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.
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.
Travis Thatcher (MTG, Georgia Tech) showed Sequencer404 a network performance system using mobile phones.
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.
Eric Lyon (SARC) showed his approach to creating sample accurate triggering in Max/MSP and PD using the signal chain.
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…
