Access virus os4 Manuale Utente

ACCESS VIRUS OS4

The MIXER Section

featuring a frequency within the 
range of human hearing. This sig-
nal is not actually audible as a 
vibrato effect. Instead, you’ll hear a 
sound modulation, in some cases, 
a very drastic one at that. Choose 
the pure sine waveshape for Oscil-
lator 2. In conjunction with the 
sine wave, the frequency modula-
tion generates very clear, in some 
cases bell-like, spectra.

In the Virus you have the option of 
combining the two functions 
called oscillator synchronization 
(SYNC) and frequency modulation 
(FM AMOUNT, to generate new 
harmonic spectra. Switch SYNC on 
and experiment with the FM 
AMOUNT. Also try out different 
SEMITONE settings and the diverse 
waveshapes of Oscillator.

The Virus is equipped with a third 
master oscillator that lets you cre-
ate further oscillations and spec-
tra. You can access the parameters 
of this oscillator, which are 
described in a later chapter, via the 
OSCILLATOR

 EDIT menu.

You have already come across two 
parameters of the MIXER section: 
OSC BAL

 determines the mix ratio 

between Oscillators 1 and 2; in the 
left half of its control range, OSC 
VOL

 determines the master vol-

ume of the oscillator mix. In the 
right half of the control range from 
the center position to the far right, 
OSC VOL

 increases the saturation 

intensity when a SATURATION 
curve has been activated. 

Now we’ll take a closer look at the 
final control element, the SUB OSC 
pot: It controls the volume of the 
fourth oscillator, the so-called 
SubOscillator, which always oper-
ates an octave below Oscillator 1. 

The SubOscillator is mixed to the 
Oscillator 1 and 2 master mix signal 
as determined by the OSC BAL pot. 
The master volume of the compos-
ite mix is controlled by the OSC VOL 
pot. The only other parameter 
available for the SubOscillator is 
accessible via the OSCILLATOR EDIT 
menu where you have the option