CatSynth video: Circuit Bent Cyber Cat by freeform delusion

Cyber Cat – rehoused McDonalds toy – it doesn’t say a lot but I just had to circuit bend it!

switched mono 1/4inch jack output
Momentary button to trigger each sound
Pitch Up/Down Control
Warp switch

.fd. online
Facebook – freeform delusion
Twitter – https://twitter.com/freeformd
eBay – Search for – Circuit Bent
My older Circuit Bending channel – http://youtube.com/eecouk

Also on matrixsynth.

Note: if you want to bid on this, you might find yourself going up against me 🙂

Report from BPOW!!! Part 1: The Workshops

It’s been a little over a week since the Battery Powered Orchestra Workshop (BPOW!!!) occurred in Portland. Today we look back at the workshops, which were in many ways the central components of weekend.

During the Saturday morning session, I attended a workshop on electronic textiles hosted by Cat Poole of Cacophonous Creations. The skill was to learn how to use conductive thread to embed both light and controls into clothing for future performances. But for the workshop, the task was to simply sew an LED and its associated circuit onto a dinosaur patch:

BPOW electronic textiles

Of course, we at CatSynth approve of Cacophonous Creations’ chat noir logo! As for the task itself, the biggest challenges related to general sewing and laying out elements to properly fit (at least for someone with little sewing experience beyond repairing buttons). But I got through the threading of the circuit. It would be great to incorporate something like this into costuming for future performances.

In the afternoon, I attended a session presented by Steve Harmon of Synthrotek. It centered around DIY electronics and the ubiquitous 555 integrated circuit. But that then merely building an Atari Punk Console with a 555, we stepped it up with Synthrotek’s 4093 NAND Synthesizer.

4093 NAND Synth kit

The 4093 includes three square waves, based on a dual 556 integrated circuit. I was quite intent to complete it and be able to use it for my performance that evening. The soldering of the components went quite smoothly – it helps to both see other people soldering and to have access to a good iron. It was a quite a rewarding moment when the synth was complete and making sound.

Completed 4093 NAND Synth

My only disappointment was the pots not quite fitting and ending up a bit lopsided. But it worked great in the performance and will certainly be used again in the future. The additional confidence on soldering will also be valuable for future projects.

Additional workshops in the afternoon included an introduction and demonstration of modular synthesizers by Jeph Nor. He demystified modular for a general audience by presenting the fundaments (oscillators, filters, amplifiers) and adding additional elements.

Jeph Nor analog modular demo
[Image from the BPOW Facebook page.]

Attending all the workshops on Saturday would have been impossible, especially if one wanted to complete the associated tasks. In particular, I was also interested in the Raspberry Pi which was presented by Edward Sharp.


Sunday’s workshop sessions opened with a demonstration of “squishy circuits”. It turns out that homemade play-doh is quite a good conductor of electricity, and can be used to quickly prototype circuit ideas. It also serves as a very accessible medium for introducing principles of electronics to children.

squishy_circuits_c

We also got to see other non-traditional conductive media including ink and paint that can be used to integrate electronics into artwork without the use of wires.

conductive_ink_c

Then everyone scattered for an electronics scavenger hunt to find electronic toys and various media to use in projects during the afternoon. The participants reconvened later in the day and got to work.

hard_at_work_c

Our host Travis Feldman of Molecule Synth hacked the interior of an Atari console with both audio and video modifications, attaching it to a Moog pedal.

Hacked Atari console

Other creations included a circuit-bent toy keytar and a tactile surface used to control audio and video on a laptop.

Overall, the workshops at BPOW were a rewarding experience. In addition to new inspiration and a few new skills, I liked seeing the wide variety of interests and disciplines that others brought to creative DIY electronics for music, video and performance art. If the event does recur next year, it will be interesting to see how technologies and the skills of participants have further evolved.

In addition to the workshops, BPOW also featured performances in the evening. We will look at those in a subsequent article.

December 1 Electronic Music at the Luggage Store Gallery, San Francisco

The December 1 show at the Luggage Store Gallery in San Francisco marked my official curatorial debut for the long-running Outsound Presents’ series. The show featured three solo performances with electronics, all very different in terms of musical style and technologies. But while all featured and celebrated different facets of electronic-music technology, there were strong connections to the acoustic and natural environment.

