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Wednesday, May 15 • 2:30pm - 3:00pm
(Electronic Media) TBC Under Control: Suggestion For A New Documentation Method For the Digitization Of Analog Video

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The active preservation of analog video heritage has its roots in the late 1980ies, when the migration of the diverse analog open reel and cassette formats was state of the art. The practice has shifted to digitization and the storage as digital video files. Nonetheless the transfer process is still dependent on the original mostly obsolete and erratic (professional) playback devices and additional equipment like Time Base Correctors (TBC). TBCs play a very important role in the digitization process. They facilitate the compensation of artifacts like dropouts and (sync) timing errors. But at the same time they function as processing amplifiers. Therefore TBCs offer the possibility of optimizing the signal and simultaneously entail the risk of manipulating and altering the signal in an undesired way. The study aims to find a comprehensive and reproducible method for documentation and quality control to identify and to objectify the individual key parameters of the applied TBCs as well as to ensure the traceability of the set TBC adjustments chosen for each digitization. To obtain full control of the process and to document all artifacts induced into the video image by a TBC we have developed a specific set of test sequences. The analysis of the differences between the source signal and the processed signal thus offers a characterization of the image artifacts caused by a TBC. Our test sequences will allow a well informed decision making process when evaluating the best TBC for a planned digitization project.

avatar for Agathe Jarczyk

Agathe Jarczyk

Conservator, Atelier für Videokonservierung
Agathe Jarczyk is a Conservator of Modern Materials and Media. Since 2008, Jarczyk is the owner of the “Studio for Video Conservation“ in Berne, Switzerland. Her studio focuses on conservation treatment and caretaking of video artworks for numerous Swiss and international museums... Read More →
avatar for Sophie Bunz

Sophie Bunz

Time-based Media Art Conservator, Studio for Video Conservation
Sophie Bunz completed a Masters program in Conservation-Restoration of Modern Materials and Media at Bern University of the Arts, Switzerland in 2016. After her studies she held a fellowship at the ZKM | Center for Art and Media Karlsruhe, Germany and worked as an assistant for the... Read More →

Wednesday May 15, 2019 2:30pm - 3:00pm EDT
Passamaquoddy/Brothertown Rooms Sky Convention Center, Mohegan Sun
  Specialty Session, Electronic Media