http://www.cstr.ed.ac.uk/projects/festival/. Unlike most drivers, the festival driver queues incoming commands, rather than overwriting them. When the queue is full, new commands are discarded.
Supported configuration requests:
|port||integer||1314||The TCP port on which Player should communicate with Festival.|
|libdir||string||"/usr/local/festival/lib"||Festival's library directory.|
|queuelen||integer||4||The length of the incoming command queue.|