Re: 2 source interference - setup

[GARY HEMMINGER <Hemmig@D-E.ORG>]

> > We're planning to try again this year the demo with 2 speakers & a
> > sine wave generator in a field.  Last year it didn't work very well,
>
> Can you be more specific about the setup, what you observed, and why you
> didn't like it?
>
> > there was a building about 50 yards downrange from the speakers,
> > and relefections might have been too great, but we also found that
> > whereas a pair of cheap midrange speakers gave a weak
> > interference pattern, a pair of expensive two-way speakers (which
> > were louder and thus should have been better) didn't work at all.  Is
> > it possible that crossover circuits in two or three way speakers
> > would somehow muddy the waters?

Using a wavelength somewhere around a meter we set up our
speakers about five lambdas apart and facing across the field.

> I doubt that crossovers are a factor.

There seem to be differing opinions here - I'd be interested to hear
more.


*****************************************
  Gary Hemminger
  Dwight-Engelwood School
  315 E. Palisade Ave.
  Englewood, New Jersey
             07631
  e-mail: hemmig@d-e.org
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