individual lters. Illustrations of all
the Patterns are in Appendix A, page
27.
Return to the basic setting shown
in gure 2, which features pattern 2.
As you play your instrument through
the MIDI MuRF, pay attention to
the sound of the effect and how it
corresponds to gure 10. You should
hear the Animation "stair-stepping"
Figure 10 - MIDS Pattern 2
through the lters. Turn the RATE control up and down and notice how
the pattern speeds up and slows down.
Now it’s time to explore the ENVELOPE Control - one of the most
powerful parts of the MIDI MuRF.
1) With the ENVELOPE Control set at 2, you should hear each of
the lters with a sharp attack and a decay that fades out smoothly but
quickly.
2) Turn the ENVELOPE control to 0 as you play through the MIDI
MuRF. The effect sounds much choppier - the decay time has been
decreased.
3) Now turn the ENVELOPE control up to 5. The effect now sounds
smooth - the attack is the same time as the decay - like a tremolo effect.
4) Turn the ENVELOPE control to 6. The effect becomes swirly and the
transitions from lter to lter blurred, as the Attack and Decay become so
long that the effect is crossfading from one lter to the next.
5) Finally, turn the ENVELOPE control up to 8. The effect now sounds
"backwards" as the attack time is now smooth but fast, and the decay is
abrupt.
What happens as you change the ENVELOPE control is that the
shape of the Envelopes controlling the gain of the lters morphs. Figure
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