Xils lab PolyKB II, Руководство пользователя

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7.1.6.1 The Switch Modulation Matrix
This section has five fixed modulation sources, the LFO1, the Noise (or LFO2), the ADSR2, the
VCO2 and Velocity, and different targets for these sources, like the pitch of the Oscillators, the Filter
Cut Off, or the Waveform settings. In this section the assignation use switches, like on the original
PolyKB synthesizer. This kind of Modulation Matrix is called hardwired, as the sources and
destinations are predefined and can’t be changed. This is the original vintage PolyKB matrix, which
in the 80s might have been one of the most powerful ones provided in a hardware synth.
Programming the modulation is very easy: a switch connects a source to a destination, while a knob
sets the level of the source signal, and therefore the amount of modulation applied to the destination.
Important : The switches have three states allowing positive (Green Led On) or negative (Red Led
On) modulation.
When no led is lit, either green or red, no modulation occurs, and the path between the source and
the destination is broken. ( Which is the default state of the switches )
Tip : Modulating the wave parameter of the oscillators is very specific to the PolyKB. A large
amount of modulation can act as a morphing between waveforms (from triangle to pulse). While a
small amount, of modulation is quite close to the standard pulse width modulation if you choose the
Square Waveform, and will give you special results with other waveforms.
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