Filter Parameters Custom Callback

[Morphoice]

This might be a rudementary question, but even with about an hour googling I cannot find any examples or documentary to answer it

How do I set the Filter's parameters via script?

const var VCF1LowPass = Synth.getAllEffects("VCF1 LowPass");

// VCF1 LowPass Cutoff
inline function onVCF1LowPassCutoffSliderControl(component, value)
{
  VCF1LowPass.setAttribute('Frequency',value);
  
  
}

this doesn't work as there is no setAttribute function, but neither is there a "frequency" one ...

[d.healey]

@Morphoice said in Filter Parameters Custom Callback:

const var VCF1LowPass = Synth.getAllEffects("VCF1 LowPass");

getAllEffects is used for getting multiple effects that contain the same text in their ID, and it returns an array. You need to use getEffect

When you're setting an attribute you need to start with the module . followed by the attribute name, something like - VCF1LowPass.setAttribute(VCF1LowPass.Frequency, value);

[Morphoice]

@d-healey superb, that worked, thank you so much!

[Morphoice]

the resonance seems to throw a weird error though. what am I missing?

[orange]

@Morphoice Are you sure that the Resonance attribute name is correct?
Is this scriptnode?

[d.healey]

@Morphoice When you see a message with undefined parameter 0 it means the parameter you are passing to the function is undefined.

0 means it's the first parameter, 1 would be the second parameter, 2 the third, etc.

So in your case VCF1LowPass.Resonance doesn't exist.

To get a list of all the parameters for a particular module, follow the instructions in the post from earlier today - https://forum.hise.audio/topic/10742/module-browser-gone

[Morphoice]

@d-healey now I feel stupid. It's Q.