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36<br />
QUICKSTART MANUAL<br />
If you find you are running out voices too quickly, you could take a closer look at the patches you are using,<br />
and seeing if they can be optimised in any way. The following features should be considered prime suspects<br />
in this situation:<br />
••<br />
Unison Mode (Common Menu)<br />
Unison Mode tells the <strong>Virus</strong> to play multiple instances of the same voice for each key you press, and therefore<br />
should be considered ‘polyphony-killer No.1’! With Unison Mode = Twin, the <strong>Virus</strong> plays two notes for<br />
every key, but since Unison can be set as high as 8 voices per key, you can see why this can be a potential<br />
problem, especially in an arrangement! Often, it can be that reducing the number of voices has little or no<br />
detriment to the sound once it is in a mix, so please try reducing to Twin if it is set to a higher value. You<br />
should be able to compensate for any decrease in volume with either the Patch Volume (Common Menu) or<br />
Part Volume (Multi Menu) parameters.<br />
Unison Mode is a legacy feature from the days of the <strong>Virus</strong> A B and C, none of which featured the HyperSaw<br />
oscillator or the Local Detune parameter available in some of the newer oscillator types. Where appropriate,<br />
using the HyperSaw on one oscillator will yield considerably more voices than a similar patch using 3 separate<br />
saw oscillators.<br />
••<br />
Analog 1-4pole (Filter Menu)<br />
Each voice takes approximately double the calculation power.<br />
••<br />
WavePWM or Grain /Formant Complex (Osc1/2 Menu)<br />
Each voice takes approximately double the calculation power. Only use these oscillators if you are taking<br />
advantage of the F-Shift, F-Spread or Local Detune parameters (OSC1/2 Menus) - especially in the case of<br />
Grain Complex, which sounds exactly the same as the Wavetable oscillator when all these parameters are<br />
set to their default value of +0.<br />
Alternatively, try the Simple variants of Grain and Formant, as these are far less demanding of the DSP.<br />
••<br />
Oscillator 3 (Osc1/2 Menu)<br />
Each voice takes approximately 30% additional calculation power.<br />
••<br />
Reverb<br />
This is the most ‘expensive’ effect, so we strongly advise to avoid using it on more than one or two Parts at<br />
a time. A delay will have far less impact on resources, and may often be just as effective - alternatively, don’t<br />
forget you can use external plug-in effects if you are using Total Integration.
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