Chelpa Ferro - MIC

DE 13/04/2010 - 08/05/2010 A




MICis a sound installation that was originally developed in the occasion of the 7th Bienal do Mercosul, Porto Alegre (RS), in 2009. MIC is composed of a motor, a rail, a microphone, a guitar amplifier and 28 glass vases. The 28 glass cylinders of different diameters are placed side by side next to a wall. The rail runs along the wall, three meters high, with the motor that drives the microphone that is hanging in its own cable. A route for the microphone is created over the vases. The microphone captures the vibrations of the reverberance inside each glass cylinder. An amplified microphonism is then heard and different frequencies and notes appear as the microphone passes upon the vases. The sound composition is part programmed and part random. The exhibition viewers must activate the industrial pedal to start the motor that moves the microphone. The motor will stay on for a time that was previously set, and then it will have to be started over again.