ARTURIA – CS-80 V – USER MANUAL
12
1.3.3
Direct Filter Circuit Modeling
Due to advances in computer processing power, TAE® can now employ direct filter
modeling techniques to achieve unprecedented accuracy in the emulation of a
hardware synthesizer’s filter. By modeling the operation of the individual hardware
components of the filter circuit, the warm nuances synonymous with analog sounds
are recreated.
The following graph shows a single example of direct circuit modeling in action.
The peaks represent the generation of harmonics at multiples of the resonant
frequency when a particular filter is in self oscillation mode. These harmonics are
characteristic of hardware synthesizer filters and are due to the non-linear behavior
inherent to their analog circuitry. Anomalies such as these add to the richness and
warmth of the sound produced by the filter.
But you’ll notice there are two lines on the graph: Those are the superimposed
frequency domain plots for both one of Arturia's virtual instruments and the
hardware filter being emulated. They are practically indistinguishable, both on the
graph and to the human ear. The direct recreation of this analog circuitry causes
the same characteristics of the sound to be present, thus giving the user a truly
analog sound.
Comparison of harmonics generated by the filter circuits in self-oscillation
of TAE
®
and a hardware synthesizer
So here’s the bottom line: when you bring together a bunch of music lovers who
also have a deep understanding of the characteristics of electronic circuits, you
wind up with Arturia. And Arturia now offers you our most impressive software model
yet, the CS-80 V.
