Equalization & processing questions

Norbert's icon

I'm looking for suggestions on a couple of EQ considerations...

I have a Max-MSP project that will be performed as an installation.
Once it leaves the "womb" of my studio I expect to have to do some
EQ-ing once it's in the space and the room's natural acoustics take
effect.

The first question is whether it's advisable to stick with Max-based
EQ options or use outboard gear. I've never done any sort of EQ-type
processing in Max and don't know how intensive it can be.

This piece uses 4 poly~ objects. If I do proceed with EQ inside Max is
there a way to create a master EQ that will effect the entire mix?
Right now, each poly has four outputs (for a quad speaker set-up) and
is routed to four inputs in the dac~ object. I don't want to have to
use four separate EQs here--how can that be avoided?

The third part of the question is about the EQ patch itself. Can
someone please recommend a stable, good-sounding EQ that is available
either as freeware or shareware for Max.

I would also consider using one of my VST EQ plug-ins if these kinds
of things will run reliably.

Thanks to all in advance!

Rocco Siliotto's icon

honestly, i would suggest to keep your project
untouched and your cpu not to full blast, i don't know
about the complexity of the processes that you're
getting performed by your machine , but i think that
can't hurt to consider that. basicaaly i would eq the
analog output tahat feeds the pa with a graphic analog
eq (a 31 band i.e.), just to keep it simple. let me
know what you'll end up doing. ciao, R.

mzed's icon

You could have a look at peqbank~ here:

Put it anywhere in the signal chain you like. Seems like you want it immediately before the dac~.

mz

Stefan Tiedje's icon

Norbert Herber wrote:
> The first question is whether it's advisable to stick with Max-based
> EQ options or use outboard gear. I've never done any sort of EQ-type
> processing in Max and don't know how intensive it can be.

Can be straight forward with a combination of Filtergraph~ and biquad~
or cascade~, Max or outboard i always a matter of taste and/or budget.

> This piece uses 4 poly~ objects. If I do proceed with EQ inside Max is
> there a way to create a master EQ that will effect the entire mix?
> Right now, each poly has four outputs (for a quad speaker set-up) and
> is routed to four inputs in the dac~ object. I don't want to have to
> use four separate EQs here--how can that be avoided?

You can' avoid that, but you could control all four with the same
Filtergraph~.

> The third part of the question is about the EQ patch itself. Can
> someone please recommend a stable, good-sounding EQ that is available
> either as freeware or shareware for Max.
>
> I would also consider using one of my VST EQ plug-ins if these kinds
> of things will run reliably.

That should be no problem either

Stefan

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Stefan Tiedje
Klanggestalter
Electronic Composition
&
Improvisation

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