The evening opened with a set by Headboggle (aka Derek Gedalecia) with an array of analog electronics, including a Blippo Box. The sounds and possibilities of analog electronics were paired sounds of nature as recorded in the Yosemite Valley. The music began with a rhythmic pattern of high-pitched sounds against longer machine noises and clear presentation of the nature recordings. Gradually, the two sonic strains collided and mixed together.

As with previous Headboggle performances (such as the set at the 2010 Outsound Music Summit), this one was full of energy and stage theater, with head banging, dropping of the stage furniture, and even a moment where he tossed shakers down the Luggage Store Gallery’s stairwell. The music also became more dramatic and percussive, with more glitches, percussive hits and bursts of noise, but all set against the continuing presence of the nature sounds. The harsher electronic sounds gave way to a more rarefied tone over time, with longer periods of harmonic oscillator sounds fading into a quieter single tone. After another percussive period that included lifting and dropping the table holding the care, the environmental sounds took center stage. Between the stereo speakers and the acoustics of the gallery, the leaves and other sounds were strongly spatialized and felt present.

Thea Farhadian followed with a set for violin and computer running Max/MSP. In some sections of her performance, the violin was more of a traditional chamber-music instrument, with its familiar timbres augmented by electronic samples and processing. In others, it was more of a controller, with pizzicato notes triggering long runs of notes from the computer or other purely electronic events. The set started out with solo violin, with the electronics emerging slowly like the orchestra in a concerto. The music continued to unfold as interplay between the violin and electronics. As the texture changed to more pizzicato notes with electronic responses of backward tones, the music grew more anxious, channeling the anxious moments of countless films. I also was reminded of works by Penderecki and Xenakis. A large barrage of electronic pizzicato sounds started to take on a drone-like quality with its density. In both the melodic and percussive sections, the music was harmonically a very strong, a brought in electronic orchestration that suggestion the presence of a cello or bass off stage. Other effects included fast glissandi and electronic pitch changes such as one might achieve by changing the speed of a tape.

Farhadian’s performance was divided into a series of short movements, and some had very different character. In one, short pizzicato notes on the violin acted as triggered for long runs of electronic notes and processing, with various speed, pitch and timbral changes applied. In another, a very lyrical string melody was set against fluttering sounds and dramatic low tones. In yet another, she used “prepared violin”, with bits of foil and other items placed against the strings for percussive effects. The electronic accompaniment was equally scratchy and inharmonic. And in one of the final sections, repeated rhythmic phrases and echoes perfectly aligned.

The final set featured Later Days (aka Wayne Jackson) with a variety of circuit-bent instruments, acoustic and electronic noisemakers, and a laptop running his custom Cambrian Suite audio softsynth with both hand-designed and algorithmically evolved patches. If Farhadian’s performance was all about software-based manipulation and Headboggle was focused on analog hardware, Later Days combined both.

The space was quickly filled with an ocean of electronic sounds, glitches, bleeps, rumbles, short loops and echoes. At one point, everything became extremely quiet, with a few lo-fi distortion sounds and high squeaky analog sounds. The new sampling and looping capabilities of the software were showcased with repeated loops of circuit-bent sounds, a solo on a photo-sensitive oscillator, a car horn and recordings from a microphone dangled out the window onto busy Market Street. The loops built up to a frenzy and the slowed down to almost nothing. The sounds picked up again in pitch and energy, with feedback loops providing an edgy and unpredictable quality. A metallic rhythm emerged, and the faded a single feedback loop. A flurry of “little loud bits” formed an odd harmony of their own. After a series of machine-like noises and a more elemental wind-like sound, the music slowed down once again and came to a watery end.

Over all it was a great concert with a rich variety of music. Indeed, the three artists fit together sequentially even better than I had anticipated. And fortunately, the logistics and technical requirements (e.g., soundchecking) were not that challenging, so I was able to enjoy the show along with the audience.

CatSynth video: circuit bent doomsday device analog synth

From SuperRoss007 on YouTube, via matrixsynth:

Warning: the sound from this circuit-bent device is quite loud and high-pitched. But the cat seems quite nonchalant about the whole thing, casually cleaning herself/himself during the performance.

Luna is a bit like that as well when I fire up even the more esoteric musical gear.

μHausen at Camp Happy

This morning I look back to μHausen (micro-Hausen) at Camp Happy in the Santa Cruz mountains. It was really a “tiny festival within a tiny festival”, as we took over Sunday afternoon with our esoteric and (mostly) electronic music.

