User manual

27
Prophet-10 User’s Guide
Filter Envelope
To hear the effect of the Filter Envelope:
1. Recall the basic preset by holding down record and pressing preset.
The rev3 lter is selected by default.
2. Hold down a note and rotate the lter’s cutoff knob to set it to 3.
3. Play a note. At this point you may not hear anything because you’ve
closed the lter signicantly.
4. Turn the envelope amount knob to 2. Play a note. Notice how the sound
has changed. The Filter Envelope is controlling lter cutoff by the
amount you set with the amount knob.
5. Set the Filter Envelope’s sustain to 0.
6. Repeatedly strike a note on the keyboard as you turn the Filter Enve-
lope’s decay knob clockwise and counterclockwise. Notice how it
changes the sound as the note decays faster or slower after its initial
attack stage.
7. Now experiment with the Filter Envelope’s attack knob. Notice how
the attack becomes faster or slower.
8. Now hold down a note and experiment with the Filter Envelope’s
sustain knob. This controls how wide the lter stays open while you
hold down a key on the keyboard.
9. The Filter Envelope’s release parameter acts in conjunction with the
Amplier Envelope, so to hear its effect, rst set the Amp Envelope’s
release value to 6.
10. Now repeatedly strike a note on the keyboard as you turn the Filter
Envelope’s release knob clockwise and counterclockwise. Notice how
the note fades out faster or slower as you change the release value.
11. Continue experimenting with various Filter Envelope settings while
you adjust the Filter Envelope’s env amount knob. Notice how greater
amount settings amplify the effect of the envelope on the lter.
As noted above, the Filter Envelope and Amplier Envelope often work
in conjunction, with the Filter Envelope controlling how the lter opens
and closes and the Amplier Envelope controlling how the Amplier
controls the overall volume shape of the sounds you create. To learn
more about the Amplier Envelope see page 28.
The release switch affects the behavior of the Release stage of the Filter and
Amplier Envelopes. See “The Release Switch” on page 43.