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# Jorma Jormakka

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1. ## Can you give comments on two articles on the Dictabelt?

I looked at ther motorcycle noise on the Dictabelt. It is as follows: The timing is that the bell is 56.2s to 56.8s. from 0 to 37.5s there is laud motorcycle noise, basically uninterrupted 37.5s-45.5s motorcycle noise, but more silent, the cycle moves slower but does not stop 45.5s-48.7s the motorcycle is silent, no talking 47.8s-49.3s talking: hold it up right 49.3s-50.5s talking: there, we´re gonna do it 50.5s-51,7s talking: I, I got it 51.7s-52.5s talking unclear: let`s see of you got it 52.5s putative shot1 53.2s putative additional shot (shot4) 55.6s putative shot2, loud beep 55.8s laud beep the motorcycle is silent from 45.5s to 52.5s 57.0s-58.8s the motorcycle speeds up 58.8s putative shot3 (and putative shot5) 59.0-59.5 the motorcycle has stopped 59.5-1:04.00 continuous motorcycle noise, driving faster 1:04.00-1:04.06 beep 1:04.06-1:25.00 continuous motorcycle noise, continues from that longer 1:25.00-1:27.00 motorcycle noise, faint siren in the background, JFK taken to hospital (there is a clearer siren much later, at 2:45 ) So, from this data. The head shot had to be 58.8s since after that the motorcycle does not stop, while the motorcycle drives very slowly from 45.5s to 59.0s and stops totally after 58.8s. This indicates that the motorcycle is in the motorcade and reacts to the shots. About the Barger et al times from 1979. There is absolutely nothing hinting to gunshots in their times. 40.9s and 42.9s there is only motorcycle noise. 48.7s and 48.2s is just at the time of "hold it up right", or if you want "hold everything". The whistling is in two places 1:35.2-1:38.8 and 2:25.5-2:27.3 both times are after the stuck motorcycle has apparently started working ok. The tape has stopped before there times, they are not good for timing and the whistler need not be the one driving the motorbike. The lowest frequency peak from the motorcycle on the Dictabelt is around 380 Hz, corresponding to 22.800 rpm. I do not know how to connect this information to the motorbike type, but to me the noise from the three wheeler is not the same. This is about all I can get from the motorcycle noise. It supports the timing of shots which I proposed. There is nothing that supports the timing of shots as in Barger 1979.

3. ## Can you give comments on two articles on the Dictabelt?

Yes, cycles per second should be smaller that cycles per minute, it should be 60 times cycles per minute, so how do I get rpm from those plots where the power spectrum is in Hz?
4. ## Can you give comments on two articles on the Dictabelt?

I do not know about the motor rotations per minute (rpm). We have to solve this problem first. So, the plots of the Dictabelt have a maximum at 1100 Hz=cycles/second, divided by 60 that is 18.3 cycles/minute. If that is not 18.3 rpm, then I am lost, but help me, I do not know anything about bikes. There is fig.7 in the second paper I wrote, Kennedt_article2. It shows thje motorcycle noise at 58.8s, when I think the head shot occurred.The motorcycle stops, but starts again. At 56.2 starts a bell, what you see there is the bell, the motorcycle is very silent. So, indeed if you take the shot times that the Barger et al study from 1979 found, the motorcycle was running at a constant speed, but that is 9.6 s before the times I propose. In the time I propose, the motyorcycle has stopped. The times Barger et al proposed are exactly at the time when there is the talk we`re gonna do it, I, I got it,... it is not a correct place. I have synchronized the Dictabelt to the Zapruder film in Kennedy_article2. I say, Frame 313, the head shot, is at the time 58.8s in a Dictabelt recording where the bell starts at 56.2s. That is an exact timing. So, from that we can say that the recording of the Dictabelt started 58.8s before the Zapruder film frame 313. So far I have not looked at when the motorcycle noise started, but I will do the same as Thomas did, only it will take some time, my program only reads *.au files, that is, small parts of the audacity data. But answer about the rmp, we should get that issue straight. You see from the power spectrums that the maximum is at 1100 Hz. How does that relate to the rmp? If at all. Must be at all, if you listen you hear 1100 Hz noise.
5. ## Can you give comments on two articles on the Dictabelt?

