SpeakerLab is a separate program supplied with EASE and EASE JR that allows users to generate loudspeaker files in the GLL format for use in EASE and EASE JR.. The GLL (Generic Loudspeaker Library) format is a comprehensive , descriptive, object-oriented data format developed by AFMG as a means of storing and exchanging complex data on loudspeaker systems and acoustic sources such as:

    - line arrays
    - column loudspeakers and steered columns
    - loudspeaker clusters and arrays
    - multi-way loudspeakers.

Conventional loudspeaker and balloon directivity data typically reduce all loudspeaker systems to abstract single elements – a simplifying assumption that is no longer required in today’s era of cheap computer memory and processing power. Actual acoustical sources are more complex. Line arrays, for instance, often have variable rigging hardware and can assume multiple angular configurations. Column loudspeakers (both conventional and digitally controlled), clusters and vertical combinations of multi-way loudspeakers all differ radically from the “idealized” point source. Crossover and equalizer settings can also alter the behavior of otherwise identical loudspeaker systems.

An associated GLL Viewer program is supplied with SpeakerLab. It allows users to inspect GLL loudspeaker models.