6.1.3. Bass Section: Filter and Envelope controls
The Bass Section, on its own or combined with the LFO Section, adds so many features to
the Bass instrument that it effectively becomes a full-on monophonic synthesizer. (This is a
nice nod to the
Solina String Synthesizer
, a later-model Solina that included a built-in
ARP
Explorer I
monophonic synth.) It's laid out in two parts with different functions, which we'll
cover one at a time.
The left side of the Bass section adds controls for a resonant filter with simple envelope
parameters for cutoff frequency and level.
Cutoff
: Controls the filter cutoff frequency. When it's set to a low enough value, the Attack
and Release stages of the envelope will be audible (similarly to the Bass Cut control). The
cutoff frequency can be set anywhere from 20Hz to 20kHz.
Resonance
: Will emphasize frequencies near the cutoff frequency, producing tonal sweeps
as the Cutoff is changed.
At very high Resonance, the filter can start to
self-oscillate, meaning it generates its own tonality in
addition to the other sound sources. Watch your output levels when you set Resonance to its highest
values!
Env Amount
: This knob sets how much the Attack and Release will affect the Cutoff. Their
effect will be most audible if the Cutoff is set fairly low.
Attack
: When a key is pressed, the filter frequency will start at the Cutoff value and sweep
upward by an amount determined by the Env Amount knob. Attack is the amount of time
this rise will take, and can be set from 0 to 3000ms.
Release
: When a key is released, the filter frequency will drop back down to the Cutoff once
more. Release is the amount of time the return will take, and can be set from 0 to 4000ms.
Bass Sustain
: This slider controls how long the Bass instrument will take to fade to silence
after a key is released. It can be set from 0 to 4000ms, and is the equivalent of the Upper
instrument's Sustain Length control on the Main Panel.
Remember that Crescendo affects both the Bass and Upper instruments.
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Arturia - User Manual Solina V - The Advanced Panel