ADDAC 601 / 8 band voltage controlled fixed filterbank / processing some noise / quick overview

video upload by BRiES

"In this quick video I run a mix of noise through the ADDAC 601 to demonstrate how the bands sound and how they respond to modulation for the VCAs on the seperate bands. I use the EVEN and ODD outputs panned left and right, and the WET output as well.

The mute switches only effect the sound at the WET/MIX output. The knobs and built in VCAs control the level of the bands for every output.

Cosmotronic VORTEX sample pack: https://ko-fi.com/s/ac0e178035"

Vortex | A Complex Oscillator by Cosmotronic

video upload by Cinematic Laboratory

"In this video I'll dive a bit deeper into the Vortex. At first glance it's just another '259 inspired' machine, but I feel it goes way beyond the standard features of a complex VCO. You really need to read the manual to get the most from it - which is a lot.

This is a spin-off episode for the '259' series, so it will be in the same playlist. The series doesn't go deep into individual modules but is more about design concepts in general. I'll start with Episode 03 next week and I am planning spin-off's for the Cs-L and the DPO."

You can find additional Cosmotronic Vortex posts here.

Buchla 259 | Episode 02 | Playing the Oscillators

video upload by Cinematic Laboratory

"In episode 01 I started with the Main/Principal oscillator. But a complex oscillator also has a modulation oscillator. In episode 02 I am going to focus on the 'dual oscillator' side, which could be useful for anyone with two VCO's in a case. The original title was 'surfing the oscillators' because it's inspired by a @vgermuse Todd Barton live improvisation from 2012 where he actually played the 259 on instinct, just fiddling knobs. Part one of the video is music from the actual recording: https://soundcloud.com/user7621213/bu...

Playing the oscillators by hand is possibly the most fun and gratifying experience with your modular. Just have a big reverb nearby! So I hope you have FM inputs to play with. I am saving the modulation/FM bus for episode 03 and I may finish the series with a 'build your own complex oscillator with anything you can find'. In this episode I am also revisiting the Furthrrrr Generator with the 'strong zero' core. I mentioned that the digital core may not be the best choice if you're looking for an analog 259 experience but this does not mean it's bad. It's quite the opposite.

We'll stay in complex territory this month. Next up will be a Cosmotronic Vortex video because all the material I shot for this series deserves a separate item. If all goes well, I'll have a Cs-L video planned and finally a Lubadh 'reel life' episode with 2.0 firmware. So plenty to study and hopefully something to look forward to."

Cosmotronic Vortex Complex Oscillator RAW SOUNDS DEMO

video upload by brandon logic

"Raw sounds recorded straight from the outputs.
All analog wave folding, wave shaping, filtering, ring mod, phase mod, TZFM through zero fm all on board!"

Update:

Cosmotronic Vortex + Natural Gate + Magneto SOUND DEMO

video upload by brandon logic

"sequence into carrier oscillator, random voltage into modulator oscillator, and random into Natural Gates decay time."

Superbooth 22: Cosmotronic - 5 Modules

video upload by sonicstate

"Matthijs started Cosmotronic 2 and a half years ago, and a pretty tumultuous time it's been, so it's great to finally see these modules at Superbooth.

Vortex is a complex oscillator, with 2 VCOs, each with their own unique signal path and filters. They can be cross-modulated and phase-shifted through-zero opening up a wide pallete of sound. We also get to see Delta-V - a dual function generator, Peradam, a side-chained distortion, Messor a stereo compressor, and Cosmix, a stereo mixer and dual band distortion with 4 mono channels, with panning and aux send (pre/post fader) and 2 stereo channels.

All modules available now.

Vortex Price: 750 euros. Delta-V Price: 220 euros. Cosmix Price: 270 euros. Messor Price: 230 euros. Peradam Price: 270 euros"

Complex oscillator comparison - Cosmotronic vs. Hexinverter

video upload by John Schussler

"Unlike the Verbos and Sputnik complex oscillators I looked at last time [posted here], which are fairly straightforward, the Cosmotronic and Hexinverter complex oscillators are...definitely more complex.

They both add phase modulation to the wavefolder, and include more elaborate modulation buss control. Plus more intermodulation capabilities.

They're set up sufficiently differently that a direct feature-by-feature comparison would be hard to do in a sensible way. Or in under 3 hours. So this is really a long, meandering, very skip-around-able video to sample both flavors.

And when you're done, go listen to the Verbos and Sputnik. It's an interesting comparison.

Sequence: Stochastic IG. Envelope: Zadar

00:00 Intro
00:20 Vortex sequence
21:38 Vortex drone
28:28 Mindphaser sequence
47:22 Mindphaser drone"

Cosmotronic Vortex - Complex Oscillator (Demo)

video upload by Cosmotronic

"Two VCO's, each with a unique waveshaper and folder and a 2-pole low pass filter. An FM index bus lets you patch complex cross modulations using exponential and thru zero linear FM. The left VCO can be phase modulated, while the right VCO can be amplitude modulated, and everything under CV control.

All sounds coming from Vortex, envelopes and vca's come from Delta-v.
Everything 100% analog.

Timecodes:

0:00 Right VCO - Noodling
3:37 Duophonic patch
4:57 Right VCO Sine out: Waveshaping, AM, FM
6:17 Right VCO jam, using CV envelopes
11:02 Right VCO main out, raw waveforms
11:28 Left VCO, raw waveforms
12:29 Modulation madness"

See this post for additional details on the Cosmotronic Vortex.

Cosmotronic Vortex - Thru Zero Complex Oscillator

video by Cosmotronic

"All sounds are dry and straight from the vco, except for the Delta-V VCA."

"A new 100% analog complex oscillator, featuring two independent VCO's. Both voices have a unique signal path and flavour. Complex cross modulations entangle them together, opening up completely new timbral territories.

Features inlude the Thru Zero trinity; Frequency, Phase and Amplitude modulation.
Each oscillator also has its own Low Pass Filter, which works great to mellow the harsher tones from complex intermodulations.

Each VCO has great tracking and temperature stability, there is no distinction between a carrier and modulator.

The FM bus modulates the index of each individual voice, with linear and exponential inputs for external sources. There are also inputs for Sync in, with both soft and hard sync.

VCO 1
The left VCO signal chain starts with a shape function, that lets you morph between triangle and saw. This waveform is also available as a separate output.

Next is a sinusoidal wavefolder, which changes its response dramaticaly based on shape of the waveform. The circuit is based on a modified version of a design by Barrie Gilbert from 1977, popularized by Open-Music-Labs (used with permission)
This circuit also creates the possibility of Thru Zero Phase Modulation, here the depth is controlled with the third slider. The source is normaled to VCO 2, but external modulation sources can be patched in, and the depth can also be modulated with CV.

Lastly there's a 2-pole Low Pass Filter, before going out the MAIN output. All parameters can be CV controlled, and feature handy attenuators at the inputs.

VCO 2

The first slider is a continuous waveform shaper, that morphs from sine to tri to saw.

This waveform then enters the Thru Zero Amplitude Modulation (Ringmod) section. The slider sets the depth of modulation, with the source normalized to VCO 1. The depth can be CV controlled, and an external source can be patched as well. The result is also available on a separate output, pre wavefolder/filter (VCO 2 sine).

The third slider is a wavefolder, it's based around a novel wavefolding topology, with a unique and more aggressive sound compared to the sinusoidal folder of VCO 1.

The wavefolded signal goes into a 2 pole Low Pass Filter, and out of the MAIN output."