Transposing VCOs using multiple sources


#1

This topic was split from Say hello to a brand new website!

Out of curiosity, why do you need the FM input to track 1V/oct when you already have a 1V/oct input?


Say hello to a brand new website!
#2

hey

I use it on my e350 to transpose a sequence. no need to use a precision adder, I’ll just turn the FM knob all the way and feed the FM input with CV, and it does track really well.

I really like to transpose all my melodies with one controller. unfortunately they aren’t a good and useful module who can handle pitch transpose for more than juste one voice. I really wish that someone could design a 2hp utility module who could help me transpose more than one voice. let say something like this:

input 0 : cv signal to add/sum

input 1 : cv signal from sequencer or anything else
input 2 : cv signal from sequencer or anything else
input 3 : cv signal from sequencer or anything else

output 1 : input 0 + input 1
output 2 : input 0 + input 2
output 3 : input 0 + input 3

you could add a pot to offset the input 0, to get octave or semi-tone transpose.

now my patch is as follow :

  • rené goes in the input of 1:3 of Links
  • one of the 1:3 output goes in FM input from e350
  • one of the 1:3 output goes in the 2:2 input section to transpose a sequence which goes into my mangrove
  • one of the 1:3 output goes in V/Oct from Rings

by doing so I can transpose/control 3 voices - included two sequences


#3

Sounds like an interesting concept. Sounds like something more than one person could be interested in. If you want I can ask to see if somebody maybe would be interested in making something like that.


#4

oh yes, I’m most definitely interested, thanks!

I’ve already compiled a list of modules who can handle pitch in this MW thread : https://www.muffwiggler.com/forum/viewtopic.php?t=183324&start=0&postdays=0&postorder=asc&highlight=

but for me, if this could be 2hp and handle more than one voice, it would be awesome.


#5

The tricky part is doing the precision adding, which isn’t that trivial afaik, but it def. doable. having multiple inputs is probably just a matter of adding a buffered multiple circuit to IN 1.


#6

yep

Links is a good exemple. It’s brillant. The 1:3 section is perfect as a precise buffered mult, and the 2:2 is perfect as a unity mixer who is precise enough to act as a precision adder. so Links circuits and composant are the way to go. but I personally couldn’t achieve such a realization.

thanks for splitting the thread, by the way


#7

Never tried to use it add pitch CVs, I should try that!

all in a day’s work for a mutable forums’ mod :slight_smile:


#8

Oops, already answered.


#9

Hey all

Just a message to let you know this project has advanced significantly and that I found a potential builder for such a module, in 2 hp.

If enough people are interested, this could be build.

Just check the thread on MuffWiggler:

https://www.muffwiggler.com/forum/viewtopic.php?p=2609402#2609402