Analogue Additive Synthesizer

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Analogue Additive Synthesizer

Post by Percivale » Thu Feb 12, 2015 7:35 am

I am curious to know if there is any Analogue Additive Synthesizer?

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Re: Analogue Additive Synthesizer

Post by adamstan » Thu Feb 12, 2015 8:07 am

If you ask about keyboards - no, there isn't. You can do additive synthesis with suitably large modular system of course ;-). You need (at least) stable oscillator, VCA and envelope for each partial.
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Re: Analogue Additive Synthesizer

Post by meatballfulton » Thu Feb 12, 2015 12:05 pm

Hammond organ!

Each drawbar controls a harmonic.

Image
The nine drawbars represent the nine most important harmonics, going in order of left to right, the sub-octave, the fifth, the unison or fundamental octave, the 8th, the 12th, the 15th, the 17th, the 19th, and the 22nd. All of these except the 17th are either roots or fifths. The 17th is a third.
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Re: Analogue Additive Synthesizer

Post by ryryoftokyo » Thu Feb 12, 2015 6:52 pm

^ Beat me to the punch on the Hammond Drawbar Organ. The modular route is also viable. Beyond that, there are hybrids like to Korg Poly 800 that will give you an analog additive sound.
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Re: Analogue Additive Synthesizer

Post by Bitexion » Thu Feb 12, 2015 7:14 pm

This is also an additive synthesizer. Doesn't get more analog than this

Image

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Re: Analogue Additive Synthesizer

Post by silikon » Thu Feb 12, 2015 7:23 pm

The only one that comes to mind is the Analogue Systems RS370/375 modules... I suppose in modern synthesis terms, that's the closest I have found (besides the cheeky responses above)...
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Re: Analogue Additive Synthesizer

Post by Z » Thu Feb 12, 2015 7:38 pm

Roland SH-7?
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Re: Analogue Additive Synthesizer

Post by Bitexion » Thu Feb 12, 2015 8:37 pm

Meh, the SH7 has 4 octaved sinewaves you can mix. Like a 4 drawbar organ.

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Re: Analogue Additive Synthesizer

Post by Automatic Gainsay » Fri Feb 13, 2015 4:17 am

There are none.

I have a design, but I'm trying to find people to do it.


The Hammond isn't analog, it's electromechanical.
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Re: Analogue Additive Synthesizer

Post by meatballfulton » Fri Feb 13, 2015 6:00 am

Automatic Gainsay wrote:The Hammond isn't analog, it's electromechanical.
There are Hammonds with drawbars and no tone wheels...you know, the ones the tone wheel nazis hate from the 60s and 70s 8-)
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Re: Analogue Additive Synthesizer

Post by Black Tomorrow » Fri Feb 13, 2015 6:01 am

ryryoftokyo wrote:^ there are hybrids like to Korg Poly 800 that will give you an analog additive sound.
I gotta admit I'm scratching my head over this. I have a Poly 800 and I'm trying to think of how it can be used in an additive manner.
You can't synthesize love

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Re: Analogue Additive Synthesizer

Post by max badwan » Fri Feb 13, 2015 7:03 am

Black Tomorrow wrote:
ryryoftokyo wrote:^ there are hybrids like to Korg Poly 800 that will give you an analog additive sound.
I gotta admit I'm scratching my head over this. I have a Poly 800 and I'm trying to think of how it can be used in an additive manner.
The DCOs in the Poly 800 have some weird square wave additive design - the saw wave is built up from square wave harmonics, and you can change the harmonic content with the feet selector.

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Re: Analogue Additive Synthesizer

Post by Stab Frenzy » Fri Feb 13, 2015 9:06 am

Poly 800 isn't DCOs, it's digital chips. Not analogue.

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Re: Analogue Additive Synthesizer

Post by adamstan » Fri Feb 13, 2015 9:10 am

One may say that, but with 5V square-wave there is no difference between "DCO" and digital ;-) It is digital in the same way, as D flip-flops used as octave dividers in organs.
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Re: Analogue Additive Synthesizer

Post by Black Tomorrow » Fri Feb 13, 2015 9:19 am

Stab Frenzy wrote:Poly 800 isn't DCOs, it's digital chips. Not analogue.
Darn. Does that mean I'm retroactively disqualified from the DCO competition? ;)
You can't synthesize love

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