I brought a relatively compact and self-contained setup:

[click to enlarge image]

A few “greatest hits”, such as the Evolver which I mix with live performance on prayer bowl; the monome controlling Max/MSP on the MacBook for live sampling and looping of Indian and Chinese folk instruments; the “trusty Kaoss Pad”; the iPhone running the Smule Ocarina (which I had just used two nights earlier at Instagon 543. I also added the iPad for the first time, using the Smule Magic Piano, Curtis granular synthesizer, and an app the simulates a Chinese guzheng.

I packed up and made the long trip from San Francisco to Boulder Creek. Unlike Santa Cruz, which is a straight shot, getting to Boulder Creek in the mountains is a bit of a challenge on winding mountain roads, some of which masquerade as state highways. Look for an upcoming “fun with highways” describing that part of the experience.

[click to enlarge image]

I arrived just in time for the performance. Respectable Citizen, the duo of Bruce Bennet and Michael Zbyszynski, performing keyboard+electronics and saxophone+electronics, respectively. Their set featured fast saxophone riffs and “watery” FM sounds, some loud oversaturated moments, a fast shuffle, urban-landscape sounds, and insect-like sounds, with lots of speed changes and signal processing (e.g., waveshaping).


[Click to enlarge image]

Luke Dahl performed a fun piece based on samples from Karlheinz Stockhausen’s Kontakte 2. It is one of my favorite recordings, and Luke’s samples featured one of my favorite moments from it (a sort of descending pulse sound that eventually slows down to become discrete percussive hits). He arranged short samples on a grid that could be triggered independently, to make “improvised Stockhausen.” I got a chance to try it out after his performance.

I was next on the program. I opened with the live sampling and playback controlled by the monome. The light patterns on the device still captured the attention of the audience even in the bright afternoon sun. I think they were also intrigued by my technique of putting the iPhone Ocarina in front of the speaker.

Next up was a live broadcast of the R Duck Show. The opened with the somewhat funky 1970s theme from Sanford and Son, which soon started to glitch and was eventually replaced by freeform noise along with keyboards and guitar. Eventually, a mellow beat emerged (I am pretty this was done with Ableton Live!). Oh, and the program’s host Albert brought chocolate. Really good dark chocolate infused with chilis. Quite tasty.

The program was rounded out with The Stochastics, a trio of Chris Cohn, Leaf Tine and Wayne Jackson.


[click to enlarge images]

The set opened with low rumbling noises, which served as a foundation for Wayne’s circuit bent instruments and Leaf’s vocalizations and performance on an instrument which seemed to be a didgeridoo with a trombone-like bell. Lots of interesting words and incantations and throat singing, and squeaks and squeals and rumbles from the circuit bent instruments. Here is a close-up of the impressive array of circuit bent toys.

[click to enlarge image]

One fun moment was Wayne attempting to create a sub-contra-contra-bass plucked string instrument by stringing duct tape between the microphone on one side of the stage and the speaker stand on the other.

and plays a molecular synthesizer

“Tuesday at Tom’s” is a series of performances in a private home in Berkeley. This past Tuesday I had the opportunity to perform along with other small groups whose performances all took advantage of this informal and intimate setting.

Polly Moller and I performed the “Ode to Steengo.” The piece was originally inspired by spam texts that were forward to the Bay Area New Music list that seemed to describe the adventures of a musician named Steengo – “he is a percussionist and plays a molecular synthesizer.” The texts include a mixture of dialog about a band performing together, and sci-fi and surreal images.


[Photograph by Jennifer Chu. Click to enlarge.]

The performance included live electronic processing of spoken word as well as flute, bells and heatsinks. In addition to looping and effects, I also used a Korg Kaos pad, which has become one of my most reliable live-performance tools, to represent the “molecular synthesizer” as well as other interpretations of phrases in the text.


[Photographs by Jennifer Chu. Click to enlarge.]

The performance was well received , and I did get to hear part of it in videos. The balance and interplay between the synthesizer notes, spoken word, and instruments was very tight – once again practicing does pay off.

We were preceded on the program by New York-based guitarist and sound artist Terrence McManus.


[click to enlarge]

Although his performance centered around the guitar, the instrument served as part of a system for generating abstract sounds with electrical and electronic effects. Musically, the sound ranged from quite noisy to very harmonic and serene, often with gradual shifts. There were sections where McManus did pick up the guitar and play it like a traditional guitar, with delays and other effects; he also at one point used a cell phone in conjunction with the guitar.

