V-Station RM osc 1*2

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V-Station RM osc 1*2

Postby djbrynte on Thu Jan 19, 2012 3:43 pm

I tryed to make RM like the one RunBeerRun made before and it dident even sound close at all.

Basicly how is RM set up.

This is how nix explains it.

Hey man,
I think if multiply one mono signal with another it is real RM.
It's not a beautiful sound really.
Amplitude Modulation(AM) is multiply the amplitude of the modulator with the carrier.
I imagine you obtain this from an envelope follower?
Cheers

So when 2 signal sign togheter it become RM?

So how do i make it as V-station anyoen who knows im planing to make KS rack so its why i need this.
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Re: V-Station RM osc 1*2

Postby trogluddite on Thu Jan 19, 2012 8:35 pm

Yes, Nix is right, RM is just multiplying the two oscillator signals (osc 1 * osc 2, like you say).

But...
On a digital synth, multiplying can make frequencies that are too high - that creates digital distortion (aliasing) that can change the tone in a nasty way.
Maybe the V-station has special code (e.g. oversampling), so that it sounds more like a 'real analogue' ring-mod, without the distortions? - that would explain the different tone. (I guess the V-station sounds a bit more 'smooth' and 'musical' than the multiply?).
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Re: V-Station RM osc 1*2

Postby CoreStyler on Fri Jan 20, 2012 9:18 am

trogluddite wrote:Yes, Nix is right, RM is just multiplying the two oscillator signals (osc 1 * osc 2, like you say).

But...
On a digital synth, multiplying can make frequencies that are too high - that creates digital distortion (aliasing) that can change the tone in a nasty way.
Maybe the V-station has special code (e.g. oversampling), so that it sounds more like a 'real analogue' ring-mod, without the distortions? - that would explain the different tone. (I guess the V-station sounds a bit more 'smooth' and 'musical' than the multiply?).


Maybe is possible to add a clip to the output. so in that way the rm should be smoother.
Could be like that?
Code: Select all
streamin osc1;
streamin osc2;
streamin rm;
streamout out;
float in;

in = osc1 * osc2;
out = min (in, 0.9);
out = max (in, -0.9);
out = in * rm;

knob min 1 max 100
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Re: V-Station RM osc 1*2

Postby trogluddite on Fri Jan 20, 2012 11:44 am

I think the last line should be...
out = out * rm;
Otherwise you have 'bypassed' the min and max.

I'm also not convinced that it would help very much, for two reasons...

1) Oscillators output -1 to +1 - so the result of any multiplication is also contained within -1 to +1.
2) Aliasing is caused by the frequency content of the signal, regardless of the level. The series of frequencies generated by the ring-mod can still extend well beyond the Nyquist limit. Clipping the signal will add more high frequency harmonics to the signal, so in principle would make any aliasing worse.
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Re: V-Station RM osc 1*2

Postby Acrobat on Fri Jan 20, 2012 1:36 pm

trogluddite wrote:Maybe the V-station has special code (e.g. oversampling), so that it sounds more like a 'real analogue' ring-mod, without the distortions? - that would explain the different tone.

Lets try doubling the OSC: take the same freq as the carrier to drive a Sinus OSC, then multiply THIS with the modulator. I bet it will be smoother and less aliasing.
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Re: V-Station RM osc 1*2

Postby CoreStyler on Fri Jan 20, 2012 1:45 pm

Yes i bypassed :D .
I'm not good on coding im just learning ;) .
Is possible to make an oversamplig on sm?.. i tested by multypling the two oscillator freq but it get just an amp.
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Re: V-Station RM osc 1*2

Postby trogluddite on Fri Jan 20, 2012 2:29 pm

Yes, oversampling can be done - Andrew J posted an excellent toolkit for making it (see HERE).
I only understand really basic parts of it - some complex code in there - and be aware, oversampling adds a lot to the CPU use of your plugin!
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Re: V-Station RM osc 1*2

Postby djbrynte on Fri Jan 27, 2012 2:16 pm

basicly how do i set up ring mod trog or anyone? Pls show me with piccs.
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Re: V-Station RM osc 1*2

Postby nix on Fri Jan 27, 2012 9:35 pm

RM.png

Here it is Jo,
Just multiply 2 mono signals.
Cheers 8D
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Re: V-Station RM osc 1*2

Postby CoreStyler on Fri Jan 27, 2012 11:35 pm

Correct. But should be used something that can increase speed of modulation. A LFO
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Re: V-Station RM osc 1*2

Postby djbrynte on Sat Jan 28, 2012 9:28 am

thnx nix but the thing is how do i make so i use a knob. from 0-1. So when knob is at 0 its off.

Can i do the ring mod after the effects aswell?
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Re: V-Station RM osc 1*2

Postby CoreStyler on Sat Jan 28, 2012 10:31 am

djbrynte wrote:thnx nix but the thing is how do i make so i use a knob. from 0-1. So when knob is at 0 its off.

Can i do the ring mod after the effects aswell?

You can use a switcher that trigger off when ring mod knob = 0
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Re: V-Station RM osc 1*2

Postby djbrynte on Sat Jan 28, 2012 4:40 pm

Core helped me with a ring mod. But thing is it doesent sound as v-station ring mod at all. How can i modulate it? Shall i upload the ring mod ?
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Re: V-Station RM osc 1*2

Postby loopeytunes on Sun Jan 29, 2012 12:39 am

Dj all I can say is eff v-station off, get your own sound if you're going to replicate other plugins why would anyone buy it?
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Re: V-Station RM osc 1*2

Postby CoreStyler on Sun Jan 29, 2012 2:14 am

loopeytunes wrote:Dj all I can say is eff v-station off, get your own sound if you're going to replicate other plugins why would anyone buy it?

That is what i think also. For me, a cool synth should sounds good. Does not matter if fit the "standards" of the synthesizers. Many people using synthesizers does not really understand what is infact a ringmod. They don't need to know if does bla bla... they turn the knob, and feel if sounds good. [rember ourself when we started producing.. was not like that?]
Add a modulator, in the way you think and you ear that sounds well. :D
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