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TAE® - True Analog Emulation - is a new technology dedicated to the digital reproduction of analog circuits used in vintage synthesizers.

When implemented in software code, TAE® algorithms guarantee the respect of hardware specifications. This is why your CS-80V2 offers an unparalleled quality of sound.

In detail, TAE® regroups four major advances in the domain of synthesis:

Aliasing-free oscillators

Standard digital synthesizers produce aliasing in high frequencies, and also when using Pulse Width Modulation or FM.

TAE® allows the production of totally aliasing-free oscillators in all contexts (PWM, FM, etc.), and at no CPU extra cost.

A better reproduction of analog oscillator waveforms

The waveforms produced by the oscillators in analog synthesizers are marked by the presence of a condenser in the circuits. The discharge of the condenser results in a light bend in the original waveform (notably for sawtooth, triangular and square waveforms). TAE® allows the reproduction of this condenser discharge. Underneath is the analysis of a waveform from the original CS-80 original, and that of the CS-80V2. They are both equally deformed by the CS-80 low-pass and high—pass filtering.

What’s more, the original analog oscillators were unstable. In fact, their waveform lightly varied 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 participated in the typical sound of vintage synthesizers.

TAE® reproduces the instability of oscillators, bringing a “fatter” and “bigger” sound.

A better reproduction of analog filters

TAE® allows the more precise emulation of analog filters over standard digital filters. To obtain this result, the TAE® technology is based on the analysis of the analog circuits to be reproduced, and converts them in algorithms that faithfully mimic the characteristics of the original filters. These curves show the comparison of the original CS-80 filter and that of the CS-80V2.

Ring modulator

The CS-80V2 includes a ring modulator, just like the original CS-80. The ring modulator allows the application of a waveform (a sine wave) 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.

2011-09-28, 08:07:25
Category: Virtual Instruments | Added by: BLJAK_
Views: 911 | Downloads: 32 | Comments: 2
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