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 Forum index » Instruments and Equipment » Modular Synthesis
Polivoksfilter made with Papareil PCB ( audiodemo )
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Funky40



Joined: Sep 24, 2005
Posts: 875
Location: Swiss
Audio files: 1
G2 patch files: 5

PostPosted: Thu Sep 07, 2006 12:25 pm    Post subject: Polivoksfilter made with Papareil PCB ( audiodemo ) Reply with quote  Mark this post and the followings unread

Hi there,

Bigtex asked me to post a Audiodemo when i have finished my Polivoksfilter,
so here it is.
It is my first Module made just out of a PCB.
After finishing the Module it din't worked because i forgot to solder a Bridge, so it took now some Time and help.
My Polivoksfilter is made with UAs776 instead of LM4250.
In the synthesizerforum.de they recommend to take this ones.
The sound seems to be much more character full

VCOs are two from Curetronic with 1Okt detune, and then just 1 VCA and the Envelop to the VCA. (both Doepfer).
I just tourned the Cutoff by Hand and sometimes i increased the Reso.

For Synths the Polivoks filter has a very Acidlike sound. The Curetronic VCOs also.
A soundfile i heard some days ago with Synthcom VCOs was complete different, but it was a modified Polivoks with Cv control for the Reso.
Must look if i can do this also to one of myne. ( i made two, but just one is in use. )

Attention: the Soundfile has very harsh Reso at some points. It's 256kb MP3, and a very simple prahse with no musical content, but ok to get an Impression for quick.

[Editor's note: see http://m.bareille.free.fr/modular1/vcf_polivoks/vcf_polivoks.htm --mosc]



Polivoks1, .mp3
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Funky40



Joined: Sep 24, 2005
Posts: 875
Location: Swiss
Audio files: 1
G2 patch files: 5

PostPosted: Thu Sep 07, 2006 12:44 pm    Post subject: Reply with quote  Mark this post and the followings unread

Oh, and here a Foto, one is EuroRack and the second,coloured one is my first Frac Rac Module, but it's not in use because i have no Powersupply for my Frac Rac.
The second one has a second Input with Attenuator.
Marc Bareille recommend to to that because of the high power of its Input.
But Problems with distorting i hadn't yet.

and no comment please about my very .............................ähmmm , very fast done lettering, Laughing
i'm happy that i finished this modules with self made Faceplates.
Oh, and the second one shows the way i'll go: Wood Faceplate with Papercoating and handpainting Very Happy



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bigtex



Joined: Mar 30, 2006
Posts: 321
Location: Cupertino, California

PostPosted: Thu Sep 07, 2006 4:32 pm    Post subject: Reply with quote  Mark this post and the followings unread

That thing sounds great! So dirty and screechy. It barely sounds like a filter at all. Amazing.

When my next paycheck comes in, I'm ordering two of these and the parts!
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mosc
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Joined: Jan 31, 2003
Posts: 17618
Location: Allentown, PA
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PostPosted: Fri Sep 08, 2006 5:27 pm    Post subject: Reply with quote  Mark this post and the followings unread

Yes, that is a great sounding device. Very Happy
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Funky40



Joined: Sep 24, 2005
Posts: 875
Location: Swiss
Audio files: 1
G2 patch files: 5

PostPosted: Sat Sep 09, 2006 6:55 am    Post subject: Reply with quote  Mark this post and the followings unread

Yes, but anfortunatly the MP3 File is not the same as the wav.

I look that i can make some more Files.
But in the moment i'm not patching often, and when than with my BBD module from Doepfer.
Another one, good for a Demo Very Happy
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synth_ollie



Joined: Sep 11, 2006
Posts: 149
Location: sweden

PostPosted: Wed Sep 13, 2006 6:35 am    Post subject: Reply with quote  Mark this post and the followings unread

I´ve just finished this vcf too

here are some soundclips

(the sound source is a cross modulated dual m-112 vco, the polivoks vcf is controlled by env gen + analog seq. second channel of seq also controls amount of osc cross mod)

soundclip 1 : lp mode freq swept from min to max with lo, mid, hi & max resonance settings

http://web.telia.com/~u26616113/synth_ollie/polivoks_vcf_clip1.mp3


soundclip 2 : bp mode freq swept from min to max with lo, mid, hi & max resonance settings

http://web.telia.com/~u26616113/synth_ollie/polivoks_vcf_clip2.mp3


cheers
OLLIE
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bigtex



Joined: Mar 30, 2006
Posts: 321
Location: Cupertino, California

PostPosted: Wed Sep 13, 2006 11:31 am    Post subject: Reply with quote  Mark this post and the followings unread

BRUTAL!!! Thanks for the great clip. That sounds really amazing.

Those crazy Russians. NASA designed a ridiculous anti-gravity pen to use in space, and the Cosmonauts used pencils. There's always a good, cheap way to get a job done, and this filter proves it!
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Funky40



Joined: Sep 24, 2005
Posts: 875
Location: Swiss
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PostPosted: Thu Sep 14, 2006 12:57 pm    Post subject: Reply with quote  Mark this post and the followings unread

oh wow !

If i had not allready built one, i would do it now...................

fantastic
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sneakthief



Joined: Jul 24, 2006
Posts: 529
Location: Berlin

PostPosted: Thu Sep 14, 2006 1:27 pm    Post subject: Reply with quote  Mark this post and the followings unread

where did you order the UA776's from? conrad.fr?

cheers,
michel

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synth_ollie



Joined: Sep 11, 2006
Posts: 149
Location: sweden

PostPosted: Thu Sep 14, 2006 2:31 pm    Post subject: Reply with quote  Mark this post and the followings unread

sneakthief wrote:
where did you order the UA776's from? conrad.fr?



I´ve used an ic called LS776CB (wich someone said is not exactly the same as UA776) that a friend of mine got from a company in u.k somewhere, however the vcf seems to work fine with that one too ! Smile

cheers
OLLIE
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Funky40



Joined: Sep 24, 2005
Posts: 875
Location: Swiss
Audio files: 1
G2 patch files: 5

PostPosted: Fri Sep 15, 2006 9:08 am    Post subject: Reply with quote  Mark this post and the followings unread

i got my ones from a community-order in a German forum.
Ask there if you can't find them:
http://www.synthesizerforum.de/synthesizer/viewforum.php?f=13
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