The MiniBrute (MB) is an affordable analogue mono-synth which offers several Control Voltages (CVs) for use with modular synth systems. As standard you get:
Main audio out
This is amazing for a synth of this price but inside the MB lurk many more useful CVs! Opening up the synth you will see there are many test points, these are all numbered and will make the task of modifying your MB a piece of cake.
I spent the last week poking around with a osciloscope and discovered lots of useful CV signals and waveforms just waiting to zip in to a modular system. Here is what i found:
Power (small board middle, ground main board lower left)
PT720 / PT 605 3.3v
PT175 Ground – there are loads of ground points to choose from, try and stick with one though.
Envelopes (large board upper left)
PT105 Filter Envelope
PT112 Volume Envelope
LFOs (large board lower middle – these all respond to tempo and are MIDI beatclockable!)
PT59 Random Steps
PT58 Smooth Steps
Oscillators (large board mid right – respond to pitch)
PT158 Sub (square or sine as selected on MB panel)
PT22 Triangle (+metaliser if activated)
PT19 Triangle (clean)
PT20 Saw (the modulating wave for this is PT65)
PT151 some kind of folded triangle ( |\/|/\| )
Clocks (large board bottom left)
PT136 Clock out
PT145 Clock in (see special tap emulation circuit)
Modulation (small board bottom right)
PT656 After Touch
PT655 Mod Wheel
PT654 Pitch Bend
there is a thread about the mods on Muffwiggler
And I’ve uploaded fairly comprehensive mod instructions here MegaBrute Leafcutter Mods 03.pdf
Playing with a chaotic patch built around the doepfer ‘chaos patch’ found here http://www.doepfer.de/a100_man/a100_patch.htm
The idea was to get to know some of my modules better and to try and emulate a couple of real-world sounds. I limited myself to 15 mins per patch so they are not perfect but I had a lot of fun and found out a lot about my system – like how much I love the A-199 spring.
In no particular order….
Signal source is a Modcan FMVDO supported by a 110 sawtooth and frequency divided square wave (thanks a-163). Also present the ring mod output of the MFB 0sc-02. FMVDO goes through make noise MMG and the other stuff through a 101-2 LPG. Notes thanks to Turing Machine quantised via A-156. A-199 reverb and a little Dub Jr delay on the FMVDO and the other waves dry
Signal source is an A-106-6 filter on the verge of oscillation, pinged by random gates from 1-149-1 expander. Random pitches from 1-149-1 distribution output. Some drops have a pitch bend env generated by MFB dual ADSR. A-199 reverb and a little Dub Jr delay
Rock Guitar Freakout, (Thurston Moore Simulator)
Basic patch is Piston Honda into A-199 Spring reverb, with PH wavetable modulation. Pitches come from A-149-1. There is a little Dub Jr delay which is randomly faded in but I like the reverb sound better.
This is a work in progress but I thought it might be interesting to some of you. The Max/MSP patch below tracks the price of gold between 1957-2013 and uses the data to control parameters of an algorithmic composition.
It’s a mess but it works!
Here is the price of gold between 1957-2013 expressed as an audio wave
You can clearly see it’s general upward trajectory, it’s a bit like a upwards ramp but with lots of extra harmonic content. This waveform is used for much of the percussion in the piece which you can hear below….
Hi, I’ve been beavering away in the LeafyLab making good progress on my light controlled musical interface:
Coming up this month:
Nov 16th, Jazz on 3 BBC radio recording FREE – Cafe oto, London, Doors 2pm
Nov 24th, Old Cholmeley Boys Club, Dalston, London £6/£5, Doors 8pm
Nov 25th, Converse Hack Workshop, Hoxton, London. It’s oversubscribed already but you can register to join us online!
Nov 28th, Haus der Kulturen der Welt, Berlin w/Talvin Singh and others, 10€/8€, Festivalpass 30€, 8pm INFO
I’m starting to get into the swing of things, body clock is still very confused but the vibe of the city is such that it carries you along on it’s noisy, smoky, hyper-alive wake. I spent several hours walking around recording and taking photographs with Richard today. And when stepping off the street and into the calm of my hotel I keep noticing that my body is actually vibrating such is the excitement of the city.
I was teaching recently and one of my students had a patch with lots of effects in it. They were all routed to a central matrix~ object. It was really powerful but let down by the fact that controlling the matrix~ can be quite confusing esp when performing live. Personally I don’t like having to think in rows and columns when I just want to put the delay after the gate instead of before it.
This is the solution I came up with in Max/MSP, Have a look at Mr Matrix in action…
Lots of fun, I really wish I could do this in Logic Pro!
If you don’t have Max/MSP you can still play with Mr Matrix by installing Max/MSP runtime. Just make sure you put the Mr Matrix folder within the runtime patches folder!
Mr Matrix by Leafcutter John is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License.
Based on a work at http://cycling74.com/toolbox/mr-matrix-draggable-fx-routing-system/.
CMOS Synth I’m in the process of designing and building at the moment.
"Hi, I'm a professional BeDazzler"
Special Cafe Oto Show Tuesday 4th June, read it here: http://t.co/lPSjprwAIB
@dangusset I have no idea.
Total blast from the past, a 2005 remix I'd completely forgotten about just turned up on youtube. http://t.co/ZgzRZ5LWIn
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