Monday, April 24, 2017
The Oberheim Matrix-12 was cooperating today, so I thought I better make a video before something happens again. Using some reverb and delay, recorded direct and no audio post processing.
Monday, April 10, 2017
Rolling out some new patches for the Juno-1/2 available on my download post for this blog. A full bank of patches including the sounds from Demo #1. In this video I have selected a few of my personal favorites: bass, arpeggios, and soundscapes/pads. There are copious amounts of Big Sky reverb, a couple of sounds use the Timefactor delay. Basses don't usually need anything. Sounds were programmed using the indispensable Stereoping synth controller, also used briefly in this demo. Recorded direct through a Mackie 802-VLZ mixer to a Tascam DR-05.
0:00 Cloud Bank
0:56 Aurora Pad 2
1:14 Bass Arp 01
2:14 Mod Bass
2:25 Juno Crush
2:37 Alpha Synth
2:51 Micro Fab
3:24 Bass Pedalr
3:35 Mono Bass
4:10 Synth Mutes
4:25 Fake Wurli
6:07 Psycho Sweep
6:32 Pure Space
Tuesday, April 4, 2017
Designing a module such as this has its challenges. Things happen when you are designing a module on your own, and building it with your own two hands. Just last week I thought the project was dead in the water. But I persevered once more. I have risked everything, all my cards are on the table. The DRE4MTR4CK has been my labor of love for over 2 months in the making. With hard work, persistence, and steady dedication the DRE4MTR4CK is now a reality. An organic melody progression sequencer, with polyrhythmic capability.
Performance using evolving chord changes with my custom DRE4MTR4CK Euro module. It has 4 independent tracks of polyphonic pitch control:
Track 1: Pittsburgh Synth Box, internal filter
Track 2: DNA Symbiotic Waves, JP-6 Filter clone
Track 3: Disting MK3, Doepfer SEM filter
Track 4: Rings, no filter.
Clocking direct to envelopes, triggering pitch changes manually. Track 1 pitch CV is going through a PM Toolbox slew limiter. Mix is going to Timefactor delay. Recorded direct through a Mackie 802 to a Tascam DR-05.
Sunday, April 2, 2017
The DRE4MTR4CK is a simple and intuitive Pitch CV sequencer. It has 4 steps, and it has 4 Individual tracks. Each track has its own clock input, clock output, and Pitch CV output. In this way, it can behave like 4 completely independent sequencers.
In this video I show how to use the DRE4MTR4CK in more detail.
1:23 Installation Options
Correction: the graphics say -5v when it should say +5v (positive 5v).
3:06 Boot-Up Defaults
3:32 Connections and Operations
DRE4MTR4CK is a custom module built by hand. Full specs available on my previous post.
Monday, March 20, 2017
The DRE4MTR4CK is my custom Eurorack module that has been two months in development. DRE4MTR4CK is a simple and intuitive Polyrhythmic Organic Melody Progression Sequencer in a mere 12HP.
It has 4 independent, externally clocked tracks with 4 steps each. Each track sends pitch CV to one of your VCO modules. With external clocking, you decide if timing is slow and dreamy, bouncy and up-tempo, or all out fury going into audio rates.
Unused clock inputs are multiples from input 1. Clocking can be interrupted for a track by inserting a floating patchcord. Manually trigger a track step using the TRIG buttons. Intuitively build evolving chords or poly-rhythmic note progressions.
Simple pattern modes and Octave transpose for each track provide seemingly endless note progression. Mix things up with Step reset and track data Rotate to re-circulate CVs among your VCOs. 16 memories are provided for program note data storage. Recall of programs during performance provides changes in melodic or chord structures on-the-fly.
***** SPECS ******
4-steps per track
Chromatic Scale Note Quantization
4x4 LED Matrix
EACH TRACK has
- 1 external clock input.
- 1 duplicated, unbuffered clock out signal for clocking other devices
- Independent Pattern selection: Forward/Reverse/Forward-Reverse/ZIGZAG
- pitch CV output 1v/oct over 5v range
- Octave Transpose +/- 2 octaves selection
- Store/Recall 16 non-volitile memories in EEPROM
- Note programming on a per-step basis
Clocking Behaviour Options
- Unused clock inputs are duplicated from input #1
- Interrupt clocking by inserting a floating patchcord
- Manual trigger sent to clock out using the TRIG buttons
- 1 Data Pot
- 12 Momentary Buttons
- 16 LEDs
Memory and Processing
- 16 non-volatile memories in EEPROM for note data
- Processing Speed: 20MHz
INPUT 1/8" MINIJACKS
- 4 clock inputs
- 1 control input for RESET
- 1 control input for ROTATE
OUTPUT 1/8" MINIJACKS
- 4 unbuffered clock outputs (multed from inputs) + manual trigger
- 4 buffered 1V/oct pitch CV outputs, each 0-5v
Internal Clocking: none
External Clocking: 4 inputs
SIZE: 12 HP (60.60mm) Eurorack format, 3U high
Accepts standard keyed 2x8 (16-pin) eurorack ribbon cable (included)
- Option #1. (default) uses 5v input from your system power supply (if provided)
- Option #2. Draws power from +12v line. Requires Maxim Integrated
700-REF02CP 5v regulator (sold separately)
MEASURED CURRENT DRAW
Option #1 (default): 5v from Euro Power
+12v @ 3 mA
-12v @ 3 mA
+5v @ 103 mA Peak, 5 mA typical
Option #2: 5v from REF02 chip
+12v @ 64 mA Peak, 8 mA typical
-12v @ 3 mA
The DRE4MTR4CK module has no affiliation with any persons with similar name.
Sunday, March 19, 2017
This track is called Day DRE4M In Electric Space, video is a teaser of a Eurorack module that I designed. The module is in the top row obscured by other things, where a bundle of patch cords are going. I am using a Timefactor delay also in this one. Recorded direct to Tascam DR-05.
Tuesday, March 7, 2017
For the past two months I have been designing something mysterious and interesting. In this somewhat misleading teaser video I am tweaking its extreme aspects, a series of acid tests meant to discover its limits. The design intent is quite different from what you see here. It will still do these things if that's the sort of things you are into. I hope to have more to show very soon. Stay tuned.
Monday, February 27, 2017
Tuesday, February 21, 2017
Just kick back and enjoy these wicked analog multi-mode filter sounds. Lots of little sweet spots on this filter, if you skip around you might miss something really good. It definitely has that Roland sound.
Today I am demonstrating the Jupiter-6 filter clone I just finished building. See demo #1 for all the details. Basically the circuits and chips are the same as demo 1 breadboard test, just now they are stuffed into a 10HP eurorack module w/ some illuminated sliders.