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	JFK assassination: Report of the Committee on Ballistic Acoustics; Commission on Physical Sciences, Mathematics, and ...
		The original DPD Channel I Dictabelt was examined by some Committee members and by William Sturtevant of the Dictaphone Corporation for possible physical evidence of a double recording.
		With this identification, any substitution of a different Dictabelt for the original could not have been accidental; it would have had to be deliberate, and it would have involved counterfeiting the writing for the date and belt number.
		Similar difficulties face the hypothesis that the original Dictabelt was copied to another Dictabelt, that the cross talk was picked up during the copying, that the second Dictabelt was accidentally substituted for the original, and the original was destroyed.
	www.jfk-online.com /nasappd.html (2224 words)

	WhiteHouseTapes.org: About the Kennedy Tapes
		Audiotape and Dictabelt recordings relating to the 1962 integration crisis at the University of Mississippi and to the 1962-1963 tax cut proposals were chosen for the first phase project.
		The Dictabelt recording was manually operated and therefore deliberate like the audiotape system, however, it shows the same lack of systematic regularity and a certain amount of whimsical or accidental recording.
		Dictabelt #1 and its corresponding rough transcript were both removed from the collection before it was turned over to the Kennedy Library.
	128.143.21.78 /pages/tapes_jfk.htm (8767 words)

	Dictabelt evidence relating to the assassination of John F. Kennedy - The Black Vault Encyclopedia Project (Site not responding. Last check: 2007-10-17)
		Less well-known is a dictabelt recording from a police officer's motorcycle that was escorting Kennedy’s motorcade.
		However, after hearing testimony regarding the dictabelt recording, they quickly changed their findings and concluded a second gunman had fired a fourth shot at Kennedy (it was claimed that a fourth shot could be heard on the dictabelt).
		The dictabelt does not contain audible gunshots, but investigators compared "impulse patterns" on the dictabelt to the recordings of the firing of another Carcano rifle in Dealey Plaza.
	www.blackvault.com /wiki/index.php/Dictabelt_evidence_relating_to_the_assassination_of_John_F._Kennedy (899 words)

	WhiteHouseTapes.org: About the Kennedy Tapes
		Audiotape and Dictabelt recordings relating to the 1962 integration crisis at the University of Mississippi and to the 1962-1963 tax cut proposals were chosen for the first phase project.
		The Dictabelt recording was manually operated and therefore deliberate like the audiotape system, however, it shows the same lack of systematic regularity and a certain amount of whimsical or accidental recording.
		Dictabelt #1 and its corresponding rough transcript were both removed from the collection before it was turned over to the Kennedy Library.
	www.whitehousetapes.org /pages/tapes_jfk.htm (8767 words)

	Term paper on Dictabelt evidence relating to the assassination of John F. Kennedy
		John F. John F. Kennedy This article examines the dictabelt evidence relating to the assassination of John F. Kennedy.
		Many aspects of his assassination have been investigated, including a dictabelt (or Dictaphone) worn by a policeman escorting Kennedy’s motorcade on a motorcycle.
		Ohio rock drummer Steve Barber listened to that recording repeatedly and heard the words "Hold everything secure" at the point where the House Select Committee on Assassinations had concluded the assassination shots were recorded.
	www.termpapertopic.org /di/dictabelt-evidence-relating-to-the-assassination-of-john-f.-kennedy.html (542 words)

	The Dispatch - Serving the Lexington, NC - News (Site not responding. Last check: 2007-10-17)
		The Dictabelt evidence relating to the assassination of John F. Kennedy comes from a Dictabelt recording from a police officer's motorcycle that was escorting Kennedy's motorcade.
		Based on computer diagrams and recreations done by Dale K. Myers, it concluded that the sound recordings on the Dictabelt could not have come from Dealey Plaza and that the Police Officer H.B. McLain was correct in his assertions that he had not yet entered Dealey Plaza at the time of the assassination.
		Dictabelt 10 was worn from countless playings and cracked due to improper storage.
	www.the-dispatch.com /apps/pbcs.dll/section?category=NEWS&template=wiki&text=Dictabelt_evidence_relating_to_the_assassination_of_John_F._Kennedy (1059 words)

