Euterpe Synthesizer Laboratories Vertice, Руководство пользователя

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THE COMPONENTS [ 43 ]
• Smooth . It's the common range of use, where you can find sufficient but not stunning-fast settings and
sufficient but not too-slow modulations. Smooth is the middle way setting and often it's the more usable
one. Trust it for normal EG applications.
• Slow . In the Slow position you can find very relaxed behaviors, to make extreme dilated modulations with
or without the Loop activated.
• Percussive . The Percussive position is the “strange one”. We put it there to give you the possibility to achieve
very fast settings, many of which can result too-fast to be normally usable. In this modality the common feature
is not playing the staccato , although it can be done, but looping the EG, eventually reaching the audio range.
Exciting possibilities here, due to the organic instability of the three filters and the not-so-straight looping
behavior of our EG. Also play something with fingers and a looping Percussive setting is very funny sometimes.
Inverted
It's the switchable choice between the common usage direction when a key is pressed, min
to max, and the respective inverse, max to min.
This is an important feature for one reason: with it you can automatically overload the VCA
circuitry. Follow this argument for a while: in the normal mode, not inverted, when the
key is hold down a GATE signal is flowing to the input port of the EG and this forces the EG
to work with related settings. Instead if you switch to Inverted mode the EG will “stop to
run” with the key pressed, having now an opposite behavior to the previous one. But, if
you now release the key – magic! – it will emit a positive CV that will raise up the VCA level.
So try different EG Level settings. It can be very impacting on your resulting audio output,
especially when MIDI to CV lines are involved.
Loop
Switching this control can activate the Loop function. We say “can” because the effective
looping situation is highly dependent on the ADSR and Rate settings. All the four parameters
contribute to modify the looping rate and status, so there are various positions achievable:
• Always active loop
• Trigger or GATE deactivating loop
• Trigger or GATE activating loop
• Trigger or GATE varying loop.
• Deactivated loop by the ADSR controls
Let's follow this example to understand how to tame this circuit.
Extreme Noise Floor Amplification
Here is one of the worst behavior you may have heard from a fully-functional machine (it is almost a
record): in the following situation, when CONTINUO position meets a total cut-offed sound (or a zero
input level) and a total raised up inverted EG level you can notice a very loud unstable rumble noise, an
Inferno of exploding fat frogs. It is normal, although it might not seem. We call it "the Unnatural position".
See page 56 for further details.
Think a second: if you raise up the VCA level so much something just must happen. This is a very high
amplification, far beyond the commonly-required amplification ranges, and the brutal noise you hear is
only the extreme consequence of an excessive setting. We know this "problem" but we don't want to solve
it: VERTICE must be a construction-destruction unit and this circuital "error" certainly make destruction
available. And the fact that it is easily to achieve does not mean that you have to use it in your every song.
This is not the normal way to use it. We put this opportunity to give you a wide range of really analog extreme
sound explorations, wider than what other brands often offer, and we hope you may understand and enjoy
this rumbling noisy choice.
Please set your ADSR in the following position:
The default values to define the ADSR controls gives the organ-like shape, where
Attack = 0
Decay = 0 (in the organ shape the Decay control doesn't really count because of Sustain set to max. But to
follow our argumentation please set it to zero)
Sustain = max
Release = 0