Building synth with separate voices in Reaktor

[mcraze]

I've asked this on NI forums, but I guess there is no harm in getting more opinions from other places.

So the deal is - I want to build an 8 voice synth with separate oscillators

Just like in analogue synths which had separate oscillators for every voice. The reason is because I want to apply different analogue drift to each voice which isn't possible when feeding all of them into the same oscillator as you can only affect all 8 of them at once, not separately.

So is it possible to send one key press to oscillator 1, the second to osc 2, the third to osc 3 and so on, just like it happens in, say, Juno 106 - and then mix all of them together without volume going through the roof?

Hope my description was more or less understandable and what are the tips, hints etc on doing this if it's possible in Reaktor at all?

[electro]

Sonic Projects OP-X does it with 6 voices and they have a Reaktor Version.

[whyterabbyt]

Just like in analogue synths which had separate oscillators for every voice. The reason is because I want to apply different analogue drift to each voice which isn't possible when feeding all of them into the same oscillator as you can only affect all 8 of them at once, not separately.

I dont understand this. What is it you're talking about 'feeding into the same oscillator' and what is it that you can 'only affect all 8 of them at once, not separately' ?

If your synth has 8-note polyphony, then that'll be notionally composed of 8 parallel 'blocks' of individual 'voice circuits', acting independently per voice. That 'voice circuit' will include oscillators, filters, envelopes etc. What happens in one is independent of what happens in another, so why wouldnt that include 'analogue drift' already?

You really ought to look at the section on Polyphony in the manual (section 9.3 in the current Application Reference)

[mcraze]

@electro:
Actually it doesn't. If you will check what's under the hood of at least its demo you will see that it still has one oscillator for all voices. I think it just alters the pitch of each incoming voice individually using LFO and then mixes all pitches together and outputs to an osc.

What I want is basically

I press key -> the next free voice selected and this signal gets separated from everything else -> it goes through various pitch alterations -> feeds into the P input of an osc -> output then gets mixed with the outputs of remaining 7 modules that do exactly the same things as described above.

The key questions are - how to separate voices and how to mix them back with the same volume levels as if using a single osc.

[hersoot]

Try this: feed your MIDI NotePitch into a "Router 1->M" and feed your MIDI Gate into another "Router 1->M". Use one "Voice Info" module to control the position of the routers.

[mcraze]

If your synth has 8-note polyphony, then that'll be notionally composed of 8 parallel 'blocks' of individual 'voice circuits', acting independently per voice. That 'voice circuit' will include oscillators, filters, envelopes etc. What happens in one is independent of what happens in another, so why wouldnt that include 'analogue drift' already?

Ah but here is this thing. I'm using a macro that uses 'slow random' generator to add small alterations to a pitch before sending it to the input of the oscillator (and they do make sound more lively, while not producing any phaser-like effects). What I want is for each voice to have its own alterations through unique input values for 'slow random'. Basically it's the reason for what I'm asking about.

You really ought to look at the section on Polyphony in the manual (section 9.3 in the current Application Reference)

I'll check it out

[whyterabbyt]

Ah but here is this thing. I'm using a macro that uses 'slow random' generator to add small alterations to a pitch before sending it to the input of the oscillator (and they do make sound more lively, while not producing any phaser-like effects). What I want is for each voice to have its own alterations through unique input values for 'slow random'. Basically it's the reason for what I'm asking about.

i dont understand why that cant that be part of the 'voice circuit' ?

[mcraze]

The problem is that polyphony creates duplicates, that means each voice will have the exactly same values for 'slow random' and I don't want that.

Now that I think about it it actually can be much more simple.

Like is it possible to feed 'slow random' different values with the help of a 'router M-1' and 'voice info' modules depending on which voice is currently active? What I want is each voice having its own unique values for 'slow random'

[hersoot]

Like is it possible to feed 'slow random' different values with the help of a 'router M-1' and 'voice info' modules depending on which voice is currently active? What I want is each voice having its own unique values for 'slow random'

Did you read what I wrote earlier in this post?

[whyterabbyt]

The problem is that polyphony creates duplicates, that means each voice will have the exactly same values for 'slow random' and I don't want that.

Now that I think about it it actually can be much more simple.

Like is it possible to feed 'slow random' different values with the help of a 'router M-1' and 'voice info' modules depending on which voice is currently active? What I want is each voice having its own unique values for 'slow random'

Why not just use the Voice Info as part of the calculation for how you use the slow random value?

[mcraze]

Did you read what I wrote earlier in this post?

Yes. I'm talking about a totally different thing right now.

Why not just use the Voice Info as part of the calculation for how you use the slow random value?

That's what I'm going to try to do

[hersoot]

It sounds like you have little, if any, experience in building with Reaktor. Good luck.

[ZooTooK]

Yes, it's very possible to achieve this. All modules including oscillators and filters can be used polyphonicly including in the aspect of introducing "errors" like drift etc. E.g see my OB-Y in the UL. http://co.native-instruments.com/index. ... tchid=4344