	Encyclopedia: John F. Kennedy assassination (Site not responding. Last check: 2007-10-17)
		For several minutes before, during, and after the assassination a Dallas police motorcycleman's radio microphone was stuck in the 'transmit' position and was recorded back at the police radio dispatcher's room on a Dictabelt.
		John F. Kennedy This article examines the dictabelt evidence relating to the assassination of John F. Kennedy.
		An official investigation by the House Select Committee on Assassinations (HSCA), conducted from 1976 to 1979, concluded The U.S. House of Representatives Select Committee on Assassinations was established in 1976 to investigate the John F. Kennedy assassination and the Dr. Martin Luther King, Jr.
	www.nationmaster.com /encyclopedia/John-F.-Kennedy-assassination (8253 words)

	Dictabelt evidence relating to the assassinat... - Wikipedia, the free encyclopedia
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	Can Technology Solve the JFK Murder?: Adding Clarity to the Debate
		A Dictabelt groove is 75 microns wide -- about as wide as three human hairs -- and five microns deep.
		But Haber and Fadeyev are cautiously confident they'll succeed with the Dictabelt as they did with "Goodnight Irene." Their next step: prepare a "proof of concept" paper for the National Archives.
		He cites a 4.8-second gap on the Dictabelt between what he views as the third and fourth shots.
	www.rd.com /content/openContent.do?contentId=26805&pageIndex=3 (575 words)

	Press - Press Release
		Each CD includes several dictabelt recordings and is accompanied by a tape summary prepared by archivists at the Eisenhower Library.
		All of the conversations on dictabelts to be released were recorded between September 1949 and June 1950 while Eisenhower served a President of Columbia University in New York City.
		Four of the released dictabelts record the February 7, 1950, conversation between Eisenhower and journalist-writer John Gunther, author of Eisenhower the Man and the Symbol.
	www.archives.gov /press/press-releases/2002/nr02-26.html?template=print (700 words)

	JFK Assassination - The Black Vault Encyclopedia Project (Site not responding. Last check: 2007-10-17)
		An unknown woman, nicknamed by researchers as the Babushka Lady might have been filming the presidential motorcade during the assassination because she was seen apparently doing so on film and photographs taken by the others.
		Their theory, based primarily on dictabelt evidence, was that President Kennedy was assassinated probably as a result of a conspiracy.
		The sole acoustic evidence relied on by the committee to support its theory of a fourth gunshot (and a gunman on the grassy knoll) in the JFK assassination, was a Dictabelt recording alleged to be from a stuck transmitter on a police motorcycle in Dealey Plaza during the assassination.
	www.blackvault.com /wiki/index.php/JFK_Assassination (4809 words)

	[No title]
		WC supporter Jim Moore gives some of his reasons for rejecting the dictabelt recording as evidence of multiple gunmen: Not once in its final report did the HSCA address how a gunman firing from the knoll might have missed, nor did it speculate on where the bullet hit.
		Having rushed to judgment on the issue of the dictabelt and the recording showed, the Committee dissolved itself with the admonition that it was unable to identify the other gunman and that the Department of Justice should examine the audio evidence to see if it concurred with the Committee's findings.
		The NAS review, in particular, discovered the existence of "bleedover" on the Dictabelt at the time of the assassination [actually, the bleedover was brought to the NAS panel's attention by a private researcher].
	karws.gso.uri.edu /Marsh/Jfk-conspiracy/Griffith.txt (2681 words)

	Techography: Dictabelt #10 and the Reluctant Particle Physicist
		Techography: Dictabelt #10 and the Reluctant Particle Physicist
		Their work can also be used to map the microscopic contours of old sound recordings, such as the historic recordings featured at the Library of Congress, but that can be played in any longer due to age and decay.
		By pure accident, a single motorcycle police officer, whom was riding with Kennedy's motorcade during the assisnation, microphone was stuck in the "on" position.
	www.techography.com /article.php?story=20050608080856182&mode=print (1129 words)

	[No title]
		Because the blue plastic dictabelt has not been transcribed and may contain data that are pertinent to the veteran's claim, this case is REMANDED to the RO for the following action.
		The RO should contact the veteran and ask him to submit a statement identifying the data contained on the dictabelt and explaining how such data are relevant to his claim.
		If medical information is contained on the dictabelt, the veteran should identify the name and address of the physician(s) providing such treatment or examination and state the date it occurred.
	www.va.gov /vetapp/files2/9410474.txt (522 words)

