Showing posts with label ADDAC. Show all posts
Showing posts with label ADDAC. Show all posts

Thursday, April 11, 2024

The ADDAC Random Bezier Waves

video upload by Monotrail Tech Talk

"Best day ever! I have been working on a module with the amazing people over at ADDAC, and it’s finally here! The Random Bezier Waves is an easy to use dual organic random voltage generator. Both waves have manual and CV control over frequency and output level. Curve and offset control, as well as three different clipping modes allow for a lot of different waves, from calm organic flowing voltages to chaotic jumping madness. The module produces 6 wave outs, and has two different gate outputs on top, making it great for patch-driving features and generative setups."

00:00 – Introducing the Random Bezier Waves
02:02 – Module overview
07:11 – Basic patches
16:46 – Advanced ideas
22:14 – Generative heart

"This module started with an idea from Rijnder Kamerbeek aka Monotrail, a straightforward random generator with interpolation between random points making it something like a complex, ever evolving, LFO

The concept is simple. It contains two identical smooth random voltage generators. Each has a frequency, level, offset and curve control. The frequency control sets a steady pace with which bipolar random voltages are generated. The level control works like an attenuator/VCA on the output, reaching from max output to closed. The offset allows shifting the whole wave up and down on the voltage range. Curve determines the shape of the interpolation.The bipolar activity on the main outputs as well as gate outputs are visualised with LEDs.

Both Frequency and Level controls have a CV input with attenuator. When there is nothing patched into the CV inputs, these are internally connected to the main output of the other channel. This normalization makes it very easy to add randomization to the frequency or level for more depth, or of course, add cross-modulation for chaotic voltages.

The output VCAs are usefull to dial in subtle and time-based modulation without the need for external VCAs. For example, to modulate the amount over time with an envelope, or use the other generator with slower speeds to add random changes to the level of a random voltage.

Both generators also have two other outputs. One is an exact inversion of the main output, so it responds to the level and CV input. This is great for stereo or inversed effect patches. The other is a simple pulse output, here there are two different behaviours, channel A outputs a pulse at every random generation, channel B acts like a comparator. Whenever the main is positive this comparator output is a high gate. And whenever the main output is negative or close to 0, there is no gate output. Great for random triggers or firing other events like envelopes.

A couple other outputs are also available and are obtained by averaging both channel main outputs. The first output is the average while the second is an inverted average."

Tuesday, March 19, 2024

ADDAC System - ADDAC813 Stereo Mixer+

video upload by DANIELE

"ADDAC813 Stereo Mixer+5 features 5 stereo channels, 4 of them with attenuators, a mono send/return path for parallel processing plus stereo and mono outputs. Th mono send/return path allows for easy integration of mono effects in a stereo chain!"

0:00 Intro
0:08 Main features
0:30 Pre-fader mono effects loop
1:02 Granular freeze
1:17 Line or synth level
2:06 Mono filter on stereo drums
2:54 Mono filter on plucked strings
3:52 Mono distortion on stereo VCO

"ADDAC813 is a straight forward stereo mixer. Featuring 5 stereo channels, 4 of them with attenuators, a mono send/return path for parallel processing plus stereo and mono outputs

Four channels with stereo input and gain knob. Fifth channel with stereo input without gain knob, which are the prefered inputs to cascade several ADDAC813s when more channels are needed. Master Output controls the level of the Inputs mix. Two leds monitor the inputs mix.

Mono Send / Return return path allows for easy integration of mono effects in a stereo chain. Plug your favorite module through it (filter, bbd delay, spring reverb...) or any mono pedal.

The Return Gain works in parallel with the Master Output, just like regular wet / dry controls.
The send output can be configured to be line or synth level via a jumper in the back.

Stereo output sums the Inputs Mix with the Return signal.
The Mono output is the sum of Left and Right outputs

Effect Pedals
Using the send output at Line level, the user can connect the send output directly into mono effect pedals and have the pedals output connected directly into the return input without the need of an attenuator/amplifier module."

