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-psycledelics- » Discussions » TIPS BOARD » multiband compression?
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dark_virus




Date Registered:
04.2004
Location:
Brazil
Posts: 295


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  multiband compression?        Go on top to this Page

Hi, folks! Let's see if my crappy english is enough to explain this weird situation.

I was thinking... supposing I want to split my signal patch in 2 bands (for the matter, "hi" and "low"), in order to do some weird editing, I could do it as follows:

1 - link all machines to one plugin (dummy or gainer)
2 - split the signal output in 2 patches, and link each of them to 1 "2-pole filters" respectively (so, 2 filters).
3 - these filters will have the same "nominal" frequency, but one is set to "hipass" and the other to "lowpass"
4 - these filters could be linked to 1 "arguru compressors" respectively (2 compressors)
5 - the output of the compressors will be joined again in one machine, to continue the signal patch

So, if I want to manage my bass frequencies, I could do this procedure in order to compress only my bass patch, thanks to the filter adjusted to "hipass"

Does this makes sense? Is this a multiband compression? Or the 2 compressors could mess the things up, since they're 2 different machines?

Sorry if this has been discussed before, but I was unable to find any topic.


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20.03.2006, 20:22 Profile of dark_virus Add dark_virus to your Buddy-List Homepage of dark_virus
Taika-Kim




Date Registered:
03.2002
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Hmm, I don't see any problem in this, it's a very clever idea!

There might maybe be some issues with phase cancellation if a signal is split to many parts, processed and then combined, but you'll just have to try it out.

22.03.2006, 19:14 Profile of Taika-Kim Add Taika-Kim to your Buddy-List Homepage of Taika-Kim
dark_virus




Date Registered:
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Hi, Taika-Kim!

I've tried it before, but in an experimental way, and the result was interesting and "punchy". I didn't use it in any song yet. In truth, I didn't see any need in use it, but you know, it can be useful someday.

phase cancellation -> to my knowledge, phase cancellation is an bass frequencies issue. Among other things, it causes problems when a stereo song is played on a mono system. Is this right?

If not, how phase cancellation can be harmful to my songs?


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23.03.2006, 14:51 Profile of dark_virus Add dark_virus to your Buddy-List Homepage of dark_virus
Taika-Kim




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Yeah, it's a bass issue mostly. It can happen every time when you combine two signals... So watch out for those bass frequencies when you mix split signals.

23.03.2006, 18:29 Profile of Taika-Kim Add Taika-Kim to your Buddy-List Homepage of Taika-Kim
minifrog




Date Registered:
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I tried something similar using two instances of "bugpass" vst filters. I am running it right now, in fact. Two wires out of Drumatic, each to a bugpass, and then each to a delay synced a different speed, so the hats and the kicks and bass drum had different syncs. I'm no expert at this stuff tho.

And BTW, there is a multiband compressor by slim slow slider. Would this fit your bill? I don't know.

25.03.2006, 07:03 Profile of minifrog Add minifrog to your Buddy-List
dark_virus




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quote:
Original by minifrog
And BTW, there is a multiband compressor by slim slow slider. Would this fit your bill? I don't know.


Hi, minifrog!

Yes, I know slim slow slider plugins, and I thinks this is the unique free multiband compressor to date. But, it's too CPU demanding, and it tend to crashes Psycle, when rescanning plugins.

Psycle is so flexible, so we can try some unusual techniques to find interesting results.

My next goal is figure out how to do side-chain compression!


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27.03.2006, 21:36 Profile of dark_virus Add dark_virus to your Buddy-List Homepage of dark_virus
_sue_




Date Registered:
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arguru's stardust is also multiband and free

10.05.2006, 13:28 Profile of _sue_ Add _sue_ to your Buddy-List Add _sue_ to your Contact-List
bizarro




Date Registered:
08.2006
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In the sourceforge wiki there is also a "compression" article which also features some info about multiband-compression. And Buzzroom's GranComp3 is shown there, which is afaik also free.

http://psycle.sourceforge.net/wiki/Compressor

By the way (responding to your initial idea):
if you use two filters (one hi and one lopass) to split the signal, then you rely on the fact, that adding the two signals together (without using any compression) will result in the original signal. Isnt it possible, that the frequency slope will differ? For example, if the filter has a built in amount of resonance (which sounds quite silly, but who knows...)

07.08.2006, 22:19 Profile of bizarro Add bizarro to your Buddy-List
dark_virus




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Hi, bizarro!

So many time I don't come here. Well, in fact I didn't used this technique, because I didn't need yet. But, seems a "clever idea", like our friend above said.

I'm using the built in 2-pole filter, which has a individual ressonance control. In this case, ressonance is set do zero, in order to avoid any weird effect.

Yeah! Stardust is free and an awesome tool, but I really can't understand its controls and "results". But it can be very helpful for weird compression FX.


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02.10.2006, 14:56 Profile of dark_virus Add dark_virus to your Buddy-List Homepage of dark_virus
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