	Science Fresh : Article 'Dictabelt evidence relating to the assassination of John F. Kennedy' (Site not responding. Last check: 2007-10-17)
		Many aspects of his assassination have been investigated, including a dictabelt (or Dictaphone) worn by a policeman escorting Kennedyýs motorcade on a motorcycle.
		The adult magazine Gallery published a plastic record of the dictabelt recording in its July 1979 issue.
		Ohio rock drummer Steve Barber (http://mcadams.posc.mu.edu/barber.htm) listened to that recording repeatedly and heard the words "Hold everything secure" at the point where the House Select Committee on Assassinations had concluded the assassination shots were recorded.
	www.sci-fresh.net /DisplayArticleFull1033872.html (594 words)

	The HSCA's Acoustical Evidence: Proof of a Second Gunman?
		Moreover, an "N-wave," characteristic of supersonic gunfire, appeared in each dictabelt impulse for which the police microphone was in an appropriate position to detect it, including the recorded sound of the third shot [identified by the Committee as coming from the grassy knoll].
		In addition, the NAS scholars utilized a faulty transcript of the dictabelt recording, and, according to W. Anthony Marsh and others, found it necessary to manipulate the times of the transmissions on the tape, in one case by almost a minute, in order to reject the HSCA's conclusions (Marsh).
		Furthermore, weak spikes on the Dictabelt often are selected to correspond to strong patterns, in the test patterns and vice versa.
	karws.gso.uri.edu /JFK/the_critics/griffith/Acoustical_evidence.html (5500 words)

	Welcome to the Mary Ferrell Foundation
		Mary Ferrell and others brought to the attention of the HSCA the existence of a police dictabelt which might contain sounds of the shooting in Dealey Plaza.
		While the roar of motorcycle engine noise drowned out much of the audio from a human listener’s perspective, distinct spikes in volume could be analyzed statistically, based on comparison between the pattern of such spikes and the echo patterns which the buildings in the Plaza would create.
		The experts found 6 impulses on the dictabelt whose echo patterns matched what one would expect from gunfire in the plaza.
	www.maryferrell.org /wiki/index.php/Acoustics_Evidence (478 words)

	WhiteHouseTapes.org: About the Johnson (LBJ) Tapes
		The earliest Dictabelts were red in color, the same color as the Dictabelts used to record Kennedy's conversations.
		When a Dictabelt was full, the secretary would note the date, times, and the names of the participants on a slip and attach it to the Dictabelt.
		The transcripts, apparently, were stored separately from the Dictabelts and filed in two series: a white carbon copy in an alphabetical name file, filed according to the last name of the person speaking with the President, and a yellow carbon copy in a chronological file, filed according to the date that the conversation took place.
	www.whitehousetapes.org /pages/tapes_lbj.htm (7179 words)

	Can Technology Solve the JFK Murder?: Pulling Proof From Particles
		What he didn't know was that his drive-time brainstorm would end up pulling him and his partner into the heart of the most infamous of American murder mysteries: the assassination of Pres.
		Purely by accident, the radio microphone of a motorcycle cop riding with Kennedy's motorcade was stuck in the "on" position.
		But, having successfully developed a method for reproducing old recordings, he and his partner don't entirely dismiss the possibility that their approach could have a benefit for the millions of people still fascinated by the JFK case.
	www.rd.com /content/can-technology-solve-the-jfk-murder/0 (415 words)

	Cardinal pieces of the puzzle (Site not responding. Last check: 2007-10-17)
		Analysis of signals from the Dictabelt resolves a puzzling history of the acoustic evidence.
		Finally BB&N assumed that loudness of the interfering noise was proportional to the speed of the motorcycle as it carried the open microphone from one acoustically predicated position to another.
		However, in additional to using the Bowles tape, the RP obtained magnetic recordings of the Dictabelt from James Barger of BB&N and the Department of Justice.
	members.aol.com /hdblenner/cardinal.htm (2892 words)

	CROSSTALK
		The degree of warp was measured by the HSCA's acoustical experts by using the 60 Hz power hum from the motor that drove the dictabelt.
		The NRC panel confirmed this warp when it measured the interval from HOLD to YOU on the Bowles CH-1 tape at 171 sec, but when the dictabelt itself is played back at a speed set to match the 60 Hz power hum the same interval is 178 sec, equivalent to a warp factor of 1.045.
		However, the fact is that the dictaphone machine had to be serviced about every half hour or so because of the limited amount of recording space on the dictabelts, and if the person changing the belts (or someone else) accidentally bumped the instrument, this could have induced the displacement.
	www.geocities.com /whiskey99a/dbt2002.html (4016 words)

