{"product_id":"doepfer-a-142-2-dual-envelope-controlled-vca","title":"DOEPFER A-142-2 DUAL ENVELOPE CONTROLLED VCA","description":"\u003ctable border=\"0\" cellpadding=\"4\" bgcolor=\"#FFFFFF\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e\n\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eModule A-142-2 contains two envelope controlled VCAs behind a front panel with 8 HP only. \u003c\/span\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eEach of the two sub-units is the combination of a simple AD\/ADSR\/AR envelope generator and a VCA. The type of envelope can be selected by means of a toggle switch:\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eAD: Attack-Decay\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eAR: Attack-Release\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eADSR: Attack-Decay-Sustain-Release with the limitation that Decay Time = Release Time and fixed Sustain level (factory setting 50%)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eEach sub-unit provides these controls and in\/outputs:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eLED control (envelope display)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eAttack (A), manual control\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eDecay\/Release (D\/R), manual control\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eMode switch (AD, AR, ADSR)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eAudio level control (small control without knob)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eCVT Input (CVT = CV Time)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eCV Ducking input\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eAttenuator for CVT (small control without knob)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eGate Input\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eManual Gate (momentary switch)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eAudio Input\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eAudio Output\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e\u003cspan style=\"text-decoration: line-through;\"\u003eEnvelope Output\u003c\/span\u003e  The Envelope Output of version 1 has been cancelled for the benefit of the new CV Duck input. But there is an internal pin header available that has available the envelope signal (0...+10V) and the CV input of the VCA (0...+10V). Ex works the pins are shortened by a jumper but can be used for modifications (envelope output, VCA CV input).\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eBy means of two internal jumpers for each sub-unit one can select which parameter(s) are controlled by the CVT input (e.g. D\/R only or A only or A and D\/R) and in which direction (i.e. if an increasing CVT shortens or stretches the time parameter in question).\u003cbr\u003eTwo more jumpers are used for the optional bus access to the gate signal of the bus for each envelope.\u003cbr\u003eAnother jumper enables the Gate normalling of the two units, i.e. Gate socket of unit 1 is normalled to the Gate socket of unit 2. That way only one Gate signal is used to trigger both units.\u003c\/span\u003e\u003cspan style=\"color: #000000; font-family: Arial; font-size: small;\"\u003e\u003cbr\u003eThe following document shows the positions and functions of the jumpers of the module: \u003ca href=\"http:\/\/www.doepfer.de\/a100_man\/A142_2_jumpers.pdf\"\u003eA142_2_Jumpers.pdf\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eCV Duck is an additional control input for the VCA that can be used to mute the VCA by means of an external control voltage. Beyond about +5V CV Duck the VCA is fully muted, in the range 0...+5V there is only a partial muting. Circuitry-wise the CV Duck signal is amplified by two, inverted and added to the internal envelope signal (0...+10V). The sum of both signals is used to control the VCA.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eThe time range of Attack\/Decay\/Release is about 1ms to 30s (can be modified by changing the value of a capacitor).\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eApplications:\u003cbr\u003e\u003c\/span\u003eVirtually in each patch one or more envelope\/VCA combos together with a sound source are very useful, mainly for percussive sounds.\u003cbr\u003eVoltage control of the times and the ducking animates each performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003e\u003chr noshade size=\"1\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\" align=\"left\" valign=\"top\" height=\"16\"\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eBreite\/Width: 8 TE \/ 8 HP \/ 40.3 mm\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: #000000; font-family: Arial; font-size: small;\"\u003eTiefe\/Depth: 45 mm (gemessen ab der Rückseite der Frontplatte \/ measured from the rear side of the front panel)\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eStrombedarf\/Current: +60 mA (+12V) \/ -60 mA (-12V)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"DOEPFER","offers":[{"title":"Default Title","offer_id":41347342336173,"sku":"doepfer_a-142-2","price":190.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0606\/3449\/7197\/products\/a-142-2.gif?v=1645049465","url":"https:\/\/www.detroitmodular.live\/products\/doepfer-a-142-2-dual-envelope-controlled-vca","provider":"Detroit Modular","version":"1.0","type":"link"}