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VC Slope Serge-Style Function Generator (8 or 10 HP)
The VCSlope is M4TM's take on the classic Serge Universal Slope Generator. It's a fairly close copy of one of Serge Tcherepnin's designs, the voltage-controlled one, with a couple tweaks. Users familiar with the exact version I worked with will notice the lack of exponential/linear switches for the slope curves, the addition of an attenuator normalled to the output jack, and the addition of a "fall" gate that goes high while the signal is falling.
Users not familiar with the exact slope generator which inspired this will be familiar with one or several modules which are slope generators. MakeNoise Maths is the most common, Buchla Rampage is another, and there's many other versions of "USG" or "DUSG" modules out there.
The limited prototype edition includes two “shape” switches that allow you to change the curve type. It is also 2 hp wider.
MANUAL
USAGE NOTES
I'm a much better circuit designer than synthesist, and the potential of this circuit (especially when used in multiples) is vast, vast indeed. My favorite way to play with this circuit is use at least two modules, patch them basically randomly, set one or both to cycle, and let them generate some kind of chaotic series of surprising tones, bleeps, noises, squeaks, thumps. But if you want you can..... Envelope Generator Trigger or gate signal in the top trigger jack Toggle switch set to off Curve and rate knobs for rise and fall set as desired Output from the main output (or attenuator)
Trigger/gate delay Trigger or gate signal in the top trigger jack Toggle switch set to off Rise curve and rate knobs set as desired Output from the main output (or attenuator)
VCO/LFO Toggle switch set to cycle Adjust rise and fall knobs as desired Experiment with plugging a CV into any of the input jacks, see what happens Output from either the bipolar or main output VCF Audio signal in the non-trigger input jack Rise curve and rate knobs set as desired Experiment with a CV into input jacks Output from bipolar output
Envelope follower Audio signal in the non-trigger input jack Toggle set to off, Set rise rate knob all the way counter-clockwise Adjust rise curve rate to about 12 noon, experiment for better results? Adjust fall rate and curve knobs to match how much "release" you want on the envelope Output from main output
Transient extractor Audio signal with transients into the trigger input jack Toggle set to off Output from trigger output jack Using these modules in pairs or more gets crazy complex crazy quick. They will interact in surprising and unpredictable ways, allowing generative patches and all sorts of fun.
The VCSlope is M4TM's take on the classic Serge Universal Slope Generator. It's a fairly close copy of one of Serge Tcherepnin's designs, the voltage-controlled one, with a couple tweaks. Users familiar with the exact version I worked with will notice the lack of exponential/linear switches for the slope curves, the addition of an attenuator normalled to the output jack, and the addition of a "fall" gate that goes high while the signal is falling.
Users not familiar with the exact slope generator which inspired this will be familiar with one or several modules which are slope generators. MakeNoise Maths is the most common, Buchla Rampage is another, and there's many other versions of "USG" or "DUSG" modules out there.
The limited prototype edition includes two “shape” switches that allow you to change the curve type. It is also 2 hp wider.
MANUAL
USAGE NOTES
I'm a much better circuit designer than synthesist, and the potential of this circuit (especially when used in multiples) is vast, vast indeed. My favorite way to play with this circuit is use at least two modules, patch them basically randomly, set one or both to cycle, and let them generate some kind of chaotic series of surprising tones, bleeps, noises, squeaks, thumps. But if you want you can..... Envelope Generator Trigger or gate signal in the top trigger jack Toggle switch set to off Curve and rate knobs for rise and fall set as desired Output from the main output (or attenuator)
Trigger/gate delay Trigger or gate signal in the top trigger jack Toggle switch set to off Rise curve and rate knobs set as desired Output from the main output (or attenuator)
VCO/LFO Toggle switch set to cycle Adjust rise and fall knobs as desired Experiment with plugging a CV into any of the input jacks, see what happens Output from either the bipolar or main output VCF Audio signal in the non-trigger input jack Rise curve and rate knobs set as desired Experiment with a CV into input jacks Output from bipolar output
Envelope follower Audio signal in the non-trigger input jack Toggle set to off, Set rise rate knob all the way counter-clockwise Adjust rise curve rate to about 12 noon, experiment for better results? Adjust fall rate and curve knobs to match how much "release" you want on the envelope Output from main output
Transient extractor Audio signal with transients into the trigger input jack Toggle set to off Output from trigger output jack Using these modules in pairs or more gets crazy complex crazy quick. They will interact in surprising and unpredictable ways, allowing generative patches and all sorts of fun.