.)

Next, turn on the VCA1 switch (with other controls at the normal setting) and confirm that the GEG controls the envelope of the total sound produced.

NOTE Instead of using the keyboard to generate the trigger signal, it is possible to use the Momentary Switch on the control panel. (This requires a patchcord connection.)