Author Archives: Charles

Shorts #32: Stochastic Tendencies (2014)

[play]Shorts #32: Stochastic Tendencies (2014)

Commissioned in honour of Paul Berg, who was my teacher at the Institute of Sonology in Den Haag, when I was there for the course in 2006-7.

Paul Berg is the inventor of the AC Toolbox, which allows composers with Macs to do algorithmic sound generation. The class he taught spends the first several weeks covering a very thurough history fo electronic music, before switching to cover how to use several different tools, including AC Toolbox. Paul has decided to retire, so future students, alas, will not get the benefit of this amazing course, which was definitely a highlight of my time in the Hague.

This piece is made on my MOTM Analogue synthesiser, but applies several ideas I would more normally use in digital synthesis. It has random attack times, generated by using a random signal (filtered noise) triggering a switch with a variable threshold. When the random signal exceeds the threshold, the switch sent a bias as a gate to an envelope generator.

This piece also uses a very rough approximation of tendency masks, using a varying lag time for CV voltages that were increasing or decreasing.

It is mixed in Ardour, with some reverb added to the final mix in Audacity.

Because Paul is retiring this year, one of his former students contacted several of Sonologists and asked us to write short pieces to be put into a device called the ‘AC Juke Box’. The only constraint was that the pieces had to be mono!

Paul Berg’s scepticism about multichannel audio is legendary and also makes a valuable point. A musical gesture does not become interesting because it is moving in space. It’s too easy to use spatialisation as a substitute for generating interesting material. Paul’s tools and teaching all were aimed at generating interesting material. I hope this short piece contains some.

This piece is in mono. It also contains low frequencies that may not be audible though the internal speakers on some laptops, so you may wish to use headphones or external speakers to listen.

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Shorts #31: 1416343620 (2014)

[play]Shorts #31: 1416343620 (2014)

Commissioned and titled by David Jensenius, who says the title is the unix timestamp of when he received the commission.

This is an acoustic piece, recorded with a zoom and mixed in Ardour. The source sounds are my radiator, my kettle boiling, shoving a running recorder into a plastic bag and finally feedback from when I accidentally told Ardour to do monitoring of the internal microphone to the internal speakers. The feedback timbre is modified by putting my thumbs over the speaker grates. This does not have as much subtlety as the kind of speaker cupping that PowerBooks UnPlugged does with macs and feedback, but it still works.

The plastic bag portion of the sound is influenced by the Fluxus composition Micro 1 by Takehisa Kosugi, “Wrap a live microphone with a very large sheet of paper. Make a tight bundle. Keep the microphone alive for another five minutes”. I highly encourage people to try that out, as it’s surprisingly wonderful.

If you would like to commission a one minute piece, check out my online shop.

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Shorts #30: A lazy afternoon in the shade of the cliff (2014)

[play]Shorts #30: A lazy afternoon in the shade
of the cliff (2014)

Commissioned and titled by Dan Stowell.

This piece was created with a MOTM synthesiser and a Gravity Well fracRack module by Circuit Abbey. It was mixed in Ardour. It was my first use of the Gravity Well module, which does emulation of orbital paths. I need to read the help files a lot more to figure out exactly what is going on, but it seems to do wave shaping to emulate the position of satellites or other orbiting bodies. Appropriately enough, I was recording this during the comet landing, checking for updates between every track.

After mixing it, I did a final listen via only the internal speakers on my laptop and found that the last part was too low for the speakers to play any sound at all! In the mean time, I listened to the recording of the ‘singing comet’, and emulated it in a patch and put that over the second half.

If you would like to commission a one minute piece, check out my online shop.

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Meridian Drums

Meridian Drums (2013) was premièred at the Meridian Gallery in San Francisco in June 2013. It was made using SuperCollider and some analogue techno synths from the days when MIDI went over MIDI cables. These were the FutureRetro 777 and a Jomox AirBase rackmounted drum machine. The piece was only semi-interactive – I cued some section changes and modified the timbre of the 777 to sound less and less like a TB303.

This piece is available for download via BandCamp, provided you sign a petition supporting Laetita, a Russian LGBT asylum seeker in Sweden, who is still awaiting a final decision in her case.

If you want to support LGBT asylum seekers more generally, there is also a petition to ask Australia to stop deporting all asylum seeks to a country which prosecutes LGBT people.