Thursday, January 18, 2024

NEW MODULE DAY | ADDAC System - ADDAC508 Swell Physics

video upload by DANIELE

"The ADDAC508 Swell Physics by ADDAC System is a CV generator based on the simulation of a physical system: ocean swells!

0:00 Intro
0:08 Design concept
0:56 Let's start
1:25 Unipolar and bipolar switch
1:39 Connecting the outputs
1:51 Swell size
2:42 Agitation
3:24 Spread
3:31 Mode A - scrolling
4:14 Mode B - evolving
4:52 Sim. speed
5:55 Output gain
6:05 Clipping the waveform
6:11 Clipping modes
6:18 Fold mode
6:31 Thru mode
6:50 Limit mode
7:14 Offset
7:29 Gate outputs
7:35 Gate 1 less than 2
7:50 Gate 3 greater than 4
8:18 Average output
8:53 Offset and output gain CV IN switch"

"Following our ADDC503 Marble Physics here is a new simulation of a physical system. This time imagine a small area in the middle of the ocean, in this area we place 4 equally spaced buoys anchored to the bottom in such a system that we can control the spacing between the buoys. Imagine we can control the elements and agitate the waters at will which in turn will make the buoys move up and down as the water surface moves.

Finally imagine the buoys would wirelessly transmit their absolute height directly to your module outputs where they would be mapped to a voltage signal.

We use a Gerstner Wave as the motor behind the two-dimensional wave generation. In fluid dynamics a Gerstner Wave is described as “a progressive wave of permanent form on the surface of an incompressible fluid of infinite depth”. Gerstner waves are often used in computer graphics to simulate any type of water surface, if you’ve seen any animation film or computer game with water surfaces in it most probably it features a Gerstner wave generating it."

Check with dealers on the right for availability.

Monday, January 15, 2024

Another Eurorack Drone January 15 2024

video upload by John L Rice

"Modules being used:
Vermona - meloDICER
Synth Tech - E352 Cloud Terrarium, E950 + E951 Circuit Bent VCO + expander
Happy Nerding - MMM VCF
BubbleSound - VCA4p
InstruĊ - [1]f
Erica Synths - Black Octasource
Mutable Instruments- Beads
Circuit Abbey - Unify
ADDAC - ADDAC812A Audio Meter

#modularsynth #eurorack #electronicmusic"

Sunday, January 14, 2024

Ambient Melodic Eurorack Drone January 14th 2024

video upload by John L Rice

"As usual I was making some changes and this is the post change test. Modules being used:
Vermona - meloDICER
Synth Tech - E352 Cloud Terrarium
Happy Nerding - MMM VCF, ADSR x 2, 3xMIA
BubbleSound - VCA4p
Rebel Technology - Stoicheia
Ladik - J-110 Derivator
Erica Synths - Black Octasource
Mutable Instruments- Beads
Circuit Abbey - Unify
ADDAC - ADDAC812A Audio Meter

#modularsynth #eurorack #electronicmusic"

Friday, January 05, 2024


video upload by DANIELE

"ADDAC309 CV to Expression allows a simple and straightforward connection between your modular synth and effects pedals that features expression pedal TRS inputs!"

"ADDAC309 CV to Expression allows a simple and straight forward connection between modular and effect pedals that features expression pedal TRS inputs.

Instead of using an expression pedal into the effects pedal the user can use this module in between a CV source and the Effects pedal to be controlled.
This is a great way to control the available parame- ters on the effects pedals straight from a CV source.

ADDAC309 features 2 channels each with a CV Input with attenuator and a 1/4’ jack output.

This is a passive module, the power needed for operation is taken from the pedal power instead of the modular frame, this allows for perfect matching of the pedal’s operating voltage which can range from 3.3v to 9v."

Sunday, December 24, 2023

Jam with ADDAC V112 VC Looper & Granular Processor, Joranalogue Filter 8

video upload by Sonic Circuitry

"Sonic Circuitry is a video series about all things audio, from engineering to mixing, from synths to guitars. Cool new stuff, weird old stuff and vice versa."

