Digital oscs, analogue filters?

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Z
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Re: Digital oscs, analogue filters?

Post by Z » Wed Nov 20, 2013 12:27 am

I guess we can also count the PPG Waveterm (through PPG Wave 2.x) along with samplers or sampler + synth combo, although the WaveTerm makes no sound without a Wave 2.x or EVU.

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Re: Digital oscs, analogue filters?

Post by plikestechno » Wed Nov 20, 2013 1:41 am

Lots of options in modular as well. Eurorack, Modcan, MOTM, Frac have all their own spins of analog and digital fun.
Serge/Modcan A/MOTM/Frac/Phenol/Andromeda/Jupiter6Europa/OctaveCatSRM/ARPSolina/ARPPro Soloist/Pro2/Korg770/Juno60/Lambda/Anamono/Little Deformer/Integra7/Microwave1&2/Syncussion/FS1R/Microkorg/Xoxio/VL1M/JD990/MKS50/TX816/DSS1/KARP/TG33/OCoast/SC40

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Re: Digital oscs, analogue filters?

Post by pflosi » Wed Nov 20, 2013 1:49 pm

^ I thought that too first, but since you can combine (digital) oscs with (analog) filters freely anyways, and since there's a metric shitton of each even just in Euro, the list would get rather extensive pretty soon.

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Re: Digital oscs, analogue filters?

Post by madtheory » Wed Nov 20, 2013 4:43 pm

rhino wrote:Off-center, but the Korg Poly-61 has one analog and one digital (divide down) oscillator thru an analog filter.
What a good idea. So is it the same as a poly 6 with the divide osc added on?

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Re: Digital oscs, analogue filters?

Post by nathanscribe » Wed Nov 20, 2013 5:38 pm

No. A quick peek at the service manual reveals a different oscillator structure, using the programmable timers to both generate square waves for osc 2 and reset the ramp capacitor in osc 1, and it uses a single LM13600 per filter voice, which makes it 12dB.

Further perusal shows that osc 2's sawtooth is a stepped wave made from squares summed inversely proportionally, as in some other Korg designs. The fewest number of steps used is 4. Lofi!

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Re: Digital oscs, analogue filters?

Post by madtheory » Fri Nov 22, 2013 10:57 am

Ah, cool. Not a million miles away from the Juno or the Bit One.

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Re: Digital oscs, analogue filters?

Post by PolyMTL » Thu Dec 05, 2013 6:36 pm

Z wrote:
nathanscribe wrote:
Z wrote:Do 80s Akai samplers processed through AX60, AX73 or VX90 count?
They use CEM filters, don't they... do you know how the process works? It's not simply an audio input, is it, it's something to do with using the samplers as effectively external oscillators, I think, but correct me if I'm wrong.
I haven't tried it yet, but I will be soon. It is my understanding is the each voice from the sampler is run through the 13 pin DIN cable to the synth's pre-VCF mixer section. The sampler's voices can be mixed with the synths VCOs.

I want to think I saw on an Akai brochure back in the day a 13 pin DIN cable with 1/4" plugs so you could essentially give the S900 individual outs.

Don't quote me, but I think the Akai synths use SSM filters.

I only suggested this combination since you were also including samplers.
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Re: Digital oscs, analogue filters?

Post by Nannerfan » Thu Dec 05, 2013 7:59 pm

EMW WCS-1

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Re: Digital oscs, analogue filters?

Post by Sir Ruff » Fri Dec 06, 2013 12:27 am

No one's gonna mention this one:

Keytek CTS-2000 and CTS-1000 (preset version)--both have two digital wavetable-based oscillators and analog CEM (3398?) filters. Kind of like a cross between a ESQ-1/SQ-80 and a Waldorf synth--you can move through 3 wavetables over time on each oscillator.
Do you even post on vse bro?

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Re: Digital oscs, analogue filters?

Post by Synthacon » Tue Dec 10, 2013 5:24 pm

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Re: Digital oscs, analogue filters?

Post by ItsMeOnly » Fri Dec 13, 2013 6:38 pm

tim gueguen wrote:Fairlight CMI IIx and III, usable as actual VCFs. Earlier versions had filters, but only to deal with aliasing noise.
Just a correction: CMI series III filters are not CEM/SSM anymore, they're discrete.
Also, Don't remember IIx having filter envelopes, so I'd say it falls in the same category as I/II.

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Re: Digital oscs, analogue filters?

Post by Syn-Fi » Sun Jul 27, 2014 6:57 pm

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Re: Digital oscs, analogue filters?

Post by sneakthief » Sun Jul 27, 2014 7:36 pm

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Re: Digital oscs, analogue filters?

Post by Jabberwalky » Sun Jul 27, 2014 8:27 pm

nathanscribe wrote:No. A quick peek at the service manual reveals a different oscillator structure, using the programmable timers to both generate square waves for osc 2 and reset the ramp capacitor in osc 1, and it uses a single LM13600 per filter voice, which makes it 12dB.

Further perusal shows that osc 2's sawtooth is a stepped wave made from squares summed inversely proportionally, as in some other Korg designs. The fewest number of steps used is 4. Lofi!
It's got lofi oscillators, but you'd honestly never know it! It can sound very smooth. As far as I know, the 12db filter is unique only to this synth, and I really really like it. I may have to jump the filter out to pots just to get the full range.

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