Live at the Living Room Concert

[play]Live at the Living Room Concert (2011)

I wrote a SuperCollider patch that automatically pans my live synth patching and makes recordings of it. This was the maiden voyage in a concert situation, used in a very small concert on 19 September 2011 at the Fossbox workshop in Wapping.

For this gig, I mostly did chaotic FM modulation. I played around quite a lot with different modes of syncing the oscillators. Sudden major changes (including the silences) are from switching to a hard sync. I haven’t used the syncs much before, so I was never sure what they were going to do.

I’m planning on submitting a copy of this recording with my PhD thesis next week.

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Analog Variations

[play]Analog Variations (2010)

A piece created using an analog synthesiser and using analog
re-processing of recorded materials. The same sounds appear again and
again, each further prepared with analog methods. I wanted to get
back to my roots and do something that used a computer only as a tape
recorder and not as a compositional tool. It’s easier and more
rewarding to get organic sounds out of fiddling knobs than it is
fiddling number generators.

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Silicon Valley By Rail

[play]Silicon Valley by Rail (2010)

I was home last year for my uncle’s funeral. I don’t have a car or even a drivers license any more, so I rode a lot of trains, especially around the the South Bay Area. Silicon Valley’s trains are diesel, with real bells on them. They sound like something out of time, like our rail infrastructure is from the past even as our gadgets are pushing us into the future.

I recorded the trains and bells with a Xoom recorder. Then, I analysed the spectrum of the bells and used dissonance curves to construct a tuning for FM tones modelled on the bells. I used those tones to construct a drone and then mixed in some processed versions of the train sounds. There’s also a bit of binaural beating in this piece, making it a safe, legal high.

In the process of making this piece, I released a SuperCollider Quark called TuningLib, which has in it a DissonanceCurve class, useful for computing tunings based on timbre.

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Live at NOISE=NOISE #19

[play]Live at NOISE=NOISE #19 (29 April 2010)

There’s a series of Noise concerts in the London area called NOISE=NOISE, curated by Ryan Jordan. They’re usually pretty awesome. This was the second one I’ve played in. It was organised about two days before the event, so I threw together my set at the last minute.

In the first part of it, I’m playing my MOTM synthesizer and live sampling that in my SimpleSample SuperCollider patch, controlled by a wireless gamepad. However, one channel seemed to be out on the PA and it seemed like a lot of my SC stuff wasn’t making it out to the PA either. At some point, the joystick gave up the ghost completely, so it switched to being all modular synth.

Some of the frequencies really resonated the hell out of the space. For best results, listen with speakers rather than headphones and turn it up loud.

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Blakes 9 (2009)

[play]Blakes 9 (2008-9)

I’ve been working on this piece for over a year and it’s time to say it’s done.

The inspiration to start this piece came from two sources. One was that I watched the TV show Blakes 7 and thought it had great incidental music. And the other was that I briefly dated a poet who had a thing for the number 9.

I recorded a loop of synthesized sounds that seemed to go with the sounds on the show, and then I came up with a cutup algorithm that broke it into pieces based on a 9-feeling. But that wasn’t enough, so I added in some glitching. But that wasn’t enough, so I added in another section, and so it grew in an ungainly way, until it filled 80 speakers and was premiered as an N-channel piece at a BEAST concert at the CBSO Centre in Birmingham in June 2009.

Then I spent the summer mixing it down to 2 channels, while trying to prevent it from getting muddy. I won’t lie, it sounds better with more channels, but the stereo version is ok. If you have a subwoofer, it’s even better.

If you happen to have a speaker array of 8 channels or, really, any number of channels and you think you might want to present this piece, please contact me.

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Shorts: #29 Raining Up

[play] Shorts: #29 Raining Up (2009)

Commissioned and titled by Autumn Looijen

This piece was created using a MOTM Synthesizer and mixed in Ardour. There were several false starts. I had been doing field recordings of storms and for a while, every artificial sound I made seemed to also sound like weather. The title Autumn chose seems to indicate that I didn’t quite get away from weather-related sounds.

I have started accepting commissions of one minute pieces again, and I’ve dropped the price since the last round. If you’d like to commission me, check out my online shop thing. Order now to beat the holiday rush!

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