ReaEQ: Parallel mode for Bandpass

[Skaven252]

Would be handy every once in a while if you want to band-pass multiple bands from the same signal. Having a parallel mode available for the bandpass would allow you to have the bands in the same EQ without them filtering each other out.

Useful for, for instance, creating quirky filter automation, such as a vowel filter.

[pepe44]

Maybe parallel is not the word your´re looking for here! Parallel processing means you have the same signal on a different track ( bus for example) to process and combine with the original one.
From what i understood , your request is in the same ReaEQ set all bands to band pass and move them together, changing the frequency , right ? If so you could to that in a couple ways, automation lanes for each frequency and automate equally the frequency or you can use a script for that. I know there is a script in reapack (cant remember who´s the author) that you can change value of the same parameter of the same plugin across multiple tracks that have that plugin inserted. Maybe there is one to a single plugin and for multi parameters.

[Skaven252]

Originally Posted by pepe44

Parallel processing means you have the same signal on a different track ( bus for example) to process and combine with the original one.

That's exactly what I'm looking for. If you have, for example, a 200 Hz band pass and 800 Hz band pass with narrow bandwidth set up serially (one after the other), no signal gets through, because they filter each other out. If they are set up in parallel, you can hear the 200 Hz and 800 Hz bands together.

You could use ReaFIR to draw a pass-through for multiple bands, but these cannot be automated.

You could set up an effect to output the dry signal to multiple channels, then chain single bandpass ReaEQs to operate on each channel pair and output back to 1-2, but that's a bit clunky.

Or, you could send the same signal to multiple tracks and have a single band pass in each, then mix them together. But that's more clunky.

[Skaven252]

Here's a parallel bandpass done with multiple effects (one dummy to split to 6 channels, then a single band ReaEQ in each channel pair, then a 3-band Joiner to mix them back together).

Would be handier if you could do this all in just one ReaEQ, with a convenient "parallel mode" checkbox for the Band Pass.

[pepe44]

I get it.
What plugin you know that is capable of doing such process? ProQ-3 fabfilter ?

[pepe44]

Take a look at this thread, maybe a good feature for the Eq:

https://forum.cockos.com/showthread.php?t=213501

[Skaven252]

Originally Posted by pepe44

What plugin you know that is capable of doing such process? ProQ-3 fabfilter ?

Fabfilter doesn't do it AFAIK, but the MeldaProduction MFilter can do it. And it's got a pretty neat vowel filter preset as well, that makes use of parallel bandpasses.

[Skaven252]

Originally Posted by pepe44

Take a look at this thread, maybe a good feature for the Eq:
https://forum.cockos.com/showthread.php?t=213501

That looks really cool.

Side note: Parallel mode is only really useful with a band pass (or rather, multiple band passes). If you use it with a peak, notch, shelf, or hi/lo pass it's a bit moot.

[pepe44]

Reopening this thread one year later.

While i was looking for a parallel eq i found that we were talking about it right here! Crazy world ehhe!

Anyway, did you manage to make it happen ?
There is the sonoris Parallel Eq.
There are not many products on the market with this topology.

[ashcat_lt]

Why not just multiple notches instead? Maybe with HP and LP at either end.

[Justin]

Hmm yes this would be cool

[pepe44]

What about the dry/wet knob in Reaper set to 50% ?

[clepsydrae]

(implemented in Reaper 6.44: https://forum.cockos.com/showthread.php?t=261613 )

[Travesty]

Nice one, I used to use multiple reaeq's to do this