steiner synthasystem triple eg

triple envelope generator

from david ingebretsen, based on the original steiner synthasystem

the euro panel is by clarke robinson and is 28hp wide

the panel/pcb bundle includes the euro panel, 1Xpower pcb, 1XENVDT pcb, and 2XENVDL pcb.

the full kit includes the panel, pcbs, pcb and panel parts, wire, power cable. it is produced using our 'next gen' kitting method-- each component is individually bagged and labelled, and indexed to the BOM

from David: "This module produces a voltage envelope. Three different envelope generators (EG) are included in this module with three separate outputs. Output 3 can be combined with output 1 and/or output 2.

A voltage envelope is most often used to control the amplitude of a voltage controlled amplifier (VCA) which helps to define a sound. Controls typically include an attack time, an intermediate decay time, a sustain level, and a release time. These three EGs include these basic controls, but add extra features which make them even more interesting and useful.

EGs can be used for more than just controlling an envelope. Nyle related a story when he was working on the soundtrack for Apocalypse Now. He wanted to add a low frequency “whap, whap, whap” for the helicopter blades, EG to the rescue…

From the Synthasystem Manual:

This module contains three envelope generators. Envelope generators one and two have controls on attack, trigger duration level, decay and overall output level. The third (bottom) envelope generator has controls on attack, duration time, decay, and output level. Envelope Generator #3 has a switch located near the duration time pot so that the duration time can be controlled with the Duration Time pot irregardless of the trigger duration, or externally Ext. position) by the duration of the input trigger.

All three envelope generators have damp switch. When this switch is in the Damp position, the envelope voltage will go immediately to zero whenever the input trigger is over. See figure #3 part B.

Env Gen #1 and #2 each have a Quathin function switch mark QTN. With the QTN switch down, the decay can start only after the attack reaches its peak level (set by the attack knob) even when the trigger duration is less than the attack time (see figure 3 part C). With the QTN switch up, the decay can start anytime, even before the attack has reached its peak, if the input trigger duration is less than the attack time. That is, the decay starts whenever the trigger ends.

The three trigger input jacks are connected such that all three envelope generators will trigger simultaneously from a trigger fed into the #1 input jack. Each envelope generator can be triggered separately by plugging into the other two trigger input jacks respectively. When a cable is plugged into Envelope #2 input jack, it disconnects the envelope gen input from the #1 jack and accepts a trigger from the cable. Example, with a keyboard trigger plugged into #1 jack and the trigger Gen. plugged into env. #2 input jack, envelope gen #1 and #3 will trigger from the keyboard and Env #2 will trigger from the trigger gen.

Envelope Generators #1 and #2 each have a com switch on their outputs. These switches enable envelope #3 to be combined with envelope #1 or envelope #2 or both. For example,

Only triggers and never audio signals are fed into the envelope generator. The envelope generator’s output voltages can control the gain of the VCA, which in turn will control the amplitude of audio signals. Or, the gen’s output can be used to control any other voltage controlled device such as the oscillators, the filter or the phaser.

  • ? mA +12V
  • ? mA -12V
  • ? mA 5V
  • 80 mm deep
  • Ø 4.00 (1 Votes) Average Rating

Available as an assembled Module and as a DIY project.

No info about availability.

$285 Price in € submitted Nov 11th 2015, 16:48 by Synthcube

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