Arturia CS-80V User Manual page 38

PWM Settings
Unlike the original CS-80 LFO where only the sine waveforms were available, the wave
can be set with the «WAVE FORM» selector. The waveforms available are sine, saw-up,
saw-down, square, noise and random.
This LFO can function in three modes chosen on the «LFO MODE» selector: «FREE»,
meaning that all LFOs of each of the polyphonic voices function independently of the
others; «TRIGG», meaning that the LFO restarts at the beginning of its waveform each
time that the polyphonic voice is activated; and finally «MONO», where only the LFO of
the first polyphonic voice is used.
The latter allows us to bring a general effect to all of the voices at the same time, like the
original CS-80.
It is possible to synchronize the LFO speed with the tempo of the host application with
the «MIDI SYNC» button.
The signal from the oscillators then goes through two filters in a series, one high-pass
and one low-pass. The cut-off frequency and the resonance of each of these filters can be
set with the green and red «HPF» and «LPF» faders (above or below the labels).
Setting the filters
By clicking on these labels, it is possible to activate or deactivate a filter in order to save
on calculation power.
The «24dB» button lets us go from a 12dB filter to a 24dB filter. The two low-pass and
high-pass filters are simultaneously modified.
Filter envelope settings
The filters are modulated by an envelope where the «IL» (Initial Level), «AL» (Attack
Level), «A»(Attack), «D»(Decay) and «R»(Release) settings function in the following
manner:
«IL» represents the start of the envelope relative to the frequency of the filter. The filter
frequency will be modulated starting with a frequency inferior to the frequency setting.
The more «IL» is increased, the lower the starting frequency will be.
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ARTURIA – CS-80V – USER'S MANUAL