User Manual

24 Filter Envelope Dave Smith Instruments
Changing the Filter Envelope’s Response Curve
By default, the envelopes of all synthesizers are designed to have certain
type of response curve that is largely dependent on the preference of the
designer. In most cases, this can’t be changed. The current preference is
that the faster or snappier the envelopes, the better.
However, in the case of the OB-6, there is a hidden feature in the X-Mod
section that allows you to modify the responsiveness of the Filter Enve-
lope’s ADSR controls. This opens up a new level of ne adjustment of
these controls that is subtle but powerful. Try it and see.
To adjust the responsiveness of the lter envelope:
1. Select a program — such as a synth brass sound — that has a slightly
soft but bright attack.
2. Repeatedly play a series of notes or chords on the keyboard, so you can
hear the effect of the adjustments as you follow the steps below.
3. In the X-Mod section, enable the filtr freq as the only destination
(disable all other X-Mod destinations such as vco 1, shape 1, etc.).
4. In the X-Mod section, turn the filter env control slightly counterclock-
wise. Try a setting of about 11 o’clock.
5. Continue to play a series of chords and turn the amount knob in the
filter envelope section. Try moving it back and forth between 1
o’clock and 3 o’clock.
6. As you do this, compare different settings of the X-Mod filter env
control, the Filter Envelope amount, and different Attack, Decay,
Sustain, and Release settings on the Filter Envelope.
The interaction of these controls is worth exploring for greater exibility
and control of the Filter Envelope.