Looking for some discussion/inspiration for using EOR/EOF (in general mostly...but I have Quadrax/QX Expander). What sorts of things does everyone use EOR/EOF for in your modular music making?
JB
Quadrature!
The End-Of-Rise gives you a trigger when the terminal value of an EG's rise is hit. So, let's set the four rise/fall parameters to something that approximates a triangle wave from an LFO. Next, connect the EOR on #1 to the Trig input on EG #2, and so on until the #4 EOR loops back to #1's Trig input. With this, each EG outputs a waveform that's delayed by the previous EG's arrival at the EOR point, which results in a 90-degree "phase" shift between each EG's output. And once you've triggered this system once, it'll keep doing that until hell freezes over!
Why? OK...consider this one: take your quadrature outs and mix the 0 and 90 degree together, then do the same for the 180 and 270 degree EGs. Send the resultant mixed outputs to a pair of, oh...let's say Intellijel Polarises...control inputs. Now you have a pretty bizarre bit of stereo phasing going on, almost acting like an autopan but no autopan could sound THIS nuts! Note that you have to use the 90-degree angles here; combining 0 and 180, etc. will just result in phase cancellation.
As for EOF, it's super-useful for chaining EGs to create a complex composite modulation signal. One ends, starts the next, etc. Then just send the result through a DC-coupled mixer and you get super-varied LFO behavior. Or you can use the EOF in some generative functions to fire off the "next" set of parameters, and as long as there's a feedback loop (not acoustical feedback, mind you) that can keep right on going, and other modules can then modify the individual EG parameters depending on which EOF has sent a trigger. You could actually wring two signal paths of this sort out of a single Quadrax/Qx!
Right now, I'd say that the Quadrax/Qx combo is one of the best module sets in this regard, but the newer Tiptop/Buchla 281t also can do this...as it's got built-in quadrature outputs for the A+B and C+D outs.
Quadrature!
Why? OK...consider this one: take your quadrature outs and mix the 0 and 90 degree together, then do the same for the 180 and 270 degree EGs. Send the resultant mixed outputs to a pair of, oh...let's say Intellijel Polarises...control inputs.
When you say 'mix the resultant outputs' of Quadrature, do you mean use something like Links to do that 'mixing'?...
As for EOF, it's super-useful for chaining EGs to create a complex composite modulation signal. One ends, starts the next, etc. Then just send the result through a DC-coupled mixer and you get super-varied LFO behavior. Or you can use the EOF in some generative functions to fire off the "next" set of parameters, and as long as there's a feedback loop (not acoustical feedback, mind you) that can keep right on going, and other modules can then modify the individual EG parameters depending on which EOF has sent a trigger. You could actually wring two signal paths of this sort out of a single Quadrax/Qx!
Right now, I'd say that the Quadrax/Qx combo is one of the best module sets in this regard, but the newer Tiptop/Buchla 281t also can do this...as it's got built-in quadrature outputs for the A+B and C+D outs.
-- Lugia
Cool, I have lots of modulation in my racks (Maths, Quadrax/QX, Quadrature, Stages, CVilization) and want to learn more about using them for different things...thank you! appreciate this feedback
JB
Why? OK...consider this one: take your quadrature outs and mix the 0 and 90 degree together, then do the same for the 180 and 270 degree EGs. Send the resultant mixed outputs to a pair of, oh...let's say Intellijel Polarises...control inputs.
When you say 'mix the resultant outputs' of Quadrature, do you mean use something like Links to do that 'mixing'?...
-- jb61264
That's one possibility. Better still would be to use a variable-level mixer instead of Links so that you can fine-tune the feel. Or if you're working with a quad VCA (Veils, et al), just send each EG output to a separate VCA control input but only have a single audio input to the four VCAs. Futz around properly, and that'll get you into a whole weird territory that's normally occupied by the ARP 2500's Mixsequencer.
Loads of abuse potential in/with quadrature!
