3 stage mix module ?

DSP related issues, mathematics, processing and techniques
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Wishx
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3 stage mix module ?

Post by Wishx »

Hi guys I had a wierd idea, wich seems quite hard to acomplish.

I'm talking about a three stage mix module . For starters

What I essentialy mean is for example: in a normal mix module we put a dry and wet and mix between them.

What if we had 3 channel inputs, and want to mix in betwen them like this: Image

I represent the knob in this picture so L1 is min value, M is 0.5 and max 1 is the R.

Can it be done ? Enlighten us, with your experience and Knowledge!

Thanks :D
KG_is_back
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Re: 3 stage mix module ?

Post by KG_is_back »

I am not quite sure what you what to archive. You what 3knobs in one that are ale scaled 0-1?
or do you what the sum of the three to always be 1?
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martinvicanek
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Re: 3 stage mix module ?

Post by martinvicanek »

Check out cyto's continuous blend schematic here:
http://synthmaker.co.uk/forum/viewtopic ... &sk=t&sd=a
Perfect Human Interface
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Re: 3 stage mix module ?

Post by Perfect Human Interface »

This should work.
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tester
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Re: 3 stage mix module ?

Post by tester »

You mean - you are looking for mid-side encoding/decoding plus standard stereo pan?
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Wishx
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Re: 3 stage mix module ?

Post by Wishx »

Hi guys thanks for the prompts reply, I want a mix knob (found in audio tools) that has instead of dry / wet input to utilize as mix, more inputs 3 actualy
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Wishx
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Re: 3 stage mix module ?

Post by Wishx »

Perfect Human Interface wrote:This should work.

THis seems to be it, from some first test... im kinda wowed !? haha :o and all the articles and info are great guys ! thanks so much :D
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Wishx
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Re: 3 stage mix module ?

Post by Wishx »

Yeap thats it, amazing guys... It makes me wonder can this be done with 5 inputs , or 10 :o ?
Perfect Human Interface
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Re: 3 stage mix module ?

Post by Perfect Human Interface »

The one posted above by Cyto apparently uses a more complex method that can use any number of inputs (just from glancing at the thread).

That one I just made isn't complicated even if it looks so. If you study it a bit I'm sure you can make sense of it by following the math. It's just modifying the way the knob value is applied to each of the three input levels. If you can understand how a typical crossfade works (a 0-1 range value multiplies one signal level while the difference, 1 subtract that value, multiplies the other) that should get you started.

And yes, there is a method to create this type of fade that works with N inputs.
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Wishx
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Re: 3 stage mix module ?

Post by Wishx »

Thanks, I'm trying to dive as deep as I can and understand what I come across :)
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