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1. the envelope is producing unwanted clicking check that the attack and release are not set to fast settings Clicking can be good though for percussion sounds Gate Off Off Gate State Same settings as above with Hold added for punch Envelope Durations The Hold stage keeps the envelope at full scale for a period which adds presence to the sound in the same way that compression works on audio by clipping the peaks to make the overall sound appear louder Legend has it that the MiniMoog envelope had this attribute resulting from a flaw in the envelope design but which Attack added to its punchyness intentional or not Gate Off Off Gate State pg3 The following examples show the importance of picking the right gate length for the situation The length of the gate plays an important role in how the envelope responds If Gate is short with same setting from Typical example on previous page Envelope Durations Sustain is ignored because decay is longer than the gate time and Release Gate Off Gate State Long gate with fast Decay Envelope Durations Sustain is set to 0 here so no sustain Fast decay goes to OV so release is ignored These can be good settings if only an Attack Decay type envelope is wanted Shorten the gate to only the Attack duration and it will become an Attack Release type envelope Gate Off Gate State Long Attack with short Gate Envelope Durations full sca2. Euro Quad Envelope User Guide Attack Stage Envelope attack control range is 0 0003 20s CV AMT Led indicator Brightness indicates CV amount and colour indicates positive or negative response If GREEN positive voltage CV adds to the stage duration and RED subtracts If the CV voltage is negative the opposite holds true When LED is off the CV Amount is 0 for that stage Delay Stage Sets the delay time duration relative to the start of the gate pulse rising edge 0 10s range The gate must be longer than the delay time or will be ignored Hold Stage Sets the time that the envelope is at maximum peak value between attack and decay stages Has an effect similar to peak compression on audio adding punch or presence to fast envelopes 0 10s range Sustain Sets the sustain value between 0 and 8V Envelope Curve selector Each of the 4 envelopes can have a different shape as indicated by the panel graphics The LED colours are OFF g D M RED A m GREEN GATEL GATE2 GATE3 YELLOW S ate OSO See page 2 for alternate function ENV2 ENV3 Save Button to store all settings before power down See page 2 for alternate function Release Stage Sets the release value between 0 0003 20s pg1 2 ENV1 CV ENV2CV ENV3CV ENV4 CV Decay Stage Envelope decay range 0 0003 20s Edit Selector Switch Selects between the 4 envelopes making them act
3. f the 4 Envelopes can have its own curve setting and the selection is saved when SAVE is initiated The Curve Button has a secondary function ON powering up the module hold the Curve button in for 2 seconds approx and the module will switch to POLY MODE see below If you want to stay in this mode as default then do a SAVE To revert back to Normal Mode do the same button depress on power up and it will switch back to Normal mode Again do a save to make this the default Normal Mode vs Poly Mode In Normal mode each Envelope has independent settings for stage durations CV routings and envelope curves In Poly Mode Channel 1 or Envelope 1 sets the values for all envelopes including stage durations curves and CV Routings The CV input jack on channel 1 applies to all envelopes The gates remain independent for each envelope but all the envelope parameters are set by channel 1 The Poly Mode is for those occasions where the user wants to have the same settings for all the envelopes in case of a polyphonic setup with 4 channels of gates and wants the envelopes to respond in the same way Typically the user will be in Normal mode for standard Monophonic use SAVE A short tap on the SAVE button will store all settings of the Quad Envelope so that when powered off will retain those values The secondary function for this button is as a Factory Reset ON powering up the module depress and hold the SAVE button in for 2 seconds approx and the module will revert t
4. ive to edit CV Modulation Routing Assigns the stage that CV modulation will be applied to Can be any or all stages Works in tandem with the CV AMOUNT control below to set the amount and polarity of the CV routed to each stage Each envelope only has one CV jack so MOD control is used to distribute CVs to each stage independently CV Amount Sets the depth of CV modulation from each CV jack in conjunction with MOD routing control above The CV amount is summed with the stage pots Positive values add to the time duration of the stage while negative values subtract The individual stage Bi Color LEDS show the amount and polarity of the CV Status LEDs Indicate the state of each of the 4 Envelopes CV Inputs Each envelope has 1 CV input which is routed to the stages using MOD selector and depth is set with CV AMOUNT pot Each envelope stage Attack Decay etc can have different CV amount and polarity per envelope Gate Inputs Gate Input for each of the 4 Envelopes Gate range should be 2 5 10V 5V optimum Envelope Outputs Output for each of the 4 Envelopes Output range is 0 8V Button Switch Functions Curve Switch The Curve Switch has 4 options to change the shape of the envelope stages to various combinations of linear exponential and log curves These can be useful for changing the way the sound fades to silence or when creating percussive sounds that need snappy attacks etc Each o
5. le Attack time is longer than the gate so envelope doesn t acheive full scale ON voltage as release is triggered by gate off before it has time to reach it Decay stage is ignored as never Release Gate Off Gate State The following examples show the importance of picking the right gate length for the situation The length of the gate plays an important role in how the envelope responds Short Gate with long Delay Envelope Durations Decay is ignored as never reaches that stage as gate cuts Release off before hand If the Delay time is longer than the gate there will be no envelope at all Attack Gate Off Gate State If Hold is set to longer period than gate Envelope Durations Decay and Sustain are ignored When gate goes low it jumps to release immediately This setup could also introduce clicks with VCAs on mellower sounds This can be a good or bad thing depending on the type of sound desired Gate Off Gate State pgs
6. ndle on how this works as it can get quite complex with all stages having different modulation amounts and polarities Envelope Stage Knobs To maximize functions and save on panel space the Quad Envelope uses a paging style user interface Users familiar with the Modcan Quad LFO will easily grasp the similarities between the two modules The concept is that each of the 4 envelopes share common controls knobs switches which become active for a given envelope by selecting with the ENV EDIT Rotary Switch Selecting the 1 position for example makes all the knobs and switches become active for ENV1 The knobs use a Jump system where the value does not change until the knob is moved and then the value updates to the position of the knob Switching between envelopes during editing can mean that the position of the knobs does not reflect the values for the active envelope but turning the knob will instantly change the value and override the value that was stored in memory Some designers prefer a match system where the value only changes when the knob position is matched to the value stored in memory but found that didn t work well for an envelope with too much time spent hunting for the match position and felt that an edit should be an immediate change pg2 Possible stages for the Envelope Envelope Durations Attack D e cay SO Scateor E Off Gate State A Typical Envelope setup Envelope Durations If
7. o factory settings with all modulation CV Amounts set to 0 and envelope durations set to default values CV Modulation CV Modulation Routing MOD Assigns the stage that CV modulation will be applied to Can be any or all stages simultaneously within one envelope Works in tandem with the CV AMOUNT control that sets the amount and polarity of the CV routed to each stage Each envelope only has one CV jack so MOD control is used to distribute CVs to each stage independently Select the routing destination with the MOD control first i e Attack Decay Sustain etc before adjusting the CV Amount The LEDs mounted next to each Envelope stage knob indicate the amount of modulation by their brightness and colour The brighter the LED the greater the CV amount Green LED indicates a positive amount which will result in a lengthening of the time duration of the stage or in the case of Sustain increase the level while a RED Led indicates a negative amount which will shorten or decrease the stage duration or reduce the Sustain level The amount that the CV adds or subtracts is added together with the stage knob setting so for example if the Attack knob is set to 0 subtracting RED LED will have no effect as Attack is already set to it s minimum value Positive GREEN LED will make the Attack longer though in this example When modulation LEDs are OFF the CV Amount is zero or off for that stage Start with modulating one stage at a time till you get a ha
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