Doepfer A-140 ADSR Envelope Generator
NoiseBug Price : $95.00
module a-140 is an envelope generator, and, since it puts out control voltages, counts as one of the modulation devices in a modular system. as soon as the gate input receives sufficient voltage, the adsr generates a variable voltage, changing in time, called an envelope. this varying voltage is output in normal (positive) and inverted form, and can be used, eg., for voltage controlled modulation of a vco, vcf, or vca, or for processing other modules' inputs and outputs.
the shape of the envelope is governed by four parameters: attack, decay, sustain and release.
the envelope is started (triggered) by a gate signal either from the int.gate voltage on the system bus, or, if a signal is put into it, from the gate input socket.
the envelope can also be re-triggered, ie. start from scratch again, each time a trigger signal is sensed at the retrig. input socket, when the gate is still open.
in combination with the comparator module a-167 a free-running "adsr-lfo" can be realized.
related modules are the 4-fold adsr a-143-2, the voltage controlled adsr a-141 and the voltage controlled decay/gate module a-142.
this module has a maximum current draw of 20ma. it requires 8 te/hp worth of space to fit in a eurorack frame.