CUBE incorporates the most sophisticated event-detection filter system, from the simplest to the most complex configuration. At a basic level, the user can define an event, comprising a trigger that can be programmed over a maximum of 24 time periods. All parameters (overall level, spectral level, sliding Leq, meteorological parameters, etc.) instantaneously stored at the logging interval can be used to define the trigger. With the advanced module, up to five events can be programmed, each comprising a combination of logic statements (“AND” or “OR”) for several triggers (maximum of five).