ASV Four Voice

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oozitron
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ASV Four Voice

Post by oozitron » Mon Feb 24, 2020 10:26 pm

I've been wanting an Oberheim Four Voice ever since I was in high school (1980) and when I first saw the ASV, I knew what was going to happen :-)

My music budget is very limited, so I had to sell my TR-808 to fund this project. Now that I've spent some time playing my "dinosaur", I have no doubt that I made the right choice.

I used a Yarns as my MIDI > CV converter, which is working very well. There are several keyboard modes (mono, poly, cyclic, etc). It responds very well to MIDI Pitch Bend and injects the +/- voltage right into the CV. Same for Modulation, as it has an on-board LFO. And it even has Portamento!

I made a few modifications to the ASVs. I left out the Socket board and just have jacks for CV in, Gate in, VCF mod in and Output. The LFO>VCO modulation does not affect VCO1, which makes great rolling timbres when Sync is on. I used large "Oberheim-like" knobs for the VCO2 Tune and the VCF Frequency, the others are Davies 1900 clones. I made the ADSR#1 and its destination amounts Light Grey; the LFO and its destination amounts are Dark Grey. (the rest are black) This has made programming (four of them!) much easier.

I have a bit more calibration to do, and will make some audio/video demos soon.

I love this thing... I get lost for hours playing it. Thank you Tony :-)

Andrew

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terjewinther
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Re: ASV Four Voice

Post by terjewinther » Tue Feb 25, 2020 2:24 am

That is really beautiful, and a great job you have done.

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Paradigm X
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Re: ASV Four Voice

Post by Paradigm X » Wed Feb 26, 2020 9:25 am

Awesome. Once i clear my backlog a bit i might have to build one of these...

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Flareless
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Re: ASV Four Voice

Post by Flareless » Sat Feb 29, 2020 5:16 pm

Fantastic work! :tu: :yay:

Thank you for sharing.
Rich

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What can this strange device be? When I touch it, it gives forth a sound - Neil Peart

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oozitron
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Re: ASV Four Voice

Post by oozitron » Sun Mar 01, 2020 1:07 pm

Made a few demos. Recorded live (no overdubs but I chopped out all the time I took changing all the knobs!) with a bit of echo, but no other effects at all. (the filter can certainly create the impression that there's a phaser or flanger involved).

Voices are panned. Headphones recommended!

This one only uses VCO1 (no VCO2 or sub) and lets you hear what the filter does:
https://soundcloud.com/oozitron/oakelyh ... ice-demo-1

Both VCOs going on this one. A little "Weather Report"-ish/BoC with some Rush at the end :-)
https://soundcloud.com/oozitron/oakleyh ... ice-demo-2

Some more... (with lots of VCO sync turned on)
https://soundcloud.com/oozitron/oakleyh ... ice-demo-3

Drew
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tIB
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Re: ASV Four Voice

Post by tIB » Sun Mar 01, 2020 2:17 pm

Sounds beautiful!

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Synthbuilder
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Re: ASV Four Voice

Post by Synthbuilder » Mon Mar 02, 2020 3:16 am

:hail:

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wyrtti
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Re: ASV Four Voice

Post by wyrtti » Mon Mar 02, 2020 2:47 pm

Wonderful!
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bitflip
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Re: ASV Four Voice

Post by bitflip » Sat Mar 14, 2020 5:56 pm

Well done, sounds fantastic! :yay:

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oozitron
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Re: ASV Four Voice

Post by oozitron » Thu Mar 26, 2020 9:07 am

A short demo:



Drew
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emi2345
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Re: ASV Four Voice

Post by emi2345 » Sun Mar 29, 2020 8:29 am

This is awesome

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