Technical aspects of the digitization of audiovisual holdings
DOI:
https://doi.org/10.3145/epi.2012.sep.12Keywords:
Audiovisual archives, Digital preservation, Digitization, Digital video, File formats, Data compression.Abstract
The audiovisual holdings of archives, libraries and museums are in danger due to the degradation of analogical content recorded on tapes. The article lists the possible damages suffered by videotapes as well as the problems posed by the technical obsolescