The HSCA Acoustical Evidence: Proof of a Second Gunman in the JFK Assassination

[Michael T. Griffith]

Lone-gunman theorists frequently cite Michael O'Dell's amateurish and flawed research on the HSCA acoustical evidence. John McAdams carries O'Dell's research on his website. Come to find out that O'Dell has also dabbled in the RFK case and has produced equally flawed "acoustical analysis" in that case.

Mel "Conspiracies Never Happen" Ayton asked O'Dell to analyze the one and only recording of the RFK assassination, a recording made by a journalist named Pruszynski. O'Dell wrote that he was only able to identify six shots on the tape. If the tape contains more than eight shots, then there must have been more than one gunman, because Sirhan's gun could only hold eight bullets (and Sirhan had no chance to reload).

When six acoustical experts examined the Pruszynski tape, five of them determined that it contains at least 10 shots and at least one group of two shots that were fired within 148 milliseconds of each other, far too quickly to have been fired by the same gun.

The five experts were Philip Van Praag, a world-renowned expert on audio recording technology and the man who literally wrote the book on the development of audio recorders; Wes Dooley and Paul Pegas of Audio Engineering Associates in Pasadena, California; Edward Brixen in Copenhagen, Denmark, who is also a ballistics expert; and Phil Spencer Whitehead of the Georgia Institute of Technology in Atlanta, Georgia.

The one acoustical expert who did not find more than eight shots on the tape was Dr. Philip Harrison, who was asked Mel Ayton to analyze the tape. Further investigation revealed that Harrison used a less-than-ideal a copy of the tape, didn't use any of the specialized equipment that Van Praag used, didn't use any of the test or enhanced recordings that Van Praag made of the tape, somehow did not notice either of the 120-150-millisecond double-shot groups, and admitted there were several impulses on the tape whose sources he could not identify. Also, it turned out that Harrison was not even aware of Pruszynski's movements and did not know where the microphone was. It seems that Mel Ayton did not give Harrison all the facts when he asked him to analyze the recording.

Anyway, we are only a little over five weeks from the release of Dr. Josiah Thompson's highly anticipated book Last Second in Dallas, which will include a detailed defense and confirmation of the HSCA acoustical evidence. Dr. Thompson has been working with Dr. James Barger on the acoustical evidence for the last several years.

 

[Michael T. Griffith]

A bit more background information on Dr. Thomas might be helpful.

Trust me, nobody cares a xxxx.

You mean you don't.

Lone-gunman theorists frequently cite Michael O'Dell's amateurish and flawed research on the HSCA acoustical evidence.

Mr. Science calling somebody's research amateurish while at the same time repeatedly has failed to support his own fantasy dicta-belt needle jump speaks volumes.

HUH??? I asked you several times to explain why you choose Decker's anomalous crosstalk, which has the largest time offset of any crosstalk event, as your time indicator as opposed to  the five time indicators that put the gunfire segment during the assassination, i.e., the Channel 1 12:28 time notation, the Channel 2 12:30 time notation, the Fisher crosstalk, and Curry's two Dealey Plaza transmissions. You ducked this straightforward question every time.

Of course, we both know why you cling to Decker's crosstalk as your time indicator: otherwise, you would have to explain the powerful, intricate correlations between the police tape impulse patterns and the Dealey Plaza test shots. You would need need to start by explaining why even the NRC panel admitted that there is only a 7% probability that chance caused the amazing locational correlations between the dictabelt gunshots and the test-firing gunshots.

[Michael T. Griffith]

I can pick any cross talk I like as a reference so your repeated nonsense claim tells me you don't even understand what cross talk is, which comes as no surprise.

LOL! Yeah, uh-huh. Shall we list your many comical gaffes that prove you have no clue what you're talking about? Do you remember when you were scoffing at the idea of time offsets? Do you remember when you said you could not understand Herb Blenner's research? Do you remember when you and Elliott claimed that human speech can cause N-waves? (Simple common sense should have told you that since speech does not exceed the speed of sound, there is no way speech can cause N-waves.) Remember? These are just a few examples.

