Segment Control Knobs Range from 50% and up
From 50% and up, the segments set envelopes in the range of a second and up to minutes,
and infinity with the release set to maximum.
Attack Curve Switch
The attack curve switch (ATK) switches the attack segment slope from exponential to
logarithmic. This has a subtle effect and can be heard best with envelopes having long attack
segments. Below are two scope shots of the same envelope with the switch set in the two
modes:
Voltage Controlled Segments
Each of the four segments in the Z4000 are voltage controlled. The effective
voltage input range for each input is 0 to 5V. Higher voltage levels or negative
levels will not damage the Z4000. For example, the Z8000 Matrix Sequencer has
a voltage range of 0 to 10V so the effective range for the Z8000 to control the
Z4000 segments is up to 50% of the knob rotation. Please note that the incoming
CV is summed up with the internal voltage provided by the segment control knob,
i.e. if your Decay knob is set all the way to max, a CV in will do nothing as it
has no headroom left.
The CV inputs are what makes the envelope live, use them.
Attenuverter and Deviater Explained
The Attenuverter is a voltage attenuating and inverter; this means that in the 50% position, the
Z4000 will output no signal, turning the knob clockwise the envelope will become a positive
voltage and counter-clockwise will turn it into a negative voltage. The LED will indicate those
states with either an unlit, red, or yellow state, respectfully.
In addition, the envelope signal passes through yet another cv processor circuit called the
Deviater. What this does is add a static voltage to the signal, this is a mathematical analog
function of summing. The static voltage can be set to negative (counter-clockwise) or positive
(clockwise). So when summing the static voltage with the envelope voltage, a lot of interesting
things can happen such as offsetting, mirroring and clipping. But voltage manipulation doesn't
end there, the Deviater includes a VC input allowing you to inject even more static signals or
dynamic signals into the analog “calculator”. Go wild with the Deviater—plug in audio or
another envelope.
http://tiptopaudio.com/z4000-ns/
Содержание Z4000
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