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Post by Synths&Things on Nov 27, 2018 16:42:17 GMT
So I was trying to wrap my head around the multi i/o, but somehow it doesn't seem to respond as predicted. When I put an input cv to the top of the multi, it doesn't seem to "copy" to the bottom 3. It does seem to work on the one under the cv input which I put in the cv in jumperwire. As a visual explanation: MULT cv input | copy of cv input | ? | ? |
Again, I thought the cv input would be copied to all of them to create extra cv inputs. Am I doing something wrong or am I misunderstanding the MULT i/o? Thanks for clarifying! K. PS: the table/cells don't seem to respond correctly.
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Post by robertlanger on Nov 27, 2018 17:01:40 GMT
Hi, the 4 I/O is meant as adapter between 3.5 minijack and the AE patch sockets / -wires. If you use 3.5 mono cables, the signal is connected 1:1, e.g. I/O1 minijack is connected to I/O1 on the socket etc. If you use a stereo minijack cable plugged into I/O1, the two channels are connected to the AE sockets I/O1 and I/O2; same with a stereo minijack cable in I/O3, the two channels are connected to I/O3 and 4 on the AE sockets. In no case any signal is copied/duplicated; this you can accomplish by the MULT connectors found on many modules; here, 4 sockets are simply interconnected (without any relation to the module where they are on) and can be used to split a signal. Depending on which type of signal runs through the connections (audio or CV) the switch should be set accordingly. I hope this makes it clear; otherwise let me know!
What do you mean with "the table/cells don't seem to respond correctly"? Which module are you talking about?
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Post by Synths&Things on Nov 27, 2018 17:51:09 GMT
I'm sorry for not being clear, but i actually mean this. I thought it would be something like having a multi(ple) purpose, but i can't seem to find any manual or whatsoever what it is ment for.
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Post by thetechnobear on Nov 28, 2018 14:19:03 GMT
It’s a passive multiple. Normal use case is : feed one output into it, and take up to 3 signals from it. Doesn’t matter which socket you use all are the same. Works with audio and cv.
Sounds Ike that’s what you expected, in which case perhaps try a multi on another module, or other wires, perhaps some oddity is at play.
( as a passive multiple you might find that pitch cv drops a bit , usually you can retune your oscillator to compensate a bit)
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Post by Synths&Things on Nov 28, 2018 15:15:04 GMT
That's what i thought, but somehow it didn't reacted as expected. I inserted the CV of a oscillator in the top one and wanted to insert multiple lfo's in the bottom 3 to modulate. Somehow only 1 lfo output modulated the CV but the others didn't :/.
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Post by NightMachines on Nov 28, 2018 16:37:48 GMT
That's what i thought, but somehow it didn't reacted as expected. I inserted the CV of a oscillator in the top one and wanted to insert multiple lfo's in the bottom 3 to modulate. Somehow only 1 lfo output modulated the CV but the others didn't :/. So you want to use it as a mixer? Feeding three LFOs into one VCO CV? That won’t work. You need to use an actual mixer for that.
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Post by thetechnobear on Nov 28, 2018 16:41:28 GMT
That's what i thought, but somehow it didn't reacted as expected. I inserted the CV of a oscillator in the top one and wanted to insert multiple lfo's in the bottom 3 to modulate. Somehow only 1 lfo output modulated the CV but the others didn't :/. thats the opposite of what I described what your describing here is multiple output (lfo) into 1 input , and your expecting them to sum (I guess) - this is not how multiples usually work. (but not in your original post ) a typical example of a multi use is 1 gate signal (out) (say from sequencer) to 3 different envelope (in) (again as i said in last post, which header you put each into is irrelevant) that said, Ive seen that AE does seem to mix/sum if you put multiple outputs into it... though Ive not explored exactly when this works, and when it does not. 'traditionally' to do what you ask for (multiple outputs (lfos) mixed to one target (cv oscillator) ) , you would use a mixer, so either the Mixer 4-4, 4ATT/MIX ... these also have the advantage that you can scale the amount of CV each input has (unless your using Mixer4-4 B output)
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Post by Synths&Things on Nov 28, 2018 21:22:25 GMT
OMG, I feel so silly. It just copies the outputs, right? But it doesn't work the other way around? So let's say you put in an input of a source and it gets "copied" 4 times like I thought it would?
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Post by thetechnobear on Nov 29, 2018 16:43:05 GMT
OMG, I feel so silly. It just copies the outputs, right? But it doesn't work the other way around? So let's say you put in an input of a source and it gets "copied" 4 times like I thought it would? lets avoid input/output as works as it depends which way you look at it ok, the first thing to be aware of is the multiple is completely passive - it just connects the wires all together - this is why i said it irrelevant which wire goes into which pin header. (you can test this for yourself, if you just touch N wires together you will get exactly the same results as plugging into a multiple) lets look at examples the normal case....
here we have one lfo, thats driving the cv on 3 different oscillators. this is the normal case, as this is what passive multiples do in Eurorack and it makes sense it 'fans' out the signal which is very useful (e.g. imagine the incoming signal being a midi pitch signal which you might want to use all over your patch)
then the 'inverse case' which is multiple signals coming in, and being 'summed' so one output
ok, in Eurorack this is not possible as it breaks rule # 1 do not connect outputs to outputs ! only inputs to outputs. to do this in Eurorack you would use a mixer (and yes you can mix CV and audio , thats fine) In AEM generally you can do this, and it appear to sum the outputs, and in fact this exact case works for me... if you play with the knobs on the LFOS and 2OSC_2 you can hear the effect. but its not very controllable as you cannot affect the levels , its all or nothing so a mixer is better (or using a VCA if you want to get a different relationship) also Id assume that with this summing, its very likely to clip, e.g. if you have a slow square wave and its high at 5v , i suspect it doesn't matter what the other outputs do they can only add to the voltage not reduce it. (in practice most signal are not at full 5v , so you still get some movement, but you get the idea) anyway, really the best way to understand all this is just try it out for yourself, modular synthesis is all about exploring , rather than rules - and AE is robust enough, you know your not going to break anything
btw: admin perhaps this topic can be renamed to mutiples (to avoid confusion with the master IO module) ?
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Post by Synths&Things on Dec 21, 2018 11:47:32 GMT
Thanks for the elaboration! I know it's about exploring, but it is nice to grasp the concept to actually explore the boundaries and push them further. Without any idea of the concept, you'll simply surprise yourself without understanding.
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