[bill]

Richard Crowley wrote:
"bill" wrote ...
You are right about the bass, and a bare speaker does pick up the wind
pretty good. What was strange about that setup was that a bug crawling
on the speaker surface was LOUD.

You may be on to something there (for insects, at least).
But doesn't seem very well-suited for birds. What about
an ordinary (and ultra-cheap) electret mic capsule in some
sort of weather-resistant enclosure like those louvered
little round housings they use for weather station thermal
sensors?

I'm collecting ideas right now. The speaker did kind of roll off the
birds but I could hear trucks and trains for miles, even farther than
with my own ears. A 4" speaker does seem to be kind of optimum around
200-400 Hz. I put a pre-emphasis network on it and it wasn't too
terribly bad.

--
Bill (Sleepless biker) Baka