Schematics for equalizer with knobs?

[draupnir]

Hi!
My first post, so I apologize if this is wrong place to post!

I have done some searching on the forum and opened my trial version of Flowstone, but I can't find a schematic for an ordinary Equalizer with 3-4 bands. Is there some example schematics I could download to see how they are build?

However I found a schematic for a parametric eq with a GUI, but I want a simple EQ with traditional knobs first!

Can anybody point me in the right direction? Thanks in advance!

[KG_is_back]

Hello and welcome!

Here, have a look at this schematic. I've made it really quick, so it's not really fancy or anything - just default knobs and RBJ filters.

[draupnir]

Hello and welcome!

Here, have a look at this schematic. I've made it really quick, so it's not really fancy or anything - just default knobs and RBJ filters.

- Thanks a lot KG_is_back! I'll have a look at it and see if I can understand the logic.

Just a short question: I can see that the frequency knobs all go from 20 Hz to 20 kHz. And opening the schematics, I reckon that I can just choose another starting point and ending point. So far so good, but let's say I want to build an EQ with set values, for example 5 different frequency values like 60, 80, 110, 160, 240 and use a vertical slider with these values on the left side. How do I do this? I reckon I can substitute the knob with a slider, but how do I "cut out" some specific frequency points, so to speak?

[martinvicanek]

That would be a graphic EQ, like this?

[draupnir]

That would be a graphic EQ, like this?

Wow, what a helpful community! Thanks for chiming in, martinviacanek!

I probably described my eq-project a little vague. What I meant was having one vertical slider with 5 set values on that slider, i.e. one slider that starts with frequency 60, then 80 etc (60, 80, 110, 160, 240). Actually I have three of those sliders with 5 different values. But if I see how you make one slider, I can probably just copy that one and fill in the other frequencies?

However, very nice addition with that transfer function, showing the frequency visually!

Question: For some reason the export function Schematic > Create VST/VSTi is greyed out. Why is that? (My trial version is still running!). And there is no problem exporting the KNOB_EQ.fsm from KG_is_back as a VST.

[martinvicanek]

Perhaps you want radio buttons for the frequency selection then? You could also take a slider and modify the proprties so it will be quantized to 5 values. Those values will have equal spacing, though. If you want it to snap to other values you could use some mapping.

[draupnir]

Hi again! Yes, radiobuttons is probably a better solution! But the slider solution has partly something to do with that I want a kind of an old school look/feel of the EQ. I reckon I can change the skin of the slider to give it another look?

Can I ask you to show me how this is done (not the gui-thing, I can search this forum for that) but both of your suggestions, or perhaps that's too much to ask for? Being a newbie, it's hard to know how complicated things are, so sorry if this is an inappropriate request!

[martinvicanek]

No problem, check this out. You can change the look, yes. Sometimes, like in the slider case, it is just a matter of replacing a bitmap (and fiddling around to position it properly). In other cases a user control may be based on vector graphics, then you have to find your way through the schematic, although some parameters like color or line thickness may be easily accessible.

[draupnir]

No problem, check this out. You can change the look, yes. Sometimes, like in the slider case, it is just a matter of replacing a bitmap (and fiddling around to position it properly). In other cases a user control may be based on vector graphics, then you have to find your way through the schematic, although some parameters like color or line thickness may be easily accessible.

- Thanks a lot martinvicanek! Now I have the foundation, I think, so I'll have to have a closer look at how these things are put together