A particularly good exhibition of sonic art by Rafael Lozano-Hemmer, which I wanted to keep some notes about.

The first thing, the most important thing, is that everything was presented beautifully, and worked. Where ultrasonic sensors were supposed to detect a person approaching, they did; when a button was supposed to record your voice, it did. I can say from experience this is no small achievement – so hats off to that. The second thing, which is also often lacking in exhibitions that involve something digital, is that everything was beautifully presented and looked as though the artists had been able to fulfil their intentions.

The artist has a concept of ‘speakers as pixels’ and in the piece Sphere Packing below it really works. Each sphere is covered in lots (sometimes hundreds) of tiny transducers working as speakers. They are so quiet, so close together, that from a distance each sphere emits white noise. But if you put your ear very close you can hear that it is actually playing a discernible song. For example, one sphere plays Mozart, but each speaker is playing a different bit of his work, so in total its just a random mess. I haven’t seen this played with before.

Sphere Packing
Sphere Packing

In this instance the way the effect works means that you to literally put your ear against the speaker to get an individual signal. I wondered if it would be possible to have the cross over from noise to signal a bit further away, but the logarithmic nature of perception might make this rather hard to achieve. I also wonder what the effect would be if the speakers played different but more related sounds, for example just fractionally out of sync. Virgin territory, as far as I know, it’s seems to explore a really interesting cross over between noise and music in a spatial way. This especially, but also perhaps the exhibition as whole, makes me thing of applications in calm technology.

In Voice Array visitors are able to record a short sample of their voice, which is played back on it’s own, then with all the previous contributions simultaneously. For me the sound aspect of this was less exciting than the way LEDs worked, each independently twinkling in slightly different shades of white, giving an effect that set it apart from the clinical look these things normally have.

Voice Array

Finally, Pan-Anthem, which features magnetic ‘bricks’ representing each country in the world by playing back their national anthem (although I seem to remember hearing that Oman doesn’t have a national anthem because music is banned there?). The magnet in the speaker sticks to the metal sheet on the wall, so the bricks can be re-arranged to visualise different sets of data. Weirdly reminiscent of the vitamin calendar, and obviously I like the idea of stand alone devices that play one song – being, this the eventual goal of the Rifff project.

Overall, the sound was actually quite annoying and didn’t add that much, but I feel like there is a realisation that could really make the sonic dimension work. I guess the problem with country’s national anthems is that they are mostly unknown and don’t evoke anything. If the system relied on a palette of sounds or songs I knew, or triggered a mood, perhaps it would work better. As with everything else though, beautifully, functionally executed.








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