What are state variable filters?

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unfa
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What are state variable filters?

Post by unfa »

I've stumbled upon them when using ZynAddSubFX.

I tried searching the web many times to find some information about state variable filters, but I failed.

What's the deal?
faraway1nspace
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Re: What are state variable filters?

Post by faraway1nspace »

I'd also like to know about this.
ssj71
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Re: What are state variable filters?

Post by ssj71 »

Basically its a filter that gives you 3 outputs at the same time, a highpass, lowpass and bandpass filter. So in a way you get 3 filters for the processing cost of 1. You can mix or process the 3 outputs in different ways. I haven't used them in zyn so I'm not sure how it exposes them. Rakarrack's mutron and echotron let you blend all the outputs however you want.
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briandc
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Re: What are state variable filters?

Post by briandc »

Hi unfa!
I started a discussion about state variable filters here and got some interesting feedback for you:
http://www.vintagesynth.com/forum/viewt ... =1&t=80315


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