gernothuber2 wrote:
> Dear Pratap,
>
> Another line of thought, starting with Walt's comments: How big is
> your dish? Getting a bigger dish could increase the low end boost
> enough to make a difference. The current Telinga dish is about 22
> inches in diameter, if memory serves, and can be had for under $100.
> If your old dish is significantly smaller (I don't know if Telinga
> used to make smaller ones), then this might help a lot. I am sure
> even bigger dishes can be had from other sources.
I'm not sure increasing dish size above 22 inches is all that
productive. Especially if you wish to be reasonably portable. 22 inches
can be used hand held, above that size it's more a tripod game.
Note that a lot of the bit about parabolics not reflecting low
frequencies is flawed understanding of how sound travels through air.
Even the tiniest dish (or microphone diaphragm) reflects low
frequencies. If this were not so, then microphones could not pick up
those frequencies. Think about a MKH-110-1 mic. It's diaphragm picks up
sounds down to 0.1Hz. But it's only about 1/2" in diameter.
Walt
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