Many acousticians and designers of sound reinforcement systems utilise commercially available modeling programs such as EASE, which permit the acoustic properties of the venue to be included in the design process.

Until recently, separate, plug-in DLL (Dynamic Link Library) software programs have been needed to enable EASE to predict the performance of complex line arrays such as OmniLine. The new GLL (Generic Loudspeaker Library) format included in EASE 4.2 is an advanced data format that expedites the development of accurate and sophisticated modelling tools for simulation of line arrays, clusters and columns.

Since its introduction as a concept in 2005, Martin Audio has recognised the GLL as a major step forward — with entire systems, including high-resolution complex acoustic data, crossover filters and mechanical properties all bound together in one file. Dialogue with the Ahnert Feistel Media Group throughout the beta development stages has enabled Martin Audio’s newly developed, true-superpositional data to be implemented in the OmniLine GLL. This increases simulation accuracy by taking into account the previously ignored, yet very significant, acoustic effect of neighbouring enclosures in the array*.

A particularly useful feature of GLL is the ability to import and export whole system configurations. This allows seamless inter-operability between EASE and the OmniLine optimisation software - so that entire array systems complete with filters can be passed directly into EASE.

The OmniLine GLL can be downloaded at https://www.martin-audioftp.com/index.php

* S. Feistel, A. Thompson and W. Ahnert, “Methods and Limitations of Line Source Simulation,” presented at the 125th Convention of the Audio Engineering Society (2008 Oct.), convention paper 7524.