Since the advent of the theory of Dr. Christian Heil in 1992, and technology "WST" the revolution of the line arrays in the world of live sound, razed it with all he had his way, including many sound companies, replaced good Virtual Array systems, for systems "Line Array", not always with a correct design, which led to detract from the quality to belong only the world of online arrangements.
The theory of operation of the line arrays, populated pages and internet forums, the wavefront spherical and cylindrical infinite genus and generates marketing or physical analysis, were rediscovered Harry Olson, and talks on deposits of enterprises sound, there were about the distance between the speakers and the relentless pursuit of "the wave guide that meets the requirements," the inability to invest many dollars in a line array system, market population of systems not very reliable and others, that with ingenuity and study, have great versatility and quality.
The calculation of the positioning of Arrays Lines began to establish that placement of the cabinets (and incorrectly angles) can yield disastrous in different parts of the audience areas. So, as the use of prediction software turned into an indispensable tool for technicians and sound system designers, the big brands have and provide users with software to predict "specific" for their systems.
Small manufacturers of line arrays, ie owners of systems "custom" take some of these commercial software to bring a taste of what will happen to their computers, not always with good results, since although some parameters if maintained, major brands, they predict the corrections of the components specifically, a line array directivity achieved about constructive and destructive interference, so that the behavior of the wave guide is essential when predict a line array system.
A very good tool to experiment, and English, is the GPA software, which can bring a sense of the placement of a line array gabientes "generic", as well as the behavior of sub bass and cabinets predict conventional coverage simply reporting on your speakers, because many times, all these sub-systems interact in the areas of hearing. The GPA software is a great way to study the behavior of a sound system and easily. You can download the sotware from http://gpa.hms2k.cl/index_es.html free. Attached
LINKS pages our friends, to GPA, and we thank and salute Sebástian Godoy Rivas, creator and owner of GPA
hope doubts as to specify the data systems "custom", and design tools, which try to answer.
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