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<blockquote data-quote="Ivan Beaver" data-source="post: 40969" data-attributes="member: 30">Re: What does architect provide for acoustical prediction?Then you are not talking about acoustical prediction, but rather a simple coverage map.Those are VERY VERY different animals-with lots of difference in skill needed and accuracy in prediction.HOWEVER- you need to be sure to use a 3D model.&nbsp; As far as I know (the last time checked anyway) the GPA was only a 2D model.&nbsp; As such, it will only predict what will happen if the loudspeakers are in the same plane as the audience.&nbsp; Not usually the case with an install in which the speakers are up in the air (a different plane.).&nbsp; If I am wrong on the availability of a GPA 3D model I appologize.You will also need to be sure the data for the particular loudspeaker choice is available in the particular model you want to use.Not all loudspeakers with the same &quot;specs&quot; have the same coverage maps.</blockquote>

[QUOTE="Ivan Beaver, post: 40969, member: 30"] Re: What does architect provide for acoustical prediction? Then you are not talking about acoustical prediction, but rather a simple coverage map. Those are VERY VERY different animals-with lots of difference in skill needed and accuracy in prediction. HOWEVER- you need to be sure to use a 3D model. As far as I know (the last time checked anyway) the GPA was only a 2D model. As such, it will only predict what will happen if the loudspeakers are in the same plane as the audience. Not usually the case with an install in which the speakers are up in the air (a different plane.). If I am wrong on the availability of a GPA 3D model I appologize. You will also need to be sure the data for the particular loudspeaker choice is available in the particular model you want to use. Not all loudspeakers with the same "specs" have the same coverage maps. [/QUOTE]

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