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measuring SPL

Subject: measuring SPL
From: "Gene Dorcas" genedorcas
Date: Tue Nov 7, 2006 8:59 am (PST)
My son plans to have some of his students study the effects of urbanization
on frog populations next semester. They have NSF funding and are trying to
determine what method(s) they will use to measure the sound pressure of jet
airliner noise in various locations.  Can the group give us some advice on
types of dB meters and suggestions on what to purchase.

Are the mics in dB meters typically omni or cardioid?


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