Yeah, OLEDs are as easy to work with as character lcd screens now, only with more space and capabilities etc.
Stuff all this complicated gimmickry. I was hoping to have a simple LFO to split out to more than one source. Getting divides of the pulse in multiple outs was cool. Getting maybe the LFO in a digital source that can skip through in a Euclidean way would be nice. Make a few presets and put them on some mini switches and menus arenāt necessary. Guide the function with a few 3mm LEDs and OLEDs arenāt necessary. I thought around 10cm width but mostly to make those outputs breathe.
-Fumu / Esopus
1 Like
Sounds to me like you just want a multiple + LFO.
2 Likes
This is with triangle rather than pulse signals, but it was one of the most popular eurorack modules of the year. I made a Rack version thatās one of my most popular modules. Basically the idea is that since most other modules have CV parameter modulationā¦ well, then Modulate All The Things^tm. Itās very useful for ambient soundscapes and generative music. Iād love a Kosmo Ochd.
1 Like
ive been wondering about the circuit for that.
(ochd that is)
1 Like
Caustic,
My want is explained above: I saw the Novation Peak had a global LFO. Iāve been trying to plan my Kosmo on what I see in hardware synthesizers and the only thing missing from the VCLFO was some simple LFO with multiple outputs, like a global LFO. Though a trick, two or three like divided tempos by 1/2 and 1/4 or skipped phases like a Euclidean sequencer wouldnāt be refused. I mean slim as it hasnāt become bloated with featurejam beyond its purpose of keeping multiple inputs on the same LFO. Not too gimmicky or complicated of a multiple clock/LFO/sequencer was my initial dream.
-Fumu / Esopus
Iāve been trying to figure this out too. It looks like there are 8 (or 4?) SMDs ICs on the board, but I canāt see what they are. I think they are Wien bridge oscillator - Wikipedia based oscillators.
1 Like
Wien bridge oscillators produce sine waves, not triangle waves, and are a bit tricky to control by voltage since you need to change multiple component values at the same time (and you also need to do some trickery to get them to oscillate in the first place).
Triangle waves are easy to make; just set things up so you charge and discharge a capacitor with a constant current, and the voltage across the capacitor will be a perfect triangle wave (or you can cheat and charge and discharge with a constant voltage across through a resistor; that wonāt give you perfect triangles, but may be good enough). The trickery here appears to be how this thing is controlled (the description doesnāt really explain much).
(if you want a bunch of fixed sine wave oscillators, see here)
1 Like
so a bit of an update today on facebook I stumbled upon Tim Nijssenās project which looks like a cool clock distributor! its a pcbs project give him a message if you Are interested! https://www.facebook.com/groups/549267875688193/user/1421697171/
4 Likes
search up Tims name on Facebook you can add him and message him there 
2 Likes
Thanks for the shoutout Sam! I can be contacted right here, no worries. PCBs are up in the buy-sell threat: The BST Thread (Buy, Sell, Trade) - #133 by TimMJN
They are going kinda quickly, but I will do another run!
3 Likes
I think it looks awesome. I feel kind of dumb I canāt figure out how Iād use it.
-Fumu / Esopus
Apart from being a normal clock divider, the rotate function allows you to generate complex āpolyrhythmsā. I put that in quotes, since itās not polyrhythms in the classical synth sense, ie multiple rhythmic voices with different sequence lengths. Rather, the rhythm becomes a series of N pulses at X clock rate, followed by M pulses at Y clock rate etc. Depending on how you trigger the rotation, the sequence might not repeat for a very long time. Iāve found an excellent example here:
Also, it tracks accurately up to a few kHz, so you could even use it to make pulse wave chords.
4 Likes
I want to bump awareness of something I vaguely put out there earlier. Iām excited maybe someday Iāll release modules. Until I do I wanted to put the awareness out there of other quad LFO sources like 4ms Quad Pingable LFO and Xaoc Batumi. It would be nice having a utility not too fancy multiple LFO and external sync. I see global LFOās on non modular synths like Novation Peak but modular people seem to not consider they added more VCOās than they could ever need but they ran out of LFOās. I might be interested in collaboration on a multiple. It does look like an LFO and a multiple but when you consider having different LFOās with a tap tempo itās a bit greater.
-Fumu / Esopus
1 Like
thanks kardashev, synced up LFOās??? its quite funny as I was planning a 6 lfo set but un synced, I have never really found a need for synced LFOās found the need for out of sync ones phasing? the VCLFOās have sync, maybe a duel version with less knobs could be cool, it can be synced and not synced, there is also that clock source out in the wind! by Tim
5 Likes
Sam,
Iāve heard that some of the multiple LFOās have phasing options which I would think is loads of fun! You could have for example each LFO one 90 degree ahead on the cycle. Yes dual LFOās is all I think is not in the picture maybe quad is a lot.
-Fumu / Esopus
I started working on a quad/oct LFO (basically a DivKid Ochd in Kosmo format), which doesnāt have sync but does have a master control knob with CV input and an attenuator. I think with real sync and division itāll be a lot harder or will require lots of Electric Druid chips.
1 Like