Quote:
Originally Posted by proudfootz
While all this is very interesting anecdotal evidence, the hard science indicates the gunfire recorded on the Dictabelt occurred in Dealey Plaza at the same time that Kennedy was assassinated there.
No, Dealey Plaza is excluded as the origin of the transmission because there is no crowd noise, as heard on authentic transmissions from Dealey Plaza, and because the motorcade's sirens are not heard for more than two minutes after the time of the shooting. The sounds on the recording are consistent with the Trade Mart, but not in any way with Dealey Plaza. The alleged 'impulses' overlap with the microphone capturing Sheriff Bill Decker's words 'Hold everything secure,' from a nearby police radio tuned to Channel 2, which was over a minute after the assassination. And there is no gunfire on the recording. Not even Dr Barger said that there was gunfire on the recording.
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Mr. FITHIAN. While they are doing that, let me ask you sort of the central question.
Is it your conclusion that you proved that there were four shots?
Dr. BARGER. No.
Mr. FITHIAN. With regard to the groupings of shots what do you prove then?
Dr. BARGER. As regards the grouping of the shots, we demonstrated with
high confidence that *if * there are four shots, we demonstrated the times
at which they occurred, and the intervals between them were described by
Mr. Cornwell, 1.6 seconds, was it 5.9, and 0.5.
Dr Barger was only prepared to testify to those inaudible 'impulses'. And gunfire is not inaudible. When Barger recorded actual gunshots in Dealey Plaza, they were thoroughly audible.
And Weiss was just making stuff up and assuming the conclusion in advance. And McLain's motorcycle simply wasn't where Weiss needed it to be, so the whole thing falls.
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Mr. CORNWELL. In addition to the tests that Dr. Barger conducted, did you need anything else, any other information in order to follow this process?
Mr. WEISS. Well, yes. We needed, in order to perform this prediction
process, we needed to know a number of things. First, we needed to know
where the sources of sound were.
Now, of course, that means we had to have some idea of where a shooter
might have been, and by all indications, he had to be someplace up on the
grassy knoll, and we had that area taken care of. We had to know, of
course, also where the reflecting surfaces were. That is for a particular
assumed position of the microphone, where the major reflecting surfaces
were. So we had to refine our understanding of how the echoes were
produced in that case. We had to know approximately where the motorcycle
was, because although this technique is simple and straightforward, it can
become pretty tedious if you don't know approximately where or reasonably
well where the motorcycle is, and you can assume it to be anywhere in the
Plaza. So we had to have some idea where it was. And what we assumed was that it was approximately in the neighborhood of that microphone that gave the strongest matching pattern in Dr. Barger's experiment between a shot from the knoll and the impulses audible on the police tape recordings.
Furthermore, in order to calculate the echo times, the time of arrival
at each of these echoes, we had to know what the velocity of sound was in
the air. As I said before, the velocity of sound is constant in all
directions. However, it is not always the same value. In particular, it is
a function of the temperature of the air. So we had to find out what was
the temperature of the air at the time of the assassination. And that was
about all we really had to know in order to perform the prediction.
Last edited by 57 On Red; 09-21-2017 at 01:31 PM.