The Listening Room: the Connecting Principle, Newcastle

This proposal is to amplify the dark space beneath the stairs in the Fine Art Department at Newcastle using the principles expanded in my AHRB proposal (http://www.stalk.net/piano/proposal.htm), taking the sounds in the space and allowing people within that space to hear the space in a qualitatively different way over a few days. Various techniques are employed to allow the resonant frequencies of a room to become audible in real time - see Appendix below. This process is modulated by acoustic changes as people move around the space, by ambient sound, by humidity, by the movement of air.

Considerations with this particular installation will include the visual appearance of the space - lighting etc, a prime concern is to clarify the process at work.

It is my intention to set up the installation at some point during the summer, this should sort out any technical problems and make the eventual October version simpler and quicker to re-install in a configuration more likely to fit the overall context of this exhibition.

Appendix - Technology:

The basic system components of the installations are a microphone connected to a noise gate (in principle a switch which activates according to the volume of sound passing through it), amplifier and speakers in a highly reverberant room. The system is arranged in such a way that when the microphone and loudspeaker begin to feed back the amplitude of the sound causes the noise gate to cut off the signal. The feedback notes resonate through the space accentuated by the reverberation time of the space. As the sound falls below the threshold of the noise gate the system switches back on and the process continues.

The available pitches of the sound are primarily determined by the distance between the wall, floor and ceiling surfaces in the space, and by the location of microphone(s) and loudspeaker(s); by the time it takes a sound to travel and be reflected in three dimensions; not a simple equation. Microphones are Pressure Zone type to enable the plane of a room surface to act microphonically.

Equipment will be supplied by myself and the University.

Documentation of such site-specific work with its implicit focus on the real-time presence of the viewer/listener within the active installation presents significant problems - a recording is an inaedequate representation of the experience in the moment - you had to be there.

Activated Space is David Cunningham's project to develop and present a series of installations that alter an architectural space in real time to allow its resonant frequencies to become audible and interactive. The project combines elements from sculpture, electronic media, music, architecture and acoustics.

• http://www.stalk.net/piano/asindex.htm