If you have any questions or would like to purchase one of my pieces send me an email:
martinfreeman [at) frontiernet (dot] net
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A passive 3x3 Matrix Mixer. Great for putting feedback loops in yer feedback loops, distributing signals to multiple outputs, mixing and doing complex routing. Works with audio and control voltages.
$100 + shipping
Analog Voltage Controlled Percussion Synthesizer.
Based on the Coron DS8. It has a CV input for pitch. It can be triggered via the manual button or a voltage via the trigger input jack (contact mics, audio, click tracks, drum machines, etc). Feeding the audio output back into the CV input is the secret to good times.
SOLD, but these can be custom ordered.
http://soundcloud.com/martin-freem/drumsynth
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Three oscillators with fine tune controls and push button triggers.
Secret chaos mode accessed by plugging the patch cord halfway in…
http://soundcloud.com/martin-freem/3osctrigger
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I have a new batch of contact mics ready. New construction methods have made them even sturdier than before. Use them as drum triggers or to pick up the vibrations of almost any object.
$10 each or $90 for 10, plus shipping.
Email me for info on greater bulk discounts.
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One of the most controversial issues in synthesizer design historically has been how to control the damn things. There are touch interfaces, proximity sensors, MIDI/CV keyboards and a slew of other options.
Pictured (barely, that is. I could use a new camera.) is my new Control Voltage “Keyboard”. 4 “keys”, three of which are tunable via knobs, which can be momentary (pushbuttons) or latching (toggle switches). When more than one key is pressed the voltages are added. This means that different combinations of key pressings lead to 16 different output voltage possibilities.
There’s also an input so it can be used with external voltages or audio sources. The internal CV range is about zero to +9V, but if you send external voltages to the input jack the range is configurable to whatever you want.
These units will work with just about any gear with CV inputs including analog synths, moogerfoogers, future Repeater Electronics circuits, etc.
Here’s a long clip of me using it to control my modular synth in my trio with Pat Cain and TJ Borden: http://soundcloud.com/martin-freem/freeman-cain-borden
The pictured unit is my personal travel version (not for sale), but I can build these in any size or configuration. Prices will depend on size and complexity.
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I’ve been making lots of progress on the Guitar Synth. The PCB design is almost done. Only a few things left to add then it’s prototype time. Getting away from perfboard is a good feeling. The goal is to start cranking these out this Spring.
I leave you with some unbridled hatred from my modular synth:
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New Pedals!
I’ve begun work on the first Repeater Electronics effects pedal. It is a ‘guitar synthesizer’ with the ability to add extremely weird overtones and octave shift effects. It is not limited to guitar and will feature a preamp that allows it to be used with just about any audio source. There will be inputs to inject external CVs (control voltages) for both of the more sensitive parameters. To my knowledge there is nothing quite like it on the market. It will not make you sound like Al Di Meola. I am considering mailing one to him for an anti-endorsement. If you work for Mr. Meola please get in touch!
More details and sound clips forthcoming.
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I have parts for one more Ring Wasp Synth/Processor if anyone else wants one. This will be the last one for a while.
Next up is a chaotic guitar synth with CV options.
Pictured is a Digitech PDS 1002 delay pedal modified with a control voltage input for delay time (via the 1/8” jack in the picture). The mod uses a homemade vactrol. With the delay time knob fully counter clockwise the CV input has no effect. As you turn up the knob the external CV begins to affect the delay time.
http://soundcloud.com/martin-freem/pds1002vactrolnr
In this clip the delay time is being modified by my Wiard Noisering synth module (Random Voltage/Sequencer). The sound source is a squarewave drone. All of the pitch changes are done via CV control of the delay time.
Almost any piece of equipment can be modified with this type of CV control. If you’re interested in adding CV inputs to something of yours, shoot me an email.
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Great stocking buster for the noise/drone enthusiast or plain old weirdo in your life.
Sounds: http://soundcloud.com/martin-freem/dronebox
Features:
2 oscillators
1 starve control (modifies the timbre of the oscillators)
1 volume control
1 button to trigger the sound
Sold
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