The Trentham Wall
In 2010 we created a 'Sound Wall' in a garden at the RHS Tatton Show in Cheshire, UK. The wall was approximately six feet tall, and housed fourteen sensors mounted in slots. The sensors included lasers, pressure sensors, proximity sensors and dials. Throughout the show people were able to interact with the wall or just stop by and listen.
The wall was funded by Trentham Gardens and later re-built there, where it still runs today. It won a silver at the RHS Tatton show.
The echomap sound engine is configured to generate a continuous background soundscape. The software detects when the sensors are being triggered, and in that case reduces the activity in the background sound to provide the sensor input more room. Once the sensors become idle it increases the complexity of the background soundscape to compensate.
We found that the wall behaves like an instrument. There's an art to 'playing the wall', and different people play it in different ways.