Arturia ARP2600 V, User Manual

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8 ARTURIA – ARP2600 V – USER’S MANUAL
What’s more, the original analog oscillators were unstable. In fact, their waveform varied 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 reproduces the instability of oscillators, bringing a fatter and “bigger” sound.
1.2.3 A better reproduction of analog filters
TAE allows more precise emulation of analog filters than standard digital filters. To obtain this re-
sult, the TAE technology is based on the analysis of the analog circuits to be reproduced, and con-
verts them into algorithms that faithfully mimic the characteristics of the original filters. The curve
underneath shows the comparison of the original ARP2600 filter and that of the ARP2600 V.
Response curve of the 12 dB low-pass filter of the original ARP2600 V and the ARP2600 V
1.2.4 Ring modulator
The ARP2600 V includes a ring modulator, just like the original ARP2600. The ring modulator allows
the application of a waveform (a sinusoid) to another, in order to transform it. The result is a more
brilliant sound, distorted, and enriched in harmonics. As a result of this increase in the number of
harmonics, standard ring modulation algorithms create an audible aliasing. To avoid this unwanted
effect, TAE includes a module for the dynamic control of the amplitude with aliasing correction,
which removes every trace of aliasing in the signal coming from the ring modulator.
Response curve of the 12
dB low-pass filter of the
original ARP2600
Response curve of the 12
dB low-pass filter of the
ARP2600 V
Amplitude control module (VCA)
with aliasing correction
Input
Output
Sine wave
form