Overview
Serious Kennedy Assassination researchers, as well as JFK conspiracy theorists, are aware of the Dallas Police audio recordings made before, during and after the assassination of the 35th President of the United States, John Fitzgerald Kennedy. The actual provenance of the audio recordings that researchers have intensively studied have always been a point of contention among researchers. However, we must find the most "credible" sources for the audio recordings and begin there. this why we have went back to the beginning and used a "non-stabilized" Channel 2 recording, the same recording made by the Dallas Police Department days after the assassination. This enabled us to "scientifically" analyze the audio and "scientifically" compare Channel 2 to the more stable Channel 1 audio. All Channel 1 audio used was decompressed at 5% per the findings of the HSCA in the late 1970's. So Channel 1 is stable up to a 98% probability.
This is a serious study of the Dallas Police Department recordings made before, during and after the assassination event. In 1963 the Dallas Police operated on two specific radio frequencies and recorded these radio transmissions on a Dictabelt recorder for Channel 1 communications and a Gray Audograph dictation machine for recording Channel 2 communications. Both recording machines used different recording mediums for day to day operation. We will concentrate most of our analysis on the Gray Audograph machine as the Dictabelt recording of Channel 1 has been extensively studied and applicable data is available to determine the most likely, and scientifically conclusive, method of stabilizing the recording.
Many researchers have attempted to synchronize Channel 1 with Channel 2. However, we have made new discoveries that may be used to refute a few popular conclusions with regard to past attempts to synchronize the channel's. The need to synchronize Channel 1 and Channel 2 is paramount due to the likelihood that Channel 1 may have captured an audio record of the assassination itself. We will not be examining past conclusions made by the scientific community. We will simply present our new evidence - conclusions and allow the serious Kennedy researcher to make a determination on their own, hopefully without prejudice of commonly held opinions.
Synchronizing The Audio
Channel 2 Dispatcher Call Times
Channel 2 was utilized for Presidential motorcade communications between Dallas Police personnel and Channel 2 dispatch. The channel was used for letting dispatch know the location of the motorcade and to relay any issues they may have along the way. Channel 1 on the other hand was used for regular police business. Most have attempted to synchronize both channels by "time on tape" between both channels. But this approach in itself is an inherently inconsistent manner of synchronizing both channels due to the method used to call out the time by the respective dispatchers of each channel. We could reasonably expect up to a 30 to 45 second rate of error if we simply apply the "call time" method of synchronizing both channels.
Channel 2 and Channel 1 Cross-Talk
We have approached the sync problem by performing an intensive study into the cross-talk captured on Channel 1 from Channel 2 communications. Researchers have published up to 5 instances of cross-talk, and in our opinion, have misidentified a few of these known instances of cross-talk. We have found 10 instances of cross-talk on Channel 1 that originated from communications on Channel 2 and the data is to say the least, surprising.
In our next chapter we will begin with an examination of the Gray Audograph machine and the recording method-medium used for day to day operation.
Shots Fired
Included in our analysis we have identified the best-case region of audio where, if recorded at all, the actual shots can be found. Many past analysis/hypotheses tried to identify the region of audio in Channel 1 close to the actual cross-talk event "I'll check it" without consideration to the playback warp associated with the Gray Audograph machine. Conversely other studies of these conclusions have misidentified another cross-talk event that occurs 10 to 13 seconds after the "I'll check it" cross-talk event in Channel 1. We briefly review these popular conclusions and present our hypothesis as to where the shots where actually recorded, if the shots were recorded at all. It is still highly debatable as to the actual position of the motorcycle officer who had the stuck microphone.
What we found in the "expected" region of audio in Channel 1 where the shots would have been recorded is intriguing. The most surprising discovery was the suspected shots in Channel 1 are accompanied by suspect signals that seem to be some form of coordination. We have used very credible first hand witness accounts of the pattern of the shots, the position of the motorcade and the popular Zapruder film to present a new hypothesis of the assassination itself.
Missing Audio
One conclusion derived from the mathematical analysis of both Channel 1 and Channel 2 is the appearance of missing audio in Channel 1. The playback warp associated with the Gray Audograph dictation machine can be compensated by applying a linear decompression of the audio from a set point. This method of decompression is far easier said than done so we approached this problem by utilizing hypothetical mathematical decompression based on actual cross-talk event found in Channel 1 that originated in Channel 2. What we should have found is a polynomial decompression rate in Channel 2 as compared to the cross-talk in Channel 1. What we found is surprising and it points to a region of audio, possibly up to 60 seconds or more, that appears to be missing from Channel 1.
