Hi everybody,
I thought it might be useful if I recap the process of transferring a DeltaQ design from Modeler to EASE world using a so-called GLL and a set of configuration files. This covers essentially the brief talk that I gave at the ShowMatch Event Training earlier this month.
First, what’s a GLL ? Essentially, it’s a file format of a data-container that describes acoustical, electrical and mechanical properties of a multi-component loudspeaker system. It’s a proprietary format by AFMG, the authors of the EASE software and other packages. Most notably, GLL’s are used for being able to simulate complex mechanical setups, like line arrays, or systems with advanced signal processing, like steerable column arrays. GLL’s serve two purposes: Creation of the array (and potentially, signal processing) under the mechanical constraints of the system and also Acoustical Prediction of the array performance. In this sense, each time EASE requires prediction results from a GLL-type speaker system, it will call the respective GLL plugin.
GLL is a kind-of industry-standard format for array-type loudspeakers and many of our competitors offer data in this kind of format, either for use in EASE or in other (licensed) AFMG products like ‘EASE Focus’. You may want to download the free ‘GLL Viewer’ software from AFMG, it will allow you take a look at acoustical data from all kinds of systems. GLL files are created (or ‘authored’) using a software called ‘Speaker Lab’, which requires a license.
We at Pro have been working the past months on the creation of a GLL that covers our RoomMatch system and also on procedures to transfer RoomMatch designs from Modeler to EASE. The RoomMatch GLL is currently in alpha status and we consider it accurate enough to be used on all kinds of projects. Please contact me and/or Product Management in case you have a partner that has a current need for simulating RoomMatch systems in EASE.
Today’s plan to interface from Modeler (and also the upcoming Bose Array Tool) to EASE is to create a separate application program that takes a data export file from Modeler or the BAT as input and generates a set of configuration files for both EASE and the GLL as output. The data export file is essentially the .xml model file that can currently be exported from the File menu. Two types of files are created: first, a single .xld file that can be imported into EASE and which contains a list of cluster coordinates, their aiming, and some signal processing, like delay. Then, a set of .xglc configuration files is created, one for each RoomMatch array in the model. An .xglc file can then be opened from within any GLL software and contains all information about the exact configuration of a particular array. At this point we have a Matlab implementation of this tool up and running and it has been successfully tested. So again, should you have a need for RoomMatch simulations in EASE that mimic a design created in Modeler, please send me a PM.
So far for today. I thought this info might have been helpful for discussions with your customers, probably mostly consultants, who are interested in using EASE for simulating DeltaQ arrays.
Please don’t hesitate do post any questions regarding this matter.
Best rgds,
Thomas
Hi Thomas,
Thank you for posting this information. I wish I had it before my presentation last week I would have been better prepared.
Good luck to all presenters that follow on from us in the UK
Best,
Tom