Access Virus Rack XL User Manual

Contents

Access Virus Rack XL User Manual Manual pdf 145 page image

ACCESS VIRUS RACK XL OS5 145All abouts InputsPDF VERSION - RESTRICTIONS APPLY ALL ABOUTS INPUTSAUDIO INPUTS AND AUDIO ROUTINGThe Virus is equipped with two inputs for exter-nal signals. You can route these to its soundgenerating components and use them as carrieror modulator signals for the Vocoder.OSC VOL / INPUTWhen one of the two INPUT modes is activated,the OSC VOL parameter rather than the oscilla-tors controls the level of the input signalpatched into the Filter section and of course al-so the gain of the SATURATION stage. In INPUTDynamic mode, the level can increase surpris-ingly swiftly when you play several voices poly-phonically. The reason for this is that, incontrast to when you’re dealing with several os-cillator signals, the voices are correlated be-cause they are receiving an identical inputsignal. In the event that the Virus generates dis-tortion when you’re dealing with this type of sig-nal routing set-up, be sure to back off the inputlevel a tad via the OSC VOL parameter.INPUT LEVEL INDICATORAlternatively, the RATE LEDs of LFO 1 and 2can also serve as level indicators for the left andright external audio inputs. To this end, go tothe CTRL menu, select the menu item SYSTEM,and set the Parameter LED mode to Input.When the parameter is set to Auto, the Virus au-tomatically activates this level indicator modewhen the selected SINGLE program accessesthe external audio inputs. The LEDs will flashrapidly to indicate that the inputs are beingoverloaded.You should dial in a suitable input level on thedevice that is sending the analog signals. Thereason for this is that you want to feed the high-est possible clean signal level to the analog-to-digital converters of the Virus so that they willdeliver the best possible performance. Youshould only turn up INPUT BOOST as a last re-sort because it is located post A/D convertersand boost signals digitally, which of coursedoesn’t affect the level of the converters.Signals within the Virus may also be overloadedand may distort when their levels are too high.Inherently, a virtual analog synthesizer’s reso-nating filters and high level of polyphony lendsignal levels considerable dynamic potential.We could only rule out this type of distortion en-tirely by lowering the fundamental output of thedevice significantly or by limiting specific pa-rameters. However, this type of problem occursonly in a very few, very specific scenarios. Sincethe problem is so context-related, we chose notto lower the device’s output power or limit itsparameters. Instead, we recommend that yousimply lower signal levels (Patch Volume, etc.)to prevent undesirable distortion.To help you keep an eye on signal levels, youcan activate LED mode to visually monitor thelevels and amount of distortion of the two audiooutputs. ABOUT EFFECTSDELAY/REVERB EFFECT SENDThe Effect Send parameter works like a classicaux send knob on a mixer (post-fader), i.e. it ad-justs the level of the global DELAY/REVERB ef-