GUI for the Parametric EQ

Christoph Hart

I might add this as floating tile so you can connect it to your curve EQ, but drawing this with pure scripting (like the Dynamics widget) is a bit difficult because you have to calculate the filter response from the coefficients which is about 18x as complicated as the Dynamics code.

Dan Korneff

@christoph-hart Has there been any update to this? Or documentation on skinning the Parametriq EQ? Would love to add these controls to my GUI.

Christoph Hart

This is on my roadmap for quite some time now. Unfortunately drawing a frequency response is not as easy as the dynamic meter (lot's of math wizardry with complex numbers involved), but I think about adding the curve eq plot as a floating tile.

orange

it would be great, with a color, line shape (thickness, fill color...etc) customisation....

Dan Korneff

@christoph-hart Is there a simpler, fix band type eq that could be implemented more easily?

Dan Korneff

Or maybe a doc on Script FX? Is it possible to throw in an open source EQ script into that slot?

Dan Korneff

@Christoph-Hart I just realized that control over the EQ parameter knobs IS functional. Very exciting!
If you have 2 different EQ points set in the parametric EQ, how can you differentiate the knob controls between each node? By default, they control node 0.

Christoph Hart

Just multiply it with the band index :)

inline function onBand2GainControl(component, value)
{
    // Use the BandOffset as multiplier to get the correct attribute index
    local index = 1 * ParametriqEQ.BandOffset + ParametriqEQ.Gain;
    ParametriqEQ.setAttribute(index, value);
};

Example patch:

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Dan Korneff

@christoph-hart

Dan Korneff

@christoph-hart is there a way to see the code associated with the WYSIWYG editor?

Christoph Hart

Not sure what you mean with " code associated with the WYSIWYG editor?"

Anyways, I have added a floating tile that shows the filter graph. It can be connected to either a parametriq EQ or to (mono / poly) filter effects:

It's just read only so you can't drag the curves, but this shouldn't be too much of a restriction...

occultsamples

@christoph-hart said in GUI for the Parametric EQ:

Not sure what you mean with " code associated with the WYSIWYG editor?"

Anyways, I have added a floating tile that shows the filter graph. It can be connected to either a parametriq EQ or to (mono / poly) filter effects:

It's just read only so you can't drag the curves, but this shouldn't be too much of a restriction...

hi im new to hise

can you expaln how to do the floating tile as the filter graph (i got the knobs connetected to a parametriq eq & got the floating tile connetected to the FilterDisplay but nothing is displayed in the floating tile.)

thanks

Christoph Hart

Hi there,

Add a floating tile
Set the ContentType property to FilterDisplay
Set the ProcessorId parameter to the name of the Parametric EQ module (by default Parametriq EQ) that you want to connect and press F5.

occultsamples

@christoph-hart Thanks

Tod Slaughter

Can someone save me some time with trial and error? Is this supposed to go like this for the Frequency and Q parameters?

local index = 0 * ParametriqEQ.BandOffset + ParametriqEQ.Gain;
local index = 1 * ParametriqEQ.BandOffset + ParametriqEQ.Frequency;
local index = 2 * ParametriqEQ.BandOffset + ParametriqEQ.Q;

Dan Korneff

This post is deleted!

Dan Korneff

@dustbro said in Stereo Effect Project. Example?:

@duno I was wondering the same thing, so I decided to do a little test.
By using the Console.print() command, I was able to see that ParametriqEQ.BandOffset is an Integer that is equal to 5. By doing the same with ParametriqEQ.Gain, I saw that was equal to 0.
These are Index numbers that dictate which control you are scripting.
Looking at the Module browser, I can see that each EQ has 6 Index points for each EQ node:

The first 5 appear to be controls, and the BandOffset is just an index used to multiply.
At EQ Node 0, the index is:
0 - Gain
1 - Freq
2 - Q
3 - Enabled
4 - Type
So what happens when you have another EQ node in the effect? The index list starts over at 5.
5 - Gain
6- Freq
7 - Q
8 - Enabled
9 - Type
And then the next node would start at 10.
So what does it all mean?? lets do some math.
{
    local index = 1 * ParametriqEQ.BandOffset + ParametriqEQ.Gain;
	ParametriqEQ.setAttribute(index, value);
};
In the script above we're creating a local variable called index. This is used to gather an integer that is directly related to a specific index on the EQ.
If we convert them to numbers, the equation looks like this:
1 * BandOffset + Gain
or
1 * 5 + 0 = 5
5 is now passed to the line of code below:
ParametriqEQ.setAttribute(index, value);
Which is the same as if we typed:
ParametriqEQ.setAttribute(5, value);
Looking at the chart above, we can see that Index 5 is the Gain of 2nd EQ node.

Tod Slaughter

@dustbro nice one man! That should help me lots!

Christoph Hart

The formula is pretty simple: You take the band index that you want (starting with zero!), multiply it with ParametriqEQ.BandOffset and then just add the parameter enum you want to control.

So:

Frequency of the 14th band: 13 * Eq.BandOffset + Eq.Frequency

Q of the 12049th band: 12048 * Eq.BandOffset + Eq.Q...

Tod Slaughter

@Christoph-Hart Thanks Christoph

GUI for the Parametric EQ

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