Garry Puffer Wrote:A troll on the Amazon Forums writes: "And the official conclusion is Oswald was the lone shooter."
I find it interesting that when informed that this is incorrect, that the official government position is "probably a conspiracy," the LNers come back with something like this:
"But the HSCA conclusion was based on the audio evidence which was later debunked."
Leaving aside the truth of such a "debunking," it is amazing that they believe the official conclusion can be overridden by a few "experts" offering a different opinion on the audio evidence. Somehow, magically, the official position is negated and reverts to the previous official opinion.
Regardless of what one believes about the audio evidence, it just doesn't work like that.
=================================================
Part of your question is whether the HSCA acoustical evidence is valid, i.e. Are the sounds of the shots on the tape recording of the Dallas police radio channel?
Here is HOW YOU can prove to yourself they are:
IF the sounds of the shots were recorded, then the times between shots would match the times between shots in the Zapruder film. Nothing could be simpler, even a child could understand that.
In the Zapruder film, virtually everyone agrees that when Connally begins his movements immediately after he emerges from behind the sign that he is reacting to a shot. The first frame number is frame 224.
You can see Connally after the sign first glance to his left then turn towards his right where he said he thought the sound of the shot came from. He said in many interviews he was NOT shot (in the back) before that turn but that he had time to turn to his right then back toward his left just as you see in the Zapruder film.
Another time in the Zapruder film that a shot was fired is frame 313, the frame that President Kennedy was hit in the head.
The FBI measured the film speed by filming a clock and counting the number of frames (18.3 frames per second).
Time between frames (Z313 - Z224) = (313 - 224)/18.3 = 4.8 seconds
Looking at the acoustical analysis times between shots:
It is immediately apparent that the times between shots #3 and #4 using the police radio audio tape matches the time between shots using the Zapruder film between frames 224 and 313. That suggests that the sounds of the shots WERE RECORDED. If you don't believe that, then you have to believe that the audio experts who analyzed the police radio recording were looking at random noise and just happened to show 4.8 seconds between two of the shots exactly like the Zapruder film shows.
Looking at other intervals between shots using BOTH the Zapruder film and the audio evidence shows that all five shots match! That effort takes a lot more work than the introduction I showed here. Multiple intervals between shots of course proves that the sounds of the shots really were recorded. That, of course, proves a conspiracy killed President Kennedy. The critics of the HSCA audio analysis did NOT disprove anything, they only published their opinions that the acoustical analysis is not valid. Who are you going to believe, audio experts or PhD's in other fields who gave their unlearned opinions?
And note, no one has previously used 4.8 seconds being common in BOTH the Zapruder and the audio evidence to solve the shooting mystery. In fact, you will find an incredible, idiotic mistake the HSCA made when you continue on.
When I wrote one of the HSCA acoustical experts and asked him why he did it that way, I was told they made him! In other words, it wasn't idiotic, it was misinformation to hide the truth. That will make more sense as you learn and understand more about the topic.
If you look at most documentaries and publications, you will see the HSCA publicized that there were actually four shots. But the figure I showed indicates the analysis showed FIVE shots. You must understand why and how the audio analysis was updated to five shots when the HSCA published four shots in 1978. That is part of the reason 4.8 seconds has NOT been noticed by very many JFK researchers.
Another question seems to be about how the audio analysis itself was done by two sets of audio experts for the HSCA. If you look at the figure of the acoustical gunshot timing, you will notice at the very top that the peaks of the audio waveform are numbered.
Is your screen resolution good enough to see that? The JFK assassination audio analysis was not the first time that an audio tape was used to solve a case.