ICMC 2006 – Friday 10 (Day 5)

Interesting things from ICMC 2006 day 5:

Max Matthews (CCRMA) spoke about phase filters

The algorithm is a difference equation based on a rotating complex number. A complex number, viewed as a two-dimensional vector, is sometimes called a Phaser, hence the name of the filter. The resulting filter is a high Q two pole resonant filter that is well behaved in terms of stability and is easy to re-tune dynamically during a performance. The filter is about twice as expensive in terms of computer multiplies and additions per sound-wave sample than most other filter algorithms but laptop computers now are so fast that they can run a bank of several hundred Phaser filters in real-time.

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The piece Underground by Tom Lopez was a nice blend between visuals and sound from the London underground.

Nodule Donna Hewitt and Julian Knowles (Australia) played a piece for eMic and laptops. The eMic is a microphone stand with built in controllers and makes it possible for the singer to control the sound.

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Travis Thatcher (MTG, Georgia Tech) showed Sequencer404 a network performance system using mobile phones.

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Zack Settel, Mike Wozniewski and Jeremy Cooperstock presented the Open Territories project, a virtual sound world system developed at SAT where you can move around and get different types of sound spatialization. They used an IntertiaCube3 for getting 3D position.

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Eric Lyon (SARC) showed his approach to creating sample accurate triggering in Max/MSP and PD using the signal chain.

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There were also some interesting pieces during the evening concert, but I can’t remember which since I have lost the sheet with comments from that concerts…

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alexarje

Alexander Refsum Jensenius is a music researcher and research musician living in Oslo, Norway.