The basic wall mount controller, Libertas, supports either peal functionality (2206 firmware) or chime control (2209 - previously 2208) functionality (music and MIDI input). The rack mount units do this as well, but can also house an optional sound module for the hearing the chime/carillon inside (and while the real bells are silent for practice) when the firmware is updated to 2210.
The sound option can be taken another step to allow a Millennium Platinum carillon to replace the Flemish bell voice with musical capability on tower bells. Custom engineering time is required to merge the latest electronic bell library with a bell control library to support the customer's scope of bells.
We have two styles of the Millennium Platinum Carillon Controller. An example of the 2211 is installed in Denny Chimes at the University of Alabama, and does not electronically echo the tower bells, but uses a microphone to allow them to be heard inside the tower.
A 2212 system is used at Arkansas State where it was not practical to run a microphone cable from the tower, so synthesized bells are used inside at the keyboard. Both systems have tower speakers to play electronic chime music.
A third type of hybrid system, we call Veritas, is used to augment the bells at IUPUI in Indianapolis. The sound generator map is used to determine which bells are electronic and which are acoustic (real). Part of the map programming also determines how much audio delay should be introduced to compensate for the mechanical striker delay, so the bells ring together. This type of augmented system is not available as a multi-voice Platinum or Millennium carillon.