Friends:
Sorry for this obviously dumb question, especially from someone who
uses a parabolic reflector quite often but ... I just don't really
know anyone else who does.
Do people generally filter parabolic recordings to "undo" the high
frequency emphasis created by the recorder? I presume that one could
actually calibrate a particular reflector/microphone combination,
determining gain at each frequency and then post-filter a recording
to produce a flatter response?
I've given some thought to actually solving the wave equation
numerically and calculating the gain for a given reflector at
different frequencies. All I've come up with so far is the the gain
vs. frequency curve flattens out faster (meaning at lower frequencies)
in larger reflectors? Does this correspond the the experience of those
who've used several different sizes of reflector?
Thanks for any info...
Steve Pelikan
|