{"product_id":"doepfer-a-142-3-envelope-lfo-controlled-vca","title":"Doepfer A-142-3 VCA contrôlé par enveloppe\/LFO","description":"\u003cp\u003e\u003cspan\u003eDoepfer A-142-3 Envelope\/LFO Controlled VCA\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe Doepfer A-142-3 combines an AD\/AR envelope generator, looping LFO, and linear audio VCA in a compact 4 HP Eurorack module, providing a complete modulation and amplitude-control signal path from a single module.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe envelope generator features dedicated Attack and Decay\/Release controls and switchable AD or AR behavior. Its exponential curves are derived from capacitor charge and discharge characteristics, making it particularly suitable for musical amplitude envelopes and percussive sound shaping.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen operating in AD mode, the generator can be switched into LFO operation for continuous modulation. The LFO also uses exponential rise and fall curves and produces a unipolar signal ranging approximately from 0 to +10V.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTwo timing ranges can be selected internally. The standard range provides Attack and Decay\/Release times of approximately 4 ms to 7 seconds, while the fast range covers approximately 0.1 ms to 150 ms. The resulting LFO frequency range extends from cycles as slow as approximately 20 seconds to frequencies reaching the audio range.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe integrated CEM3381 VCA provides linear voltage control and is optimized for audio signals. Because the VCA is AC-coupled, it is not intended for processing control voltages.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe envelope output is internally attenuated from approximately 0–10V to 0–5V before being normalized to the VCA CV input. This allows immediate envelope-controlled amplitude shaping while preserving the option to override the normalization with an external control voltage.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eEnvelope generator, LFO, and VCA in one module\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAD envelope mode\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAR envelope mode\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLooping LFO operation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eExponential envelope curves\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDedicated Attack control\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDedicated Decay\/Release control\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTwo selectable timing ranges\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eApproximately 4 ms to 7 sec standard envelope range\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eApproximately 0.1 ms to 150 ms fast range\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLFO operation from very slow cycles to audio-rate frequencies\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEnvelope\/LFO output approximately 0 to +10V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIntegrated CEM3381 VCA\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLinear VCA control characteristic\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAudio-only AC-coupled VCA\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEnvelope internally normalized to VCA\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eExternal VCA CV input\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eApproximately 0 to +5V VCA CV range\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eManual Gate button\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eGate input\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLED signal indication\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e4 HP wide\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e45 mm deep\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePower consumption: +20 mA \/ -20 mA \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Doepfer","offers":[{"title":"Default Title","offer_id":46690582397117,"sku":"1061607","price":161.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0526\/4175\/9421\/files\/Designsanstitre_10.png?v=1790694645","url":"https:\/\/moogaudio.com\/fr\/products\/doepfer-a-142-3-envelope-lfo-controlled-vca","provider":"Moog Audio","version":"1.0","type":"link"}