1 of 4 or 1 of 3 switch module ? schematic?

[loss1234]

I am trying to find a good way to rapidly switch (via trigger signal or CV) between 2-4 sources. it doesnt have to be perfect (feedthrough wise) but its been bugging me.

the fewer control inputs the better but maybe all of these work on the principal of one control input for each of the inputs? or are there some that can read in between high or low and switch based on HOW HIGH or HOW LOW?

thanks

[synth_ollie]

some doepfer clones maybe ;


dual vcs

http://www.msc175.de/module/dual_vcs.htm


or the quad sequential switch

http://www.msc175.de/module/quad_seq_switch.htm

[Funky40]

[fluxmonkey]

As usual: Ken Stone. Have a look at the Sequential Switch:
http://www.cgs.synth.net/modules/cgs28_seq_switch.html

Lots of flexability depending on how you set it up. I have 2 input "busses", feeding the opposite sides of 8 spdt-CO switches, each switch then goes to one of the Sequential Switch inputs. I also have the reset selector, so I can dial in 2-8 steps. So at each step, i can select from either one of the two input sources or no input.

In retrospect, I wish I'd included an additional jack for each input, normaled to the switched busses. But sometimes it's good to keep things simple... most modules could have xxx number of added features, and it's not always the right tradeoff to make a swiss armyknife out of everything.

to get switching based on adjustable levels, just feed your control signal to a comparator first, right?

bbob

[loss1234]

ok
i had looked at the sequential switch but i had thought it only allowed one to switch between a or b. i must have read it wrong.

BUT your idea about a comparator, i guess i could use the POLYPHONY article on how to make a window comparator feed an LED..in other words i could take that and modify it so a comparator would have say 4 outs based on level, those could feed the 4 control outs. right?

so the sequential could do 1 of 4? using 4 control outs? or i guess i could just use the comparator plus 4 4016's right? each part of the window comp could go high or low based on if it was being hit by the signal...

and i could probably add a lag somewhere too to have a time delay on the switches...

or does this sound crazy??

thanks all

[fluxmonkey]

maybe i misunderstood the question.

kens circuit has (up to) 8 inputs and a clock input... everytime you apply a pulse to the clock, it selects the signal from the next input and presents it to the output. so if you have 8 sound sources, one into each input, and applied a lfo squarewave to the clock, it would output sound source #1, then #2, then #3 etc. If you put one source into inputs 1, 3, 5, & 7, and a different source into 2 4 6 8, it would essentially toggle between the 2 sources (or you could just have 2 inputs and reset after step 2...).

there are some other control inputs that allow you to change direction or reset. also, your inputs can be audio or CV sources... the most common configuration i've seen is to have 8 pots connected as voltage dividers feeding the 8 inputs, turning it into a sequencer (that's basically the config from Metalbox).

It is not bidirectional... so you couldn't put a signal into the "output", and have it switched so that it appears at one of the 8 "inputs" in sequence. I believe Blacet has something like that, but with 3 inputs?

It also will not jump to a particular step based on the level of an input, if that's what you were looking for.

sorry for my confusion. good luck.

b

[loss1234]

basically if i had a square a sine and a tri and i could switch between the three of them at a fast rate depending on a control signal, i would be happy.

[bearblock]

http://jhaible.heim.at/tonline_stuff/jh_ipscan.html

this might be what you're looking for? except it doesn't suddenly switch between inputs, but does a smooth crossfade instead.

e.g. if the control voltage is 1V then the output is input 1
if the control voltage is 1.5V then the output is 50% input 1 and 50% input 2
if the control voltage is 2V then the output is input 2
etc.

[synth_ollie]

[StephenGiles]

What sources are you actually switching here loss, are they outputs from NE570 modules perhaps, I am totally lost on what you are trying to achieve.

[fluxmonkey]