Undoubtably the best video I have seen on KZread. You have clarified a very mysterious pair of modules to the "laymen" . The pairing of the gates and the 297 - and + voltages is an ingenious system. Much like the voltage processor in the ARP 2600. A CV machine indeed! I look forward to experimenting. Thanks Cheers

my brain exploded trying to understand that AND/NOR madness 😂 you are genius

These are by far the nerdiest patches I've seen! Thank you so much for the great explanation of the schematics and logic. BTW, I don't have any doubts, that you could also patch a Z80 processor with your System 100 ;-)

I dunno how you worked this out, but blimey well done!

I'd have done a naive approach of feeding the same CV into two oscillators, one on (say) 16' any-waveform and the other on 8' square-waveform. Clearly I'm missing something about why that's not equivalent to what you were trying to achieve... I suspect what I'm missing is the oscillators being in perfect phase sync?

@synthesizer83

7 ай бұрын

Yes, thats it basically. Apart from that, you receive pretty much the desired effect of a sub osc with your approach. But „by definition“, a sub osc should be phase syncd.

Very interesting, thanks for putting the time/research into this. I've been using technique #2 with my system 100 to create a "sub oscillator." I understand why it's not an actual sub oscillator, but I'm wondering how much of a sonic difference there is between, say, 2 and 4 after you've had them both patched up, all other settings being equal, thoughts? I'll get around to A/Bing them myself.

@MrMarcLaflamme

2 жыл бұрын

I don't think there is a sonic difference but definitely with a true sub-osc generator you don't need to worry about tuning two separate modules together. It will always follow the main osc.

@synthesizer83

2 жыл бұрын

Actually patch #2 is more flexible as you can change the waveform of the "sub oscillator", while patch #4 always gives a square wave. However, patch #2 "wastes" a full VCO just for creating the sub octave (or, whatever offset you want).

synthe sizer83 looks like you were running into a race condition between the two nor gates until the threshold of both inputs is just right.

@synthesizer83

11 ай бұрын

Yep, that was even easier than getting it tuned correctly...

Can you recommend any reading to get my head around using these modules for Logic? I've been looking and could find nothing

Following Jason Bs question: Are there any sonic/musical differences between patch #2 and patch #4? I have plenty of oscillators and use patch #2 to get "sub-oscillators", easier to patch :).

@synthesizer83

2 жыл бұрын

In fact patch 2 gives you more flexibility, because you can change the waveform of the "sub oscillator". The S&H based patch #4 always gives a square wave.

What's the name of that oscilloscope module?

@juhunet

2 жыл бұрын

VPME - ZeroScope

@seansnyder7744

2 жыл бұрын

@@juhunet thanks!

where you get the wooden box from or your make it yourself?

@synthesizer83

10 ай бұрын

It's just a Doepfer LowCost rack. They also have a DIY version.

@simonburns1055

5 ай бұрын

thanks