Re: Hello, Thank You, a short (?) introduction - parabolas

[madl74]

> We'll focus them on the same point a few hundred feet away, and make a mu=
lti-track recording of some noise passes.

Dan,

That would be very interesting especially with a reasonably constant sound=

source which is why I shake peanuts. :-)

The Wildtronic recordings I've heard so far have all been over-recorded wit=
h
peak limiting and with auto level control actively "pumping" and sometimes=

even with peak enharmonic (grumbling) distortion. Some parts are free of
these effects, but I'll keep banging on about how you don't need to record=

anywhere near 100%. I was listening at -12dBs and checking audible
cross-modulation distortion with audiograms.

I'm curious about the quoted 4dB noise figure - compared with what? It can'=
t
be with free air as it isn't in free air. It's in a higher impedance
environment. Does the thermal noise of the air also get amplified by the
parabola?

David Brinicombe