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WeeklyBeats.com / Music / Tristan Louth-Robins's music / Goyder's Line And A Shadow Passes

Goyder's Line And A Shadow Passes

By Tristan Louth-Robins on May 3, 2014 10:32 am

A follow-up to last week's submission. 

I set up a light sensor near the window in my studio and (via Arduino) read the light measurements in Max/MSP , using this data to control the frequencies of two sawtooth waves. The sawtooth signals are then routed to the inputs of the Microkorg's vocoder as the Carrier and Modulation inputs.

I recorded the track from 5:15pm to 5:35pm as the sun was starting to go down and the light steadily diminished. Over the course of the track you will hear the gradual shift in modulations and interrelationships between the sound sources as the light index drops. Obviously, this is an edited version and I might post the full 20-minute version on my Bandcamp page at a later date.

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not into drone but still found it beautiful. a bit long for me though smile

Thanks yan_g, I've been listening to a lot of Eliane Radigue lately so things are are going by the way of very drone and very long wink

Awesome concept - all for alternative controllers for sonic output smile Looking forward to extended version!

Really like this. Inspiring to do some stuff with Arduino too.

Thanks guys! Yeah, I'm very much learning as I go along with this current set-up. Vocoders have always been sort of vague and mysterious to me, and for someone who's been working with music technology for years, I've always struggled with properly understanding the way they work. It's not an isolated case though, as I tend to jump at technologies/devices, talk about it a lot, realise I've misunderstood the theory, then go back and figure out what I've been doing.

This week's submission builds on this set-up and I've documented its development in the video below.

It's practically the same set-up, but with the addition of some long delay and feedback.

http://www.youtube.com/watch?v=GX7Lp4e2fPE

Also, maybe someone can clarify this. Up until the other night I'd been assuming that the Carrier signal was being mixed with the Vocoder's built-in oscillator and noise generator, but I'm thinking now that the incoming carrier signal is being cut off (in favour of the osc and noise) when the keyboard is played. This would in effect make the first sawtooth wave as the Carrier redundant, and it would be the just the second sawtooth wave (as Modulator) having any external influence on the built-in sound generators. (wow, that's really long winded..I hope it makes sense!)

Tristan Louth-Robins wrote:


This week's submission builds on this set-up and I've documented its development in the video below.

Sorry, that should be next week's submission.. wink

This is great.  As a fan of Eliane Radigue, I hear the resonance with it.  Ingenious plan for generating the drone and the changes as well. 

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