Following us was the duo of Johannes Bergmark and Tippi. Bergmark’s homemade instruments are always intriguing, a mixture of found objects, sculpted creations of wood and metal, and contact mic:


[click to enlarge]

By contrast, Tippi’s contribution focused on electronics, including circuit-bent instruments and hardware synthesizers (such as the Nord Micromodular):

[click to enlarge]

Musically, the combination was an intense mixture of sound objects and textures, with lots of strikes and crackles, rich metalic sounds, static and synthesizer noise, and toy sounds. I mostly focused on Bergmark’s performance and his motions with the various toys and appliances and metal constructions.

The final set was the trio RTD3, consisting of Ron Heglin, Tom Nunn and Doug Carrol performing free improvisation.


[click to enlarge]

I found myself focusing quite a a bit on Nunn’s custom electronic instruments, two of which looked like boxes with interesting controls on top, and the third was a series of live metal rods that could be struck or bowed; and Carrol’s rather unusual and theatrical positioning of his cello in some sections. Although there was an electronic component, the music itself sounded “acoustic”, as it was dominated by cello, and Heglin’s trombone (and occasional vocal) performance.

Weekend events in San Francisco (Music, Art and Cats)

Another busy weekend, especially with the number of things going on. We only have time for a partial review…

First, there a quick stop at downtown pub to see some friends/colleagues. Then a rush to BART to get across the bay to Berkeley and my old stomping ground, the Center for New Music and Audio Technologies (CNMAT).

I was a few minutes late, but still had plenty of time to hear Joker Neils and Gino Robair performing a improvised duet. Robair has an amazing talent for getting electronic-like sounds out of acoustic percussion instruments, and did so again on this evening. Neils was primarily using custom synthesizers, both professional instruments as well as circuit-bent toys. We have discussed circuit bending previously here at CatSynth. He brought several well-crafted examples, including Suziki Omnichords with contact-resistance interfaces; and he also brought a tremendous enthusiasm to his performance and to his discussion of circuit bending in between sets.

Also presenting was Rob Hordijk, who designs custom synthesizers (or “works of art” as he described them). Among the technologies he employed in the “Blippobox” that he presented were chaotic oscillator pairs, where two oscillators feed back into one another to create non-linear modulation, and a filter that he called the “twin peaks” filter (presumably because it has two resonant peaks).

Amy X Newburg lent her vocal and electronic-music talents during the presentation and in the second half of the show – readers may remember her from a a recent music festival that we reviewed.

I had some interesting conversions with both Amy X Newburg and Joker Neils following the performances, which is always a nice coda to a concert.


It was another exceptionally warm weekend in San Francisco (I wouldn’t mind it becoming less exceptional), so more opportunities for walking events. First off I finally made the trip to the San Francisco SPCA to inquire about volunteer opportunities and see their much touted adoption center. The cat area featured large rooms, “kitty condos” as well as comfy areas to hide – it actually seemed on par with the “cat resorts” where I looked into boarding Luna. The SPCA is actually a short work away from CatSynth HQ (well, it’s at least short from my perspective).

Another short walk in the opposite direction from CatSynth HQ led to the Yerba Buena Gallery Walk. Open studios and gallery events are pretty regular occurrences, even within walking distance. Plus, there’s often free food and drink. I didn’t see too many things that truly interested me, except for some abstract paintings at 111 Minna that I had already seen during the first Thursday earlier this month. But that doesn’t mean the afternoon wasn’t without its attractions. Some of the galleries, such as Varnish, were in very interesting spaces, such as converted industrial buildings from the early 20th century. A view of Varnish is in the photo to the left. Additionally, some of the sights on a gallery tour aren’t the works of art, but the people viewing them – and this is even more true on a warm sunny day. Finally, I did have a delightful conversation with Jesse Allen at Chandler Fine Art – his very psychedelic/natural works aren’t what I am usually drawn to, but some of them did include abstract representations of cats and other animals and one “wild cat” in particular caught my attention.


More art on Sunday, this time photography. This Sunday was “Pinhole Photography Day” (who knew?) and the RayKo Photo center featured an exhibit, demonstrations, and most notably a ride on the Bus Obscura a school bus converted into a large camera obscura.

The bus obscura toured our South-of-Market neighborhood, providing a unique view via the pinhole-camera images. Small dots of blurry light would suddenly come into focus as a sidewalk or car or storefront.

Because the image were so localized, it wasn’t always clear exactly where the bus was, though every so often a familiar landmark would emerge. The ride was accompanied by live acoustic and electronic music, adding to the experience and making it different from the regular “tours” of our neighborhood.