Demonstration of the Erthenvar Patch Chord Eurorack module
Demonstration of the Erthenvar Patch Chord Eurorack module available at erthenvar.com. Functionally, the module is somewhere between an oscillator and a waveshaper – and also can be described as a bank of two octaves of oscillator controlled oscillators
The Erthenvar Patch Chord is a bank of 25 “Oscillator Controlled Oscillators”, which can be used to generate chords in a Eurorack system.
The Patch Chord continously samples the cycle duration and duty cycle of the input waveform. It outputs 12 semitone steps above the input note, 12 semitone steps below the input note, and the root note itself (available from two output jacks). All outputs are pulse waveforms with continuously variable pulse width.
An oversized tri-color LED spans the color spectrum in each octave, so each note has a unique color! The input jack is passively multipled to an output jack so the visual effects of the LED can be had even if the module is not part of the current patch.
There four modulation types available, each with an input jack and a three-position switch. The switch can turn off the modulation, allow the CV value to control the parameter, or turn on the modulation. The modulation jacks are all DC coupled and respond to audio rate signals, though the tracked waveform has a lower limit of around 20 seconds per cycle.
- The SQR modulation forces the tracked duty cycle to 50%, making all of the 25 outputs into square waves
- The INT modulation changes the relationship between each output from a semitone step to an integer or harmonic step
- The ZERO modulation resets all of the output counters to 0, similar to a sync function
- The HOLD modulation stops tracking the input and keeps the last counted cycle duration and duty cycle values
4ms – PEG Quadratic Beats
Patch using two 4ms Pingable Envelope Generators. This was an experiment to see what rhythmic possibilities are possible using only two PEGs synced to the same LFO clock. This same clock also was controlling one MakeNoise Brains, and two pressure points. The output of the Pressures Points was CV controlling the PEG’s divided time divisions making some cool repeating glitchy effects.
Note: no drum machines or computers used here 
FLAME CHORD MACHINE
Apart from some weird sounds, the Flame Chord Machine performance really awesome in this video. Here’s the background data:
Flame CHORD MACHINE test run
4ms Peg CM arp speed
Malekko 4x uncle chord out 4x anti arp out
Analogue Systems RS 110 RS 170 Multiple
Make Noise René CM Pitch in
Maths Moddemix QMMG Wogglebug
TipTop Audio Z 8000 CM chord in
Toppobrillo Sportmodulator
Doepfer A 134 pan by Moog MP 201
2x A 170 2x A171 chord slide
Noise by Flame Talking Synth Module
Master Clock Logic via Kenton Pro 2000II and 4 MS RCD
thanks Per Salzwedel & Flame
AudioGL Video 3 – Modular Software Synthesizer and Sequencer
This is a very cool demo of the AudioGL modular, check it out
Another update on the AudioGL project. This video features a crowdfunding announcement, and a software demonstration.
Crowdfunding Campaign:
http://www.audiogl.com
or
http://www.indiegogo.com/AudioGL-Crowdfunding-Campaign
Background information:
AudioGL is a Modular Software Synthesizer and Sequencer. It is designed to allow musicians to create complex compositions with ease. AudioGL has a dynamic 3D interface which focuses on streamlining workflow, so composers can spend less time navigating the interface, and more time writing music.
Here are the specifications of the computer I have been using to develop AudioGL
Make/Model: Lenovo X61 Tablet
Processor: Intel Core 2 Duo 1.8ghz
Graphics: Intel X3100 (low quality integrated graphics card)
Audio: M-Audio Fasttrack Pro & ASIO4All
Display: 1024×768 (Laptop) – 1280×1024 (External)
As you can see, AudioGL does not require a high performance computer. If your system specifications are close to or higher than mine, AudioGL should run just fine for you.
Although the interface is rendered in 3D, it does not consume any more resources than a typical 2D interface. Furthermore, the graphical quality of the interface can be raised or lowered, depending upon your preferences.
The synthesizer is designed towards low CPU usage without compromising sound quality. To provide both, the instruments you create in AudioGL will only consume CPU when they are playing. This makes it possible to create a large composition on an underpowered laptop, provided that you only have so many instruments playing at one point in time.
Serge Modular ADSR pitch modulation
Serge Modular synthesizer doing crazy pitch slides and controlling a Moog Voyager through CV.
Pittsburgh Modular Oscillator Introduction Video
http://pittsburghmodular.com/oscillator/
A wide range, high quality, 8hp eurorack utility VCO. It offers a full compliment of standard waveforms including Sine, Triangle, Saw, and Pulse waves. The Oscillator offers 5 octaves of 1 volt per octave tracking, and a frequency range starting as low as 7 seconds per cycle, allowing it to double as an LFO. Additional features include oscillator reset for hard syncing, attenuated linear FM input, pulse width, and pulse width CV input.
Buchla Electronic Musical Instruments Skylab Synthesizer and Press Conference
Synthesizer pioneer Don Buchla is back, under the aegis of a new company – Buchla Electronic Musical Instruments. This video shows the press conference introducing the new company, as well as provides information about Buchla’s latest products, the Skylab synthesizer.
Modular – klang system
And here are the details of this modular experiment called – Klang System:
Roland System 100
Sequencer Oberheim Cyclone
Drums Clavia ddrum4se Simmons ClapTrap Nord Modular Vocoder Boss DR 770
Kenton Pro 2000 II for Roland System 101 & 102
Moog MP 201 Midi LFO via CP 251 to System 100
Logic Master
KOMA KOMMANDER – NAMM’12 TEASER
This is not to be confused with the KOMA in the previous post below – this is modular focused stuff
KOMA Elektronik will present a new product for modular synthesizers and other CV accepting devices at NAMM’12. We call it the KOMMANDER.. Do you have any idea what it is? We think you do…
Also at NAMM’12: our modular effect pedals BD101 and FT201! Come and check ‘m out!
For more updates: follow us on http://www.facebook.com/KOMAelektronik and http://www.koma-elektronik.com.
NAMM teaser – Pittsburgh Modular Filter Demo
Teaser demo of the upcoming Pittsburgh Modular Filter. More info is available at www.PittsburghModular.com
More info:
The Filter is a voltage controlled, analog, state variable filter designed by Pittsburgh native and electronics experimenter Michael Johnsen. The state variable topology was chosen because it allowed us to produce a very smooth and natural sounding filter, in addition to offering several other modes of operation, each with a unique sound and energy all their own.
There Is No Sweet Spot
This Filter defines the sound of Pittsburgh Modular. It offers a warm, organic sweep through the full frequency range. The lowpass filter is gummy and relaxed while the highpass is clean and defined. The goal was to produce a filter that did not have a sweet spot; where the every turn of the frequency knob produced something interesting.
View the Filter product page.
DATAMASKIN
