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WellenFeld H 104: Network and Software
The signal
processing for the speaker is implemented via a Linux based cluster
consisting of 15 single nodes and two control computers. From there,
audio signals are routed over (optical fibre) MADI lines to
MADI/ADAT-converters located next to the individual, eight-channel
loudspeaker modules, resulting in a total of 832 channels of the
array. In addition, all components are linked via Gigabit-Ethernet
allowing two-way communication for updates, (real time) changes in
loudspeaker equalization and for state control. For the sound field
synthesis, the software sWonder - developed at the Technical
University Berlin and released under GPL License - has been extended
and separated in individual software modules for the graphical user
interface, a score player and recorder, a control unit, and individual
online and offline rendering units. The individual modules communicate
via the OSC-protocol for defining dynamic, temporal/spatial scenes.