Controlling synths

Runcell

LR Member
Had a quick play about this morning (didn't get a chance last night) and I did sort of get it working but I need to spend more time trying to perfect it, as it's a bit noisy especially with the synth attack at zero. THiS how I did it - I created an octoRex in place of a real guitar a Thor to convert the audio to cv/gate and a Malstrom to be our new guitar sound.

I plugged Rex (playing a guitar loop) L&R out to Thor audio in 1&2

Then plugged Thor's cv out 1 to Malstrom's seq control GATE - and cv out 2 to Malstrom's seq control CV

Then using Thor's matrix set first source to Audio In1 - amount to 50 - scale to MIDINote and amount to 31. (Some experimentation scope here with MIDINote/LastNote and amount)

With Thor's matrix again set the second Source to AudioIn2 - amount to 50 - Scale was set to LastGate and amount (worked best at) zero !

Now when the Rex plays you should be getting something sounding from the Malstrom.!! Maybe not quite what you expect but it's a quick experiment. And in all honesty, I not too sure it can be done now ! But let's try.. Maybe one of you can take this further and perfect it..

Also try different Malstrom sounds, try different amounts on Thor's matrix.. Lots of scope for experimenting.
 
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Osmose

Reason User +
Mm, im gonna give a go at this as well. Might find something really interessting to work with. Maybe i'll do so this evening
 

Runcell

LR Member
In theory it shouldn't work.. Because cv/gate operates at +/- 5 volts.. And audio at 0dBV (consumer equipment) is 1 volt. But this is a virtual floating point world.

I feel it's possible for a developer to create a unit capable of taking an audio input and converting it to cv/gate info.!
 

Osmose

Reason User +
Ye it would be a nice Re indeed!

But indeed, it should work in theory... I was just thinking, maybe it will work when converting audio to unipolar, but i guess cv works in biploar as well?

I'll give it another go with just some clean oscilator signals like a slow sine wave
 

Runcell

LR Member
But indeed, it should work in theory...

No, sorry Osmose.. In theory it should not work

Because, playing your guitar at 0vu will be equal to 1volt.. Control voltage requires the voltage to be 10volts - for example 1volt = C1 - 2volts = C2 etc..

Therefore the voltage produced in audio electronics (0dBV=1volt) is a tenth of what is required for accurate CV (pitch). That is in the real world but anyway hope that make sense.

- GATE is like trigger note (analogs note on/off).

Edit- The polarity switch will turn a +/- 5volt line (bipolar) into +10volt single line. Both still operate with 10volts.
 
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Osmose

Reason User +
mm, some food for thought then.

My guessing is that its probably emulated in Reason, since they tend to like doing so.
 

Runcell

LR Member
Sorry mate, I'm not trying to be the big 'I am know it all' and I'm not out to prove anyone wrong or blind you with big words.. CV and GATE is something I've had hands on experience with in the real world as well as using it in Reason for quite a while !

Well worth reading up on mate :)
 

Osmose

Reason User +
Aah no worries ;) Im not annoyed by any means! In fact, that what you know, should be shared regardless of how someone percieves the messenger
 
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