cv input from external sources to ae modular

Hi humpink,

Thanks for sharing this.

Regarding the input wiring, is there a reason to have the signal connected to the ring ('right') of the jack socket? Surely connecting to tip ('left') is more usual? (unless I'm missing something, of course)

I was thinking of making some multiples with attenuated signals to connect external cv to my AE modular and was planning to use an old design from MFOS: musicfromouterspace.com/analogsynth_new/OLDIESBUTGOODIES/VOLTAGEMIXER/voltagedist2.html

...but having it scale-able for the full range within 0-5v would be awesome.

Have you actually built this yet?

Cheers

Great! Sounds very promising - I look forward to hearing more.

Hi, 

still haven't tried it yet because there was other stuff in the way (new job, rearranging the man-cave, building the lego millenium falcon,...) but i finally ordered the missing parts today, so in the next days i will be able to figure out if it works

Hi los, using the master module cv and audio i/o and also the IO module, it is already quite easy to connect the AE to Eurorack or other sources. You can see this in the videos of thetechnobear ( forum.aemodular.com/post/937 ) and I have also connected my AE to my Eurorack in one of my videos ( the5thvolt.com/2019/01/22/patch-challenge-02/ ).

The I/O inputs of the Master module and IO module are protected against over voltages (at least to +-12V) so you should be safe to patch it straight from Eurorack.

as admin said, most of the time I have my AE modular connected to my Eurorack...  sometimes to send CV around, other times just for the audio , so it can go via FX and then on to my mixer.  


its great, the master module has 2 audio I/O and 2 cv I/O , thats often enough... but I really like the 4IO module, as that can do either audio or CV - and thats been enough for me, so far.

generally, this all just works... as long as you dont mind CV clipping to 0..5v,  if you want audio into eurorack, you'll need to consider audio levels though.  (though this is true of passing any instrument at line level into eurorack) 

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the main thing (and this related to OP) I needed to think about were:
- longer patch cables, to go between AE and Eurorack 
- attenuation and amplification of CV, you might want to scale voltages (as per OP)  - I built a fonictronik cascade and befaco AB+C  which will amplify/attenuate/invert and offset CV (and audio) - very useful modules for eurorack, that can be used to ensure AE voltages are scaled to 0..5v where needed.
- amplification of audio, quite  useful to have some kind of 'input module' in eurorack which raises from line level to modular level - that said, I use a Koma Fx field kit (or sometimes field kit), or a VCA (veils) which also have gain on them.
any mixer will allow you to attenuate audio down to AE levels to avoid distortion.


not sure where you are on your eurorack journey, but if this is 'your next level',so your beginning - Id just say mixers, attenuators etc are all things you'll end up needing in your eurorack anyway, so they are not really 'extras' for AE, 
the only thing is when you get them is to bare in mind your AE usage (and so ensure they have gain)