Friday, November 03, 2023

ADDAC 112 | Grainmakers Playlist

video upload by

"I may have unintentionally kept the best for last. The 112 combines a looper and granular engine in one big module. This is the last entry in the playlist.

The 112 will return soon for a dedicated video with some carefully selected samples to play with."

You can find the full Grainmakers Playlist here.

Monday, September 11, 2023

End of chain drum effects

video upload by John Schussler

"I recently got the ADDAC Vintage Clip, and have been playing with it as an end of chain drum mix treatment. I have a few other simple stereo distortions and filters and figured I'd listen to them as a group and see which I liked best in the role of 'final drum effect.'

It's not so much a fair comparison as...just a comparison. There are lots of other modules that could probably serve this purpose just as well, but these are what I have and wanted to listen to. So there you go.


Drums are an SSF Ultra Kick, Prok SN, Prok HH, and WMD Chimera. Sequencer is an Iron Ether Pithoprakta.

00:00 Intro
00:20 Vintage Clip
04:05 Twin Drive
09:24 Stereo Mix
16:34 Roucha Legio
21:34 nw2s D0"

Thursday, August 03, 2023

Eurorack cv presets - Traffic, Frames, Morphader, VC Transitions

video upload by John Schussler

"With the arrival of Traffic, a new module from Jasmine & Olive Trees, I find myself with several modules that do similar things around 'cv presets.'

The scenario I'm considering today is putting a single module (e.g. Basilimus Iteritas Alter from Noise Engineering) into different 'states' by simultaneously changing multiple cv inputs going to the module. This way you can get multiple 'instruments' out of a single module, in this case a variety of drums and percussion, which can then be sequenced.

There are other modules that do this as well (e.g. Endorphines Total Control), but these are the ones I happen to have. So, grain of salt and all that.

Sequencer is Pittsburgh Modular Micro Sequence. Clock source is Pam's Pro Workout.

00:00 Intro
00:20 Traffic
04:52 VC Transitions
09:08 Morphader
13:00 Plancks II"

Friday, July 28, 2023

Eurorack acid - TB 303 style modules

video upload by John Schussler

"If you listen to techno, you listen to the Roland TB-303. It's the sound of acid, and is such a unique sound that everybody wants and uses it.

Although several makers are selling clones in the original 303 design (with the sequencer and original layout), you may just want to get one in Eurorack without all the fuss of learning the 303 sequencer interface (it's not intuitive).

Here are a bunch of 303 modules that either include all the parts (VCF, VCA, envelope, accent, glide...the works) or just one part (the VCF, which is the most critical bit).

There are others as well, these are just the ones I happen to have...."

00:00 Intro
00:20 Hydronium
07:28 TB-EFA
13:56 Acid Source
24:14 Pico Acid
30:00 Doepfer A-103/120
46:16 Vult Freak

Tuesday, July 18, 2023

ADDAC System Introduces Michel Waiswisz's Cracklebox ADDAC708 Eurorack Module

Pics and details below via ADDAC System

[The video of an original Cracklebox box on ADDACs site was previously posted here back in 2009. You can find additional posts including demos of other designs of the Crackle Box here.]

Introducing a limited edition re-release of this iconic electronic instrument in a modular format.

This limited edition of 75 units is a tribute to the pioneering work of Dutch musician and instrument maker Michel Waiswisz (1949 - 2008), who first invented the Cracklebox with Geert Hamelberg in the late 1960s.

The Cracklebox was a small, handheld device designed as a way to explore new sonic territories. It was one of the first electronic musical instruments to use circuit bending techniques in the creation of electronic music. It allowed musicians to manipulate and control electronic circuits in real-time, creating a wide range of unique and experimental sounds. He used a circuit from a toy piano as the basis for the instrument, and then added a series of touch-sensitive pads that were connected to the circuit. When a player touched one of the pads, the circuit would be completed, producing a crackling sound.

