{"product_id":"mutated-stages","title":"STAGES","description":"\u003cp id=\"features\"\u003e\u003ca href=\"https:\/\/github.com\/pichenettes\/eurorack\"\u003eGithub - BOM\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eExperienced builders only!!\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003eComplex calibration required\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eCalibration guidelines\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.dropbox.com\/scl\/fi\/r88vw0yu6jrosj0423wuv\/Stages-calibration.zip?rlkey=nwj206epje5iqvsaatmhq90fc\u0026amp;st=mccuhpca\u0026amp;dl=0\"\u003ehere\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eThere is an issue with the silkscreen on this pcb:\u003c\/p\u003e\n\u003cdiv\u003eC48 and R45 need to be swapped (see image) or the outputs with drift erratically for several hundreds of millivolts up and down (which will hinder you from proper calibration).\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eD7 and R73 are also mislabeled, although the orientation of the Diode is printed correctly and if you go by this (and how the other sections are build) you should be fine.\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003ch3 id=\"flexible-inputoutput-layout\"\u003eFlexible input\/output layout\u003c\/h3\u003e\n\u003cp\u003eThe module detects the presence of jacks on its gate inputs to group its segments: whether it is configured as a complex 6-stage envelope, or 6 individual envelopes, or 3+3, 2+4... depends simply on how you patch it. Dummy patch cables might come handy!\u003c\/p\u003e\n\u003cp\u003eWhen used as a multi-segment envelope, a segment activation signal is produced on all secondary outputs - for example to trigger an external event when an ADSR envelope enters its decay, sustain or release stages.\u003c\/p\u003e\n\u003cp\u003eIn case more than 6 segments are required, up to six modules can be chained together thanks to a connector at the back of the module.\u003c\/p\u003e\n\u003ch3 id=\"three-segment-types\"\u003eThree segment types\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRamp\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003esegments go from one voltage to another, in a CV-controlled amount of time, with an adjustable curve (accelerating, uniform, decelerating). They are the building block used for the attack, decay or release segments in envelopes... or for LFOs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHold\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003esegments stay at a constant (but CV-controllable) voltage for a programmable amount of time. They serve as the sustain or hold segments in envelopes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStep\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003esegments glide to a target (CV-controllable) voltage, then stay at this voltage for a certain amount of time until a trigger is received. They are the main ingredient for step sequences, but also for building sequential switches or a sample-and-hold.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 id=\"looping\"\u003eLooping\u003c\/h3\u003e\n\u003cp\u003eA segment, or a group of segments, can loop on itself: if the last segment of the envelope is included in the loop, the loop lasts forever. Otherwise, the loop remains active while the gate is high, then continues past the last segment of the loop. These two behaviors allow the creation of self-looping envelopes (LFOs), or the sustain stage of a good old ADSR envelope!\u003c\/p\u003e\n\u003ch3 id=\"single-segment-processing\"\u003eSingle segment processing\u003c\/h3\u003e\n\u003cp\u003eEven when they aren't part of any group and don't receive any gate or trigger signals, individual segments can perform interesting functions:\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eRamp\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ecan loop on itself and turn into an LFO,\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eHold\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ecan delay a CV and\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eStep\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ecan slew it.\u003c\/p\u003e\n\u003cp\u003eNow patch a trigger signal: the self-looping\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eRamp\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eturns into a tempo-synced LFO, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eHold\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003esegment becomes a pulse generator, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eStep\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003esegment a sample-and-hold.\u003c\/p\u003e\n\u003ch3 id=\"specifications\"\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCV output: from 0V to +8V. A negative CV down to -8V can be generated by a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eHold\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eor\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eStep\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003esegment if this segment is CV modulated.\u003c\/li\u003e\n\u003cli\u003eSegment duration from 1ms to 16s.\u003c\/li\u003e\n\u003cli\u003eAll inputs: 100k impedance, DC to 2kHz.\u003c\/li\u003e\n\u003cli\u003e31.25kHz refresh rate.\u003c\/li\u003e\n\u003cli\u003e16-bit CV capture, 14-bit CV generation with accurate software calibration. Error below 2mV.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eCode (AVR projects): GPL3.0.\u003c\/p\u003e\n\u003cp\u003eCode (STM32F projects): MIT license.\u003c\/p\u003e\n\u003cp\u003eHardware: cc-by-sa-3.0\u003c\/p\u003e\n\u003cp\u003eBy: Emilie Gillet (\u003ca href=\"mailto:emilie.o.gillet@gmail.com\"\u003eemilie.o.gillet@gmail.com\u003c\/a\u003e)\u003c\/p\u003e","brand":"MUTATED","offers":[{"title":"pcb only","offer_id":57194064871688,"sku":"9999940","price":8.99,"currency_code":"GBP","in_stock":true},{"title":"black anodized aluminium panel only","offer_id":57194064904456,"sku":"190901","price":14.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1030\/0902\/6312\/files\/Stages-panel.jpg?v=1776361428","url":"https:\/\/pushermanproductions.com\/products\/mutated-stages","provider":"Pusherman","version":"1.0","type":"link"}