Forensic Analysis of Time Markers of Digital Recordings

The article presents the results of summarizing expert practice on the examination of the features of digital video and sound recordings, which make it possible to determine the time of file creation and date of the recorded events. The author introduces the concept of “time marker” and proposes the...

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Main Author: S. M. Petrov
Format: Article
Language:Russian
Published: Ministry of Justice of the Russian Federation, Russian Federal Centre of Forensic Science 2021-04-01
Series:Теория и практика судебной экспертизы
Subjects:
Online Access:https://www.tipse.ru/jour/article/view/649
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author S. M. Petrov
author_facet S. M. Petrov
author_sort S. M. Petrov
collection DOAJ
description The article presents the results of summarizing expert practice on the examination of the features of digital video and sound recordings, which make it possible to determine the time of file creation and date of the recorded events. The author introduces the concept of “time marker” and proposes the classification of time markers in the file name, time attributes, and metadata by form and source of origin. The basic principles of time representation by various file systems are stated. The relationships between different time markers for original records and records made in other ways are analyzed. The article provides examples of using time markers to diagnose the method of making a record.Various types of time markers that are part of the recorded signal are considered. It is shown which of the recorded events can act as time markers. The author also analyses the possibility of dating using astronomical events. Differences between absolute and relative dating are considered concerning the study of audio and video files. Conclusions are drawn about the significance of the study of time markers for diagnosing the method of making a signalogram, performing relative or absolute dating of recorded events, or technological processes of making a signalogram.
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issn 1819-2785
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language Russian
publishDate 2021-04-01
publisher Ministry of Justice of the Russian Federation, Russian Federal Centre of Forensic Science
record_format Article
series Теория и практика судебной экспертизы
spelling doaj-art-afb0ec4a833c48c69d75a63737346e242025-08-04T10:23:09ZrusMinistry of Justice of the Russian Federation, Russian Federal Centre of Forensic ScienceТеория и практика судебной экспертизы1819-27852587-72752021-04-01161697710.30764/1819-2785-2021-1-69-77566Forensic Analysis of Time Markers of Digital RecordingsS. M. Petrov0Kaliningrad Laboratory of Forensic Science of the Ministry of Justice of the Russian FederationThe article presents the results of summarizing expert practice on the examination of the features of digital video and sound recordings, which make it possible to determine the time of file creation and date of the recorded events. The author introduces the concept of “time marker” and proposes the classification of time markers in the file name, time attributes, and metadata by form and source of origin. The basic principles of time representation by various file systems are stated. The relationships between different time markers for original records and records made in other ways are analyzed. The article provides examples of using time markers to diagnose the method of making a record.Various types of time markers that are part of the recorded signal are considered. It is shown which of the recorded events can act as time markers. The author also analyses the possibility of dating using astronomical events. Differences between absolute and relative dating are considered concerning the study of audio and video files. Conclusions are drawn about the significance of the study of time markers for diagnosing the method of making a signalogram, performing relative or absolute dating of recorded events, or technological processes of making a signalogram.https://www.tipse.ru/jour/article/view/649forensic examination of digital recordingssignalogramrecording timetime marker
spellingShingle S. M. Petrov
Forensic Analysis of Time Markers of Digital Recordings
Теория и практика судебной экспертизы
forensic examination of digital recordings
signalogram
recording time
time marker
title Forensic Analysis of Time Markers of Digital Recordings
title_full Forensic Analysis of Time Markers of Digital Recordings
title_fullStr Forensic Analysis of Time Markers of Digital Recordings
title_full_unstemmed Forensic Analysis of Time Markers of Digital Recordings
title_short Forensic Analysis of Time Markers of Digital Recordings
title_sort forensic analysis of time markers of digital recordings
topic forensic examination of digital recordings
signalogram
recording time
time marker
url https://www.tipse.ru/jour/article/view/649
work_keys_str_mv AT smpetrov forensicanalysisoftimemarkersofdigitalrecordings