Particle Fountain: A monophonic synth which attaches a sound (either a sawtooth or a square wave) to a bunch of particles, which move in a 2d space like a fountain. The particles' position in the space then determines certain aspects of the sound (frequency, amplitude, panning). There can be up to 200 particles in use at any one time.
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This document introduces cesSynth1, a VST2 plugin which models a flexible analogue synthesiser. The synth is a dual oscillator design, incorporating a fourth order resonant low pass filter. The model features:
Polyphonic - up to 32 notes can be played, with a polyphony limiting control
Dual oscillators, with selectable octaves
Three oscillator waveforms (variable pulse, variable saw and triangle), which can be combined to produce complex composite waveforms for each oscillator.
Three modulation sources (LFO, and two complex envelope generators).
Fourth order resonant low pass filter.
The following controls can be modulated - frequency of each oscillator, VCA for each oscillator, VCF cutoff frequency.
A custom GUI
Monophonic, polyphonic and Arpeggio operating modes.
The frequency of each oscillator is based on the fundamental of the note played, and the status of the pitch bend wheel. This base frequency can be modulated by the modulation sources, and Oscillator 2 can also be modified by a constant offset. The modulation sources will be described later. Each oscillator provides three basic waveforms - pulse, saw and triangle. There is a width control for the pulse and saw waveforms which controls the amount of time spent on the first half of the cycle (positive for pulse, and rising for saw).
The width control can therefore vary the saw waveform from a falling saw (0%) through a triangle (50%) to a rising saw (100%). The waveform of each oscillator can be built from a combination of the three basic shapes, with variable amounts of each waveform. The GUI provides visual feedback of the resulting waveform shape.
Having been amplitude modulated, the combined output of the two oscillators is fed to the filter stage. The filter is a 4 pole low pass design, with resonance ...
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MK449 Synth:
MK449 Synth est un snythé FM sous format VST a deux oscillateurs. Son interface est calquée sur celle des claviers maîtres de la gamme évolution du même nom, et sont controlables en midi. Le synthé est dédié au MK449, mais compatible en terme de surface de contrôle avec les MK425 et MK461.
Sensible à la vélocité et à la modulation, il permet de générer des sons avec une polyphonie de 6 voies. Le cablage interne se rapporoche d'un clavier du type Moog, combinant OSC+VCF+VCA avec leurs générateurs d'enveloppe associés.
Deux oscillateurs sont utilisés. L'OSC I peut être configuré respectivement en Sinus, Triangle, Dents de scie, Rectangle ou Bruits (blanc ou coloré). Il est modulé en fréquence par le second oscillateur qui joue le rôle de modulant, dont la fréquence est réglable par coarse ansi que l'influence de modulation. Les mêmes formes d'onde sont disponibles avec l'OSC II.
Le VCF possède deux réglages de base Cut et Res, modulables par un ADSR dont l'influence est paramètrable (O). La fréquence de coupure peut être modulée par un LFO don la force est fixée par la molette de modulation.
Le VCA de sortie est commandé par un ADSR, le volume global étant accessible (Main Vol).
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