Sunday, July 23, 2017

Transistor-80 Analog Percussion Module Eurorack Demo #1

The Transistor-80 is an analog percussion module I designed as a lo-fi incarnation of those transistor-based CR- DR- and TRs from the circa 1980 era. It is thump-y, hiss-y, and it has those click-y pops and bacon sizzle sounds. Sports 3 sounds: Bass Drum, Snare Drum, and Hats. Bass has a tone control that controls the amount of sub frequency (you may hear a slight boom if you're wearing headphones) the other two sounds have decay controls. It has individual volume knobs for each sound, and a single output jack for the mix. In this video I am feeding trigger gates from the Malekko Varigate 4, and recording output directly to Tascam DR-5.

If you're interested in hearing more check out a track on Soundcloud I made using the Transistor-80.

More modules will be built completely by hand in small numbers, including PCB and face plate. Further details and availability can be found on Modular Grid

Monday, July 10, 2017

Korg MS-20 Teardown: Pulse Width Modulation Install

The vintage Korg MS-20 monophonic synthesizer comes with a pulse width knob, but no way to patch a modulation to it. In this video I teardown the MS-20, and install a Pulse Width Modulation routing.

My PWM will come from the MG/T.Ext circuit that is already present on the synth. 90% of the time I want to use the MG, AKA the LFO, to modulate the Pulse Width. So all I will do is add a small pot and current limiting resistor for routing the MG/Total circuit to the Pulse Width.

What about the other 10% of the time I don't want MG going to PWM? Well the MG is only normalled to the Total/External jack. If something is patched into the Total jack, it will override the MG and be routed to the new PWM pot. It behaves exactly the same way as the MG/Total pots for Pitch/HPF/LPF. Pretty sweet.

At the end of the video I patch various things to modulate the Pulse Width. Stay safe, don't electrocute yourself, and be sure to unplug the synth at all times while doing work inside the unit.

Wednesday, July 5, 2017

Analog Drums Development Prototype

I've been developing a eurorack analog drum kit for some time. It's inspired by the sound of simple machines like the Boss DR-110 and the Roland TR-606. It's a basic kit made of of Bass Drum, Snare Drum, and Hi-Hat. The Hi-hat has a choke gate, so it can behave open/closed using a single voice just like a real drum kit. All 3 voices summed to a single output. It will have controls for independent voice levels, bass drum tone, snare decay and hat decay. I think you will want kill switches for all incoming gates as well. I am looking into how to integrate an accent trigger pulse as well.

In this video I audition some sounds using the Beatstep Pro as a clock, Varigate 4 for the gates, and nothing else. I didn't use a digital recorder this time, I'll save that for when the module is completed.
I added a quick soundcloud demo

Friday, June 30, 2017

Basimilus x Disting x Juno-1 x Synth Box x JV-2080

In this video the Eurorack is patched for a noir future tech workout. Think Blade Runner meets Air Liquide meets Blue Room Project. Basimilus and Disting team up for filthy glitch beat detail under command of the Varigate 4. Then darkened up by the JP-6 VCF. Disting is loaded w/ TR-606 sounds, but mangled by pitch modulation. Bastl Little Nerd is spitting out gates in all directions. Pittsburgh Modular Synthbox simmers a nice PWM bass pad. Ere there be JV-2080 Mellotron Choir getting the chop-chop from Bastl Skis. Soaring leads and swells are the Juno-1, my Aurora Pad 1 patch. Timefactor Delay on the Juno-1. Mixed on a Mackie 802-VLZ3, recorded direct to Tascam DR-05.

Thursday, June 29, 2017

Infusor Eurorack Mixer Module

Infusor is a 6-input, Stereo output mixer module. It's loosely based on the MFOS simple mixer w/ some revisions. How did this come about? I'm currently adding a row in my euro case for percussion modules. I like the idea of putting my own 'drum machine' together from various bits and needed a way to sub-mix, say, four of them together - plus an outboard drum machine like TR-8 - without eating up all my desktop mixer inputs. Currently waiting on the trimpots to arrive. I plan on making one to sell. Depending on how that goes I could make a few more in limited quantity. For more info

Saturday, June 24, 2017

First Go w/ Basimilus Iteritas Alter Eurorack Module

The Basimilus Iteritas Alter module by Noise Engineering just arrived. It's an aggressive percussion/voice module, and it's intense. I'm starting a row of percussion modules in my rack and felt this would start it off with a nice edge.

In this demo I turn out the BIA in a full frenzy of CVs and triggers from Varigate 4, S/H from Pittsburgh Modular Toolbox, a couple of Attack/Release envelopes. Getting some help from the 4MS Rotating Clock Divider. There's other tutorial vids out there, just wanted to show the module in the extreme going full throttle. Not for the squeamish or faint - you've been warned.

My assessment: this thing is SICK! and has a tendency to take over the whole mix if you allow. I will probably take things down a notch or two when making my patches - just so there will be room to bring in other elements. I love this thing, and it takes fun to a whole new extreme.

Wednesday, June 21, 2017

Acid Tech House MS-20 Juno-1 Eurorack Modular [Heavy Duty]

In this video I jam the MS-20 going through the DBX 160A on kick, Juno-1 on synth sequence and eurorack modular for all else. That kick! I tweak the MS-20 release time for those massive booms and Env2 to LP amount for more crunch. I'm pretty happy w/ those hats too - hats were synthesized using DNA Symbiotic Waves and Deflector Shield Ring Mod. The cracking snare is coming from a Disting sample of the Linndrum clap, with the initial transient clipped off. Bass is a square wave from the Synth Box going through the JP-6 VCF module. Juno-1 uses the classic factory patch 1-1 PolySynth1, has some Timefactor delay. Beatstep Pro sequences the kick, bass + synth. Varigate 4 + sequential switch + Little Nerd gates other percussion. Mixed on a Mackie 802-VLZ recorded direct to Tascam DR-5.

Thursday, June 15, 2017

Linndrum Classic Drum Machine Quick Demo

This Linndrum w/ JL Cooper MIDI is currently for sale on Reverb. In this video I do a quick run through of the sounds on this Linndrum. First a quick overview, then single drum sounds, then some fun drum pattern programming.

Monday, June 12, 2017

Funky Eurorack Synthesizer Improv

In this video I do some funky stuff. I sampled Linndrum sounds into the Disting MK3. Of course the drum triggers are all f*** up. But also feeding clouds w/ a Jazz Rhodes sound from the JV-2080. I noticed the sequenced bassline would track (transpose) whatever I was doing on the Jazz Rhodes. So I went a full on funky improv.

Friday, June 9, 2017

Eurorack Synthesizer Jam Mutable Rings + Roland TR-606 [Fracture]

In this video I jam on the Eurorack, a bit of chill electro house.
Arpeggios: Mutable Instruments Rings to JP-6 Filter BP Mode + Timefactor delay
Drums: Roland TR-606 + small amount of Big Sky Room reverb
Bass: Pittsburgh Modular Synthesizer Box
Sequencer: Arturia Beatstep Pro
Mixer: Mackie 802-VLZ3
Recorded direct to Tascam DR-05