Walter,
I have an instrumentation microphone with a diameter of 0.10", and the abi=
lity to make quasi-anechoic measurements at essentially any range. At leas=
t I should be able to do 100 meters. Now if only I had a parabolic microph=
one. I'm on the wrong (left) coast relative to you. Perhaps I will build =
one up. But there are a lot of projects in the queue ahead of that. I can=
also do polar patterns in increments as small as 1 degree, although it's a=
lot of work.
Is there anyone in the area of Pacifica, California, who would like to get =
their parabolic microphone measured?
Walter Knapp <> wrote:
From: "Rich Peet" <>
> 4. How would one measure the pressure difference and size at focus at
> various frequencies and at various different origination points?
It's going to come down to close to impossible. Unless you have a very
long soundproof room and a good measurement mic with a very tiny diameter.
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