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VCF INPUT
Moving from left to right, the sliders in this section are as follows:
● VCF INPUT INSTR (0...127 ) :
Sets the volume of the direct audio signal of your instrument. Unity gain is at 127.
● VCF INPUT DIST (0...127 ) :
Sets the volume of the signal coming from the Distortion block.
● VCF INPUT AR DIST (0...127 ) :
Sets the volume of the signal coming from the Distortion block but processed in a
special way. (See A ttack/Release Distortion below for details.)
● VCF INPUT SYNTH (0...127 ) :
Sets the volume of the a udio signal coming from the VCO block (the synthesizer).
● VCF INPUT NOISE (0...127 ) :
Sets the volume of the a udio signal coming from the noise generator.
Attack/Release Distortion
As mentioned earlier, the synthesizer signal passes through the VCA and its loudness
contour is controlled by the VCA envelope. If you set a long attack time on the VCA
envelope, then the synth sound will fade in slowly after a note is played. By contrast, the
loudness contour of the distortion signal is ordinarily only controlled by the volume envelope
of your instrument. Like the DIST slider, the AR DIST slider also controls the volume of the
sound coming from the Distortion block. The key difference is that the signal sent to the AR
DIST slider gets first further processed through its own separate VCA; this separate VCA is
controlled by the i nverted version o f the (synthesizer) VCA envelope set in the Envelopes
block.
The practical use of this feature comes when using AR DIST and SYNTH together and can
be illustrated by the following example. Set the AR DIST and SYNTH sliders so that the
volumes of their audio signals are roughly the same and set a relatively long attack time on
the VCA envelope. Now when you play a note, you will initially only hear sound from the
Distortion block but this then crossfades into sound from the VCO block (Synthesizer).
Although relatively few of the factory sounds use this feature, this can be used to perfectly
mask any potential tracking errors or latency of the synthesizer sound.
Beware that even when in the (exponential) ADSR envelope modes, the AR DIST is still
controlled by a l inear AR envelope. This means that the crossfading will not happen as
smoothly as it does in Vintage mode.
Note: When the FI is played solely via its MIDI IN port, adjusting the INSTR, DIST and AR
DIST sliders will have no effect. This is because they control audio signals derived from the
input signal of your instrument connected at the INPUT socket.
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