The Cracklebox was probably the first commercialy available portable selfpowered alternative 'keyboard' analog electronic instrument with inbuilt loudspeaker.
In the 1970s about 4000 Crackleboxes were built and sold by STEIM in Amsterdam.

Nowadays many people refer to the The Cracklebox as the archetype of 'glitch' or 'circuit bending'.

In the decades since its invention, the Cracklebox has continued to be an important and influential instrument in the world of electronic music. It is still in use today, and is considered a classic example of the potential of electronic music to create unique and innovative sounds.

This Eurorack recreation includes a 9v battery, swappable through the frontpanel, this allows to isolate the current flowing through the user's fingers from the Eurorack frame PSU, protecting the user from undesired electrical shocks. We also removed the internal speaker and used a transformer instead to isolate the output signal.

The output generated can be used as an audio, as a gate or a cv signal, when using it as a cv source, due to the specific qualities of the signal, users may want to send it through other modules as slews, sample and holds, quantizers to tame/control it's peculiar cv output.

- The module features an on/off switch to turn off the 9v battery (remember to turn it off when you turn off your Eurorack system).
- A Power Starve knob, reduces the 9v voltage feeding the circuitry changing it's overall timbre/pitch
- An Output Gain knob to control the output volume.
- A Boost switch to add more presence to the signal.

Tech Specs:
5.5 cm deep
20mA +12V
20mA -12V
9v battery required

Tuesday, June 20, 2023

Music For Your AI - June 20th 2023

video upload by John L Rice

"Just four minutes of generative eurorack electronic music for you.

Synth Tech E352
Mutable Instruments Rings and Beads
Erica Synths Octasource
Vermona meloDICER
Circuit Abbey Unify
4ms Row Power 40"

Wednesday, March 22, 2023


video upload by DANIELE

"This mixer from ADDAC System is not your standard eurorack mixer: ADDAC713 is the stereo version of ADD703 Discrete Mixer, which is inspired by the Moog CP3. Plenty of saturation and a few cool added features!"

0:00 Intro
0:25 Input gain, master output, pan knob
1:16 Kick
1:28 Soft clipping switch
2:23 Feedback/gate knob

See this post for additional details on the ADDAC713

Thursday, February 23, 2023

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:"

Wednesday, February 08, 2023

IMAVAI #3 / trying out your requests / STEP 8 ODESSA / SED / ADDAC 601

video upload by BRiES

"In this I'll-make-a-video-about-it episode (I'm more and more starting to sound like a tv host) I patched up STEP 8 as an analog shift register for the 5 voices on Odessa (you need the Hel expander for that). I also run a few hot signals into the Rides In The Storm SED low pass filter to see how it behaves when it's being overdriven. The last patch is (not) a vocoder patch where I use half the tools you'd actually need to make a decent vocoder patch. Instead it just sounds interesting.

You can visit any of these links if you'd like to support my work

0:00 intro
0:06 STEP 8 (ASR) vs ODESSA
12:23 RITS SED filter
21:53 (not) a vocoder patch
31:51 thanks for watching!"

Monday, February 06, 2023

GLISS / 4MS ENSEMBLE OSCILLATOR / COSMIX PRO / eurorack generative jam

video upload by BRiES

"I started off this patch with some chords coming from the 4MS EnsOsc. Everything is sequenced and clocked by a couple of looping envelopes from Maths. I added a random (in scale) bassline, an arp (sequenced with Moskwa 2) and some vocal sounds (processed through an ADDAC 601). I'm using Orbit 3 and Filter 8 for modulation. Step 8, Soundforce DUAL LFO and Mimetic Digitalis are used for additional randomness. Herzlich Labs OMEN is 'pinging' LFOs used to modulate the sound of the chords. I used a lot of filters to shape the sounds so they don't clash too much. Cosmix Pro is handling most of the mix and I'm using the CV inputs on the stereo channels to create some extra stereo movement."