	The Evidence: Fitting the Pieces Together \| TIME
		A statement made by the President on his Dictabelt machine just after his meeting with Dean and transcribed by the Judiciary Committee shows that he admired those of his aides who lied to investigating groups and had contempt for those who told the truth.
		Strangely, Nixon began the Dictabelt by saying that March 21 was "relatively uneventful." But he went on to recount his long conversation with Dean and made a possible damaging statement about one of the most crucial parts of the Watergate case, E. Howard Hunt's demand for money.
		On the Dictabelt, Nixon placed much of the blame for the whole Watergate imbroglio on Charles Colson, who had recently resigned as White House special counsel.
	www.time.com /time/magazine/article/0,9171,942926-4,00.html (647 words)

	Tape of Kennedy Killing receiving digital analysis
		His critics have attacked him on television with tests purporting to show that the impulses on the dictabelt are from a motorcycle parked at the Dallas Trade Mart, five minutes from Dealey Plaza.
		A) The impulses on the dictabelt are gunshots, and from the echo patterns we determine that the shots all came from the right rear of the microphone (and therefore, the right rear of Kennedy's car).
		B) The impulses on the dictabelt are gunshots, and from the echo patterns we determine that some shots came from the right rear of the microphone, while others originated from the right front.
	homepage.mac.com /jim_snowden/iblog/C251042180/E19979329/index.html (325 words)

	Forum: Réponse et questions à Monsieur Nicolas Bernard
		Warren Commission (WC) apologists, along with some conspiracy theorists, have attacked the relevancy of the Dallas police dictabelt recording, which was allegedly made from a patrolman's microphone in Dealey Plaza at the time of the shooting (e.g., Posner 238-242).
		Though unclear to the unaided ear what among the various noises recorded on the Dictabelt meant, several critics postulated that among the clatter were a number of possible gunshots.
		If all of the Committee's conclusions about the dictabelt are accepted as accurate, then one must believe that the grassy knoll shooter somehow missed the entire limousine, even though he was only 111 feet away from it, and that the three other shots all came from the alleged sniper's nest.
	www.jfk-fr.com /fil_423-0.php (5617 words)

	British decipher Mandela's 1964 Rivonia tape
		Seven of the tapes were sent to Rob Perks, the library's oral history curator, whose team of technicians struggled to overcome a series of problems and retrieve the most famous speech of the trial.
		The Rivonia trial, named after the Johannesburg suburb where 16 leaders of the ANC were arrested, was recorded on two dictabelt machines using dictabelts, which recorded sound in grooves, as on an LP, and retrieved with a stylus.
		In addition, the British Library's own dictabelt machine was not compatible with the dictabelts from South Africa, a problem compounded by the different electricity voltages in the two countries.
	www.iol.co.za /general/avant_newsview.php?click_id=31&art_id=qw981803341952B216&set_id=6 (579 words)

	Encyclopedia: Dealey Plaza (Site not responding. Last check: 2007-10-17)
		Some assassination theories have concluded that a shot or shots came from the north grassy knoll during the assassination.
		After the committee finished its work, crosstalk from another radio channel of transmissions known to have been made a minute after the assassination was found on the dictabelt, proving that the sounds on the recording could not be the gunshots of the assassination.
		Because of persistent debate, answered and unanswered questions, and conspiracy theories surrounding the Kennedy assassination and the possible related role of the grassy knoll, the term "grassy knoll" has come to also be a modern slang expression indicating something may be suspicious or something that suggests that there are untold aspects.
	www.nationmaster.com /encyclopedia/Dealey-Plaza (1773 words)

	Audio Recording History - Gramophone Phonograph Tape Reel Cartridge Wire 78
		As the name implies, Dictabelts are flexible belts of vinyl.005" thick by 3 1/2 inches wide with a circumference of 12 inches, which allowed up to approximately 15 minutes of recording time per belt.
		Dictabelts when properly stored, are holding up amazingly well - especially when you consider that most magnetic tapes from even the late fifties and early 60's are now unplayable due to oxide shedding.
		Dictabelts were never intended as being archival media, though they have outlived many of their later to come magnetic tape media.
	www.videointerchange.com /audio_history.htm (11402 words)

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