Thanks, I will try at some point to match the motorcycle movements. In Barger`s report from 1979 the last shot on the head is 49.2s, I place it to 58.8s, that is 9.6s difference. It is possible that the motorcycle movements fit quite well to my shot times also. Look at fig.7 in my article 2. The motorcycle nearly stops at the head shot 58.8s, and it is going really slow when the shots come. Clearly, the motorcycle seems to be in the motorcade as its speed seems to be responding to the purported shot times. It always stops after a shot. The Zapruder film fits to my shot times. I does not fit the times of Barger`s report, as I time their times by the bell. It may be incorrect to assume that there are sounds from only one radio and drawing conclusions based on the exact location of the single radio. If there are sounds from several radios, this way will lead to contradictions. I just say that if it is a rifle shot, there is more power on high frequences than in motor noise or voice, and so there still is more power on high frequences than in motor noise and voice after passing the low-band filter effect imposed by the communication network, and looking for thick tails is the natural way to locate gunshots, if they exist on the tape.
6. ## Can you give comments on two articles on the Dictabelt?

I contacted Donald Thomas when I first started this study, because I looked at this after having watched his video in the web. Now, he was not very willing to share any information and he was not interested on my views either, or that´s how I saw it. But I got into some kind of a dispute with Steve Barber, I guess you understand he did not like my work that much, I did send my pdfs to him but have not got any answer yet. Yes, the match with the correct speed and everything looks good, but their timing of the shots is difficult to fit to anything on the Dictabelt and in the Zapruder film. Their time between the two first shots is less than 2.3 s, the third shot comes from front, cannot match these and my math does not confirm that their match is significant. In general, in echo correlation analysis one usually knows when the shot came and the task is to say where it came from. What they did was to find a match for a pattern. That is not what their competence was about, I think, if they did echo correlation analysis for the army. But I agree that my argument should be made stronger. I´ll think about it. Cannot improve it now. Thanks to you.
7. ## Can you give comments on two articles on the Dictabelt?

To Chris: I will measure the noise from the three wheeler from the video, but the noise in the Dictabelt can be seen in fig 4 in article two, you say 26,00 rpm, rounds per minute, that is then 60*26=1560 1/s, or 1.56 KHz. Plot in fig 4 is motorcycle noise and there is a line at 3kHz. Clearly 1,56 kHz should be about half between 0 and 3 kHz. I measured the Harvey. The plots are in http://www.pienisalaliittotutkimus.com/2017/12/18/who-killed-j-f-kennedy-and-why/ there is a link to Answer_to_Chris. To compare these two motorcycles, one first have to understand that the one in Dictabelt is recorded through a communication network (police analog radio) which attenuates, but does not completely cut, high and very low frequences. Thus, do not look at the power spectrum expecting that they should look the same, they do not. What one must look at is the rpm. The maximum frequence in the Dictabelt is 1100 Hz, which is 18 rpm (divide by 60), while in the Harvey we have about 1560 as you say, 26 rpm. I think these cycles are not the same type. To Eddy: I put a video available. There is the word boundary problem between Hold1 and Hold2.

9. ## Can you give comments on two articles on the Dictabelt?

I wrote two short pdfs on the Dictabelt, in http://www.pienisalaliittotutkimus.com/category/posts-in-english/kennedy-assassination/ I would appreciate comments, noticed misunderstandings, errors etc. It is not really my field, so there may be anything. Thanks, Jorma
10. ## Jorma Jormakka

My name is Jorma Jormakka. For a cv see http://www.pienisalaliittotutkimus.com/wp-content/uploads/2017/12/short_cv.pdf
11. ## Introduce yourself here

I am Jorma Jormakka. Nowadays I am independent researcher, meaning I can study different open problems on whatever fields. Up to 2010 I was a professor, in military technology and in communication networks, since summer 2010 I tried to write novels. I wrote two, but did not get them published, so gave it up.
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