sound sculpture (2017)
aluminium pipe (dimension variable), maxon motor, microcontroller, abs-box, wire, plug, rechargeable battery pack
technical description: low-frequency sound sculpture (100-150 Hz). an aluminum pipe (6000 x 25 mm) is bent between two walls of a room (6000 x 5500 mm) and brought to vibration. specific frequencies defined by the measurements of the volume of the architecture trigger so-called room modes - the particular sound of the room where the object is installed. the sound is not homogenous but creates spots within the room: "The input of acoustic energy to the room at the modal frequencies and multiples thereof causes standing waves. The nodes and antinodes of these standing waves result in the loudness of the particular resonant frequency being different at different locations of the room. These standing waves can be considered a temporary storage of acoustic energy as they take a finite time to build up and a finite time to dissipate once the sound energy source has been removed." (wikipedia)
installation shot at plattenpalast berlin. after a room-mode is obtained, the speed of the motor is accelerated. the breaking of the wave is transmitted to the wooden wall cupboard.
the resonating room is extended through the aisle. the frequencies accumulate in short distant spots.
a different position that is not accurately triggering the room modes. depending on speed acceleration and triggered frequencies as soon as a room mode is caught, the pipe begins to hit the floor and the waves start breaking.
IMPORTANT NOTE: for a decent reception a proper sound system with low bass range is required.