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Re: Pet Mods?/ Res EQ

2004-12-09 by darkstr1746@comcast.net

So you have a panel of nothing but VCFQX (8) to replicate the ResEQ. How are you going to mix all of that? Multiple MIX2s? The beauty of the EQ with VC of each segment is that you only have to deal with one output. The "mixing" as it were is done within the module itself. However, that said, if you had enough mixing power and XFADers, you could have a veritable field day throwing the individual outputs of eight VCFQXs around the stereo spectrum...... even better with quad.

kind regards

john duval

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-------------- Original message --------------
I'm with you 100% on the benefits of the idea, and I was thinking about
the jazzed up RES idea myself.
But then it dawned on me... since I was thinking about getting some more
filters anyway, that would be the way to go. And yes, you'd have to
tune them first to whatever scheme you had in mind. But I given the
choice between flexibility & convenience, I've always gone with
flexibility... that's why I got the Serge in the first place.....

darkstr1746@... wrote:

> Well, wouldn't you need to "tune" each filter to correspond to it's
> counterpart on the ResEQ? this idea was just off the top of my
> head......but on further consideration, VC attenuation of each " eq
> step" would negate the necessity of each step having it's own output.
> The common out at the top would suffice. Think of the wonderful
> possibilitie that arise if you could have multiple ADSRs controling
> differen't "eq steps". You could get static note "sequences" based on
> amplitude and tone.from one note. And with the addition of extra
> notes....... whew!! LOL
> kind regards
> john duval
>
>
> -------------- Original message --------------
> couldn't you just do this with a bank of say 4 VCFQ's + a
> mixer? Then
> when you're tired of listening to resonating spectra, you'd still
> have 4
> VCFQ's + a mixer to do other things.
>
> darkstr1746@... wrote:
>
> > The VC of each Resonant step would be very cool and it is something
> > that i have mentioned to Rex for several years.
> >
>
>
> --
> m/n/m/l
> surreal electronic music, sound, noise
> http://mnml.soulcatcher.net <http://mnml.soulcatcher.net/>
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--
m/n/m/l
surreal electronic music, sound, noise
http://mnml.soulcatcher.net

Keep on Patchin'!

Re: Pet Mods?/ Res EQ

2004-12-09 by John P

well john my thinking was to use maybe 3 or 4 or 5 vcfq's. When I use
the res I don't think I really use all 10 bands in any given
application..... say, I want to roll off some highs and give a bass
boost with a weird hump in the midrange. If I had 3 vcfq's I could do
that. So with 5 vcfq's we're talking one mix2 module. Not so bad.
Sure, you could use 8 but I don't know if you could really *perceive*
all that spectral mangulation going on with most waveforms. Maybe in a
few applications, but I have a hard time imagining it. ????

darkstr1746@... wrote:

Show quoted textHide quoted text

> So you have a panel of nothing but VCFQX (8) to replicate the ResEQ.
> How are you going to mix all of that? Multiple MIX2s? The beauty of
> the EQ with VC of each segment is that you only have to deal with one
> output. The "mixing" as it were is done within the module itself.
> However, that said, if you had enough mixing power and XFADers, you
> could have a veritable field day throwing the individual outputs of
> eight VCFQXs around the stereo spectrum...... even better with quad.
> kind regards
> john duval

Re: Pet Mods?/ Res EQ

2004-12-09 by Peter Grenader

There are two ways of adding VC to a Res EQ that come to mind. Both require
A LOT of components, but I dare say would create really interesting results.

A) Re-route the pots so they are used to open a vactrol on each bank. A
simple passive summer would afford an external input as well as the pot.
However, each vactrol would require it's own expo converter. This equates
to about 10 components per bank, with the vac's running about $4 each at
small quantities.

B) Completely change the front end architecture by placing a resistor on
board in place of the pot which holds it's level pretty much unattenuated,
then reconfigure the pot (which can also be summed with an external VC
input) to drive a variable current source which in turn controls a
transconductance amplifier, such as a 3080 or 13600 or 13700. Basically
slap VCAs at each output.

Both would allow for voltage controllable bank levels out of the filters
summed outs and as well facilitate separate outputs for each bank.

Now, what would be REALLY cool is to also add a single pot and VC that would
act as a sweep function, that could be used like a master center freq pot.
This is also do'able utilizing a variant of the circuit shown in Grant
Ritcher's DIY page, the vactrol driven electro-optical mixer.

That would be the shite.

- P

John P wrote:

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>
> well john my thinking was to use maybe 3 or 4 or 5 vcfq's. When I use
> the res I don't think I really use all 10 bands in any given
> application..... say, I want to roll off some highs and give a bass
> boost with a weird hump in the midrange. If I had 3 vcfq's I could do
> that. So with 5 vcfq's we're talking one mix2 module. Not so bad.
> Sure, you could use 8 but I don't know if you could really *perceive*
> all that spectral mangulation going on with most waveforms. Maybe in a
> few applications, but I have a hard time imagining it. ????
>
> darkstr1746@... wrote:
>
>> So you have a panel of nothing but VCFQX (8) to replicate the ResEQ.
>> How are you going to mix all of that? Multiple MIX2s? The beauty of
>> the EQ with VC of each segment is that you only have to deal with one
>> output. The "mixing" as it were is done within the module itself.
>> However, that said, if you had enough mixing power and XFADers, you
>> could have a veritable field day throwing the individual outputs of
>> eight VCFQXs around the stereo spectrum...... even better with quad.
>> kind regards
>> john duval
>
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