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Since version 4.0, FESTIVAL can be used to create sequences in batch mode without using the graphical user interface (GUI).
A typical call to FESTIVAL in batch mode looks like this:
IDL> festival_batch_sequence, ['STEREOA', 'STEREOB'] ,'25-nov-2007 19:00', '25-nov-2007 20:00', SEQUENCE_DIR='~/my_movie/', CONFIG=~/FESTIVAL_PROJECT/config/my_config.txt'
FESTIVAL will then make the data queries and data processing exactly as if the GUI was opened and operated manually by a user.
The behaviour of FESTIVAL in batch mode is mainly controlled by configuration files. They are the same configuration files (default or user defined) that are created from the selection GUI (File -> Save). A default configuration file is distributed with FESTIVAL. The most commonly used parameters are or can be set directly from the command line.