ArpoVoce

60hp synth voice module

Four voltage controlled Hz\Volt linear oscillators (VCO)
-VCO1 sine wave with sync and FM
-VCO2 sine wave with FM
-VCO3 sine wave with sync and FM
-VCO4 sine-square-sawtooth with LFO option
-VCO CV IN are connected in cascade
-White Noise generator with cutoff
-Four cascadable voltage controlled amplifiers (VCA) controlled by envelope or ring modulated by VCO4
-Tree Attack-Release envelope generators (ENV) with 3 modes of operation (GATE, REPEAT, TRIG)
long\short mode and linear\exponential switch with CV out.
-VCO1 and VCO3 are hard syncable via the SYNC switch.
-VCO2 will do the pitch and VCO1 the harmonic contents, more or less like a resonant filter. (VCO1 pitch = cutoff) The same is possible with VCO3 (cutoff) and VCO4 (pitch) featuring a full two voices synth.
-A two formant voicing is possible by syncing both VCO1 and VCO3 with the same VCO2 making possible,
among others, human voice imitation.
-The FM MOD control can produce FM synthesis as well as vibrato or envelope modulation.
-Each VCA is connected to its own VCO and can be controlled by an envelope or by VCO4
becoming a ring modulator.
-VCA2 and VCA4 can be routed to another VCA output, obtaining a velocity control with ext cv in,
or a double modulation, up to three VCA’s can be chained.
-A white noise can be used for VCA2 input, this can give a further piattino (high hat) sound.
VCA1 have an external audio input.
-Six channels Audio Mixer with individual out for cassa, snare, stereo out with vca1\2 left and vca3\4 right,
mono out.
-Many routing capabilities, five or more sound at the same time, tree voice polyphonic option, spaghetti free.
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https://www.leploop.org/2024/04/20/the-arpovoce-module-prototype/