Doepfer A-140 ADSR Envelope Generator

The Doepfer A-140 ADSR Envelope Generator is a standard, 4-stage envelope generator which can be externally triggered by any rectangular signal in your modular system. Thanks to the range switch, you are able to obtain modulation envelope curves lasting from 50msec to several minutes.

€70.80
Availability: In stock
SKU
A-140
Doepfer A-140 ADSR Envelope Generator is available to buy in increments of 1

The Doepfer A-140 ADSR Envelope Generator is a standard, 4-stage envelope generator which can be externally triggered by any rectangular signal in your modular system. Thanks to the range switch, you are able to obtain modulation envelope curves lasting from 50msec to several minutes.


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.

Module A-140 has available a three-position toggle switch to select one of three time ranges. The envelope duration ranges from about 50us (microseconds) up to several minutes. In combination with the Comparator module A-167 a free-running "ADSR-LFO" can be realized. For more detailed information please look at the English user's manual (for printout)

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