User`s manual

ARTURIA – HIPHOP PRODUCER – USER’S MANUAL
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instruments that Arturia’s software emulates, and that of the ANALOG FACTORY. They are both
equally deformed by the low-pass and high-pass filtering.
Temporal representation of a “saw tooth” waveform of an hardware synthesizer
Temporal representation of a “saw tooth” waveform reproduced by TAE
What’s more, the hardware analog oscillators were unstable. In fact, their waveform varies slightly
from one period to another. If we add to this the fact that the starting point for each period (in
Trigger mode) can vary with the temperature and other environmental conditions, we find one of
the characteristics that contributed to the typical sound of vintage synthesizers.
TAE
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reproduces the instability of oscillators, bringing a fatter and “bigger” sound.
3.1.3.3. Direct Filter Circuit Modeling
Due to advances in computer processing power, the ANALOG FACTORY 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.
This graph is a frequency domain plot as just a single example of direct circuit modeling in action;
it shows the generation of harmonics at multiples of the resonant frequency when the filter is in
self oscillation mode, for both one of Arturia’s virtual instruments and what it is emulating. These
harmonics are characteristic of hardware synthesizer’s filters and are due to the non-linear
behavior inherent in its analog circuitry. The harmonics generated add to the richness and warmth
of the sound produced by the filter. As a result of the direct recreation of this analog circuitry, the
same characteristics of the sound are present, thus giving the user a truly analog sound.