30NOTE: LFO is an abbreviation of Low Frequency Oscillator. Whereas the Virus PowerCore'smain oscillators generate frequencies high enough to be in the audio spectrum, the LFOsgenerate much slower oscillations, which are very useful for modulating any of the parametersin the both the synthesis section and the effects section. There are 3 LFOs in the Virus Power-Core.The mod matrix itself is used to route the outputs of 3 control ‘sources’ to six ‘destination’parameters.There are also 10 pre-defined parameters which can be controlled by velocity (how hard youpress the key on a touch-sensitive keyboard).Added together, this means a total of 29 parameters can be controlled simultaneously by upto 7 modulation sources, which allows for a great deal of movement, interest and expressionwithin a single sound.So hopefully you now have a general overview of the way the Virus PowerCore works, it'stime to look in more detail at how to achieve all this sonic naughtiness…Viewing PagesTo make things easier, the controls of the VirusPowerCore have been organised into seven different pages. To view a particular page, clickon the corresponding name in the upper left of the Indigo pane.> EASYThe Easy Page contains controls for the most commonly edited parameters, i.e. filter cutoff,resonance, amp attack, FX Send etc.> OSCThe Osc Page contains the controls for the oscillators section, including ring mod, FM andnoise. The controls for the mixer section are also located on this page.> FILTERS/ENVThe Filters/Env Page contains the controls for the filter section and both of the envelope gen-erators.indigo powercore manual.book Page 30 Thursday, April 22, 2004 12:23 PM