Tuesday, December 20, 2022

How to create complex bouncing ball simulations - with ADDAC 503 Marble Physics

video upload by Monotrail Tech Talk

"The ADDAC 503 Marble Physics is a module that simulates the behavior of a ball on a square plane. The plane can be tilted over two axes, and you can control things like the elasticity off the edge of the plane, and simulation speed. That sounds like fun, but in this video I also show how it can be used to create interesting patches, and control voltages."

Saturday, December 17, 2022


video upload by DANIELE

"ADDAC712 by ADDAC System is a dual channel discrete gain staging amplifier, based on a famous discrete preamp board from the 70’s used in some legendary equipment!

0:00 Intro
0:15 Gain and output knobs
0:20 Bypass switches
0:29 Using it together with ADDAC711
0:36 Adding character to a clean guitar sound
1:18 Max. Gain trimmers"

ADDAC712 is a dual channel discrete gain staging ampli- fier, based on a famous discrete preamp board from the 70’s used in some legendary equipment.
What caught our attention was the character of it’s clipping and resulting saturation/distortion.

The module can be used with modular signals to add a distortion/fuzz character or as a preamp for an external source such as a line source, keyboard, guitar...
It’s also a great side companion for our ADDAC711 Balanced Inputs.

At the top an On/Off [BYPASS] switch routes the signal into the Effect (Up: Active) or to the bottom output gain stage (Down: Bypassed).

The ammount of amplification is set by the [GAIN] control, the maximum ammount of amplification can be set by the user using the [MAX GAIN] trimmer.

Up to ±5.5v the incoming signal will keep it’s integrity, beyond this point saturation will start to increase.
At aprox. ±6v a hard clipping will start to occur, this clipping also has a particular quality that at extreme levels it drifts the audio 0v bias reference, moving it upwards which results are similar to a Gate effect.

In the middle, an x2 opamp based output gain stage with a clipping led, which monitors the clipping at the output, and an [OUTPUT] control to set the output volume.

Having the top and middle gain stages provides flexibili- ty allowing the user to completelly distort the signal on the top stage and tame it’s output level with the second stage.

At the bottom, Input and Output for both channels (Left input is normalled into Right input).

This module will also be available as a full DIY kit.

Tech Specs:
4 cm deep
40mA +12V
40mA -12V

Friday, December 16, 2022

NEW MODULE DAY | ADDAC System - ADDAC714 Vintage Clip

video upload by DANIELE

"ADDAC714 by ADDAC System is a dual channel soft clipping module with a symmetry switch for bipolar and positive clipping!

0:00 Intro
0:26 Bypass switches
0:36 Symmtry switches
0:59 Output knobs
1:31 Clipping drums
2:19 Clipping synth"

ADDAC714 is a dual channel soft clipping module.
Diode based passive clipping acts as a “brick wall” limiter with a fixed knee given by the inherent diode physics. A passive RC low pass circuit adds a 3.3KHz -3db low pass filter which sculpts the overall tone while also adding further character to the effect.

At the top an On/Off [BYPASS] switch routes the signal into the Effect (Up: Active) or to the bottom output gain stage (Down: Bypassed).

The ammount of clipping is set by the [GAIN] control, it mostly works as a threshold control for how much clipping will be applied.
As more clipping is applied the signal’s amplitude will also decrease, to compensate for this we set up a gain compensation stage to keep the output amplitude balanced across the Gain range.

Symmetry chooses between bipolar clipping or positive clipping, this relates to the harmonics generated, bipolar for odd and even harmonics (up position) and unipolar for odd harmonics only (down position).

At the second stage, an opamp based x2 output gain with a clipping led, which monitors the clipping at the output, and an [Output] control to set the output volume.

Having the top and middle gain stages provides flexibili- ty allowing the user to completelly distort the signal on the top stage and tame it’s output level with the second stage.

At the bottom, Input jacks for both channels (Left input is normalled into Right input) and output jacks

This module will also be available as a full DIY kit.

Tech Specs:
4 cm deep
40mA +12V
40mA -12V

Switched On Make Synthesizer Evolution Vintage Synthesizers Creating Sound Fundlementals of Synthesizer Programming Kraftwerk

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