BTW, there's no Fisher cross talk, I already linked to a rebuttal of that claim.

And I cited sources that prove your amateurish link is bogus. Even if we ignore facts and assume for the sake of argument that there is no Fisher crosstalk, what about the four other time indicators: the time notation on Channel 1, the time notation on Channel 2, Curry's "triple underpass" transmission, and Curry's "to the hospital" transmission? The gunshot impulses occur smack dab among these transmissions. But, nah, you ignore all this and cling for dear life to Decker's anomalous crosstalk.

By the way, Dr. Thompson's upcoming book Last Second in Dallas will confirm that Fisher's transmission is crosstalk.

So once again we're stuck with your fantasy needle-jump, which you refuse to back up with facts, which also comes as no surprise.

Uh-huh. You STILL have not explained why you ignore the five time indicators that put the gunshot impulses during the assassination but instead choose Decker's crosstalk as your time indicator. Talk about "fantasy."

I notice you avoided the point that even the NRC panel conceded that there is only a 7% probability that chance caused the locational correlations in the acoustical evidence. That means there's a 93% probability that those correlations exist because the police tape was recorded by a moving microphone in Dealey Plaza.

You see, as the HSCA acoustical experts pointed out, anyone who claims that the dictabelt's suspect impulse patterns were not recorded in Dealey Plaza during the assassination must explain the numerous intricate correlations between the tape's impulse patterns and the Dealey Plaza test-firing impulse patterns.

[Michael T. Griffith]

Kicking and screaming, polluting the thread with your canned trash over and over.

Your bluff was called and now you're on your own, panicking.

Oh, yes, I'm in full panic mode! Who, pray tell, called my "bluff"? When? How? You guys blunder all over yourselves, write evasive replies when your errors are noted, and then declare yourselves the winners anyway.

Come on, Applied Science Genius, show us that dicta-belt dancing needle YOU claimed could "misplace" cross talk -- ROFL

Uh, hold on, Mr. I Can't Understand Herb Blenner. YOU are saying that the five time indicators that I've cited must be misplaced, because the gunshot impulse patterns occur among them. But you claim that those impulse patterns actually occur at least 60 seconds after the assassination--because, because, because you use Decker's anomalous crosstalk as your time indicator, even though it has the largest time offset of any of the crosstalk events.

I have asked you at least a dozen times to explain why you pick one time indicator over five time indicators, two of which are time notations. You continue to duck that question.

SOMETHING caused the time offsets (you know, the time offsets that you didn't know existed until I proved they did), and SOMETHING caused Decker's crosstalk to occur to occur within seconds of the 12:30 Channel 2 time notation and within seconds of Curry's two Dealey Plaza transmissions, i.e., at least 60 seconds too early on Channel 1. SOMETHING caused those things, whether it was needle displacement or time-warping caused by copying or splicing.

YOUR explanation requires us to believe that all the intricate correlations between the police tape impulse patterns and the test-firing impulse patterns are somehow, someway just an incredible coincidence, when even the NRC panel admitted that the odds of chance causing just the locational correlations are only 7 in 100.

YOUR explanation requires us to ignore the calculation that there is only a 1 in 100,000 chance that the grassy knoll correlations are a coincidence. We all saw what happened when I repeatedly asked Joe Elliott to refute Dr. Thomas's calculation. Whiff. Whiff. Whiff. After making the already-obvious point that the calculation involves assigning values, he then declined to explain why the values that Dr. Thomas chooses are invalid. Yeah, duh, of course the calculation is not just math but math based on selected values. Ok, WHY are the values that Dr. Thomas assigned wrong? In fact, they are absolutely reasonable and irrefutable.

[Michael T. Griffith]

FYI, the release date for Josiah Thompson's long-awaited book Last Second in Dallas has been pushed back by at least one month. Amazon says it will be published on January 7, but the University Press of Kansas website says it'll be published in February. It is not unusual for a publication date to get pushed back once or twice, especially for a highly anticipated book.