Posted by Wayne Parham [ 64.216.177.45 ] on December 31, 2003 at 15:27:06:
In Reply to: Horn throat+SPL meter arrived. Measuring methods? posted by Mike.e on December 31, 2003 at 09:32:42:
Hi Mike!
You've described one of the problems with measurement of SPL, particularly from sound sources that are physically large. I'd measure your horn from a distance, and then calculate what this translates to at 1 meter. That will reduce sound source position error.
Check out George Augspurger's "JBL Sound System Design Reference Manual." It has a lot of good information that I think you'll find helpful.
Wayne
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