Access Virus TI, User Manual

Page: 26 / 218

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> BS = Band Stop: Rejects frequencies close to the cutoff
point (within a certain “band”) i.e. allows frequencies above
or below the cutoff point to pass through.
Your Virus actually has yet another filter mode which simulates
the classic Minimoog
™
low pass (including it’s typical self-
oscillation). This cannot be selected directly from the panel,
but only from within the filter EDIT menu. If you simply can’t
wait to try it out, bookmark this paragraph and see “Mode” on
page 142.
At this point you should experiment with each filter mode in
isolation i.e. listen to only one of the filters at a time: Restore
ROM-A127, take FILTER BALANCE down to -64 (this isolates
Filter 1), and use the FILT1 button to select another mode. Play
your keyboard while adjusting CUTOFF and RESONANCE.
Repeat until you have become familiar with all four modes.
While experimenting with BS (Band Stop), did you notice how
turning the RESONANCE knob up doesn't actually add reso-
nance, but narrows the band instead? Very subtle...
RESONANCE 2
Via SHIFT + RESONANCE. Filter 2 resonance only. Although
you can press the SELECT button labelled FILT2, then use the
RESONANCE knob (without SHIFT), it is often faster to use
SHIFT + RESONANCE for on-the-fly adjustments because you
don’t have to check the status of the LEDs above the SELECT
buttons first.
KEY FOLLOW
Via SHIFT + ENV AMOUNT. High notes are generally brighter
than low notes when played on acoustic instruments.
KEY FOLLOW can emulate this effect by making Cutoff follow
the notes you play...
Restore ROM-A127, take CUTOFF down to around 64 and
play the keyboard to get used to the sound of a “flat” filter
across the entire keyboard. Then hold down SHIFT and turn
KEY FOLLOW (i.e. the ENV AMOUNT knob) up to maximum.
Play your keyboard again.
There are several important parameters in the filter menu, a
few of which have already been mentioned in passing – here
are the ones you should become familiar with first. Press the
EDIT button in the FILTERS section and use the PARAMETER
buttons to find the following page:
> Into the Filter Menu