Posts Tagged ‘surround sound’

Soundspiral outsideHere it is at last – the Soundspiral video!

It’s been about 18 months since I was asked to perform in the Soundspiral. I chose ‘Ada’ partly because it was a major new (at the time) piece I was very proud of, and partly because it was always meant to be quite an immersive piece that I thought would be appropriate for the Soundspiral. Since that time I have performed half of it in 7.1 and the whole thing twice in stereo in Second Life.

The Soundspiral version is more than all of those in several ways. Of course it’s in 52 speaker surround sound, but in the meantime I’ve been tweaking the parts and samples to make them better and convey the subject matter more clearly. I hope.

Of course, I didn’t generate the full 52 channels from my laptop into the spiral speakers, that would be insane … and impractical. For a start the rig doesn’t actually have 52 inputs but mainly it’s not meant to be addressed that way. The software system that drives the spiral (written by the hugely clever Daz Disley) can drive the speakers in spaces rather than individually. This gives the sound a great coherence and ensures that when things move, they don’t just disappear from one speaker (or set of speakers) but they move smoothly and naturally. It’s immensely impressive and gives the spiral a very clear and listenable sound.

From 2dgoggles, ‘The Client’ by Sydney Padua.

I ended up giving Daz 14 channels that were effectively 7 stereo sets. Dividing the spiral into 4 quadrants lengthwise and top and bottom sets. The last stereo set was for the live violin playing which I originally thought would move with me, but in the event that turned out to be unnecessary. Most of the played back samples were positioned using this system – one send for each stereo pair. There was very little movement of sounds involved, i wanted to create a space, rather than go ‘Hey, we can spin things round, isn’t that great!’ that some surround systems seem so keen on. The spacial idea was inspired by the Sydney Padua cartoons where Ada is lost in the internal workings of the Analytical Engine (see above) and this is depicted in the last 3 minutes of part 1.

A central pillar of the piece is a piece of text where Ada effectively predicts the ability of computers to compose music (soon followed by some automatically generated music – played while I change violins!).

The performance was part of the first Sonophilia festival in Lincoln and I am pleased to report that it drew a good crowd and several people came up to me afterwards to say how much they enjoyed it. I was pleased with my performance, and below is a video of the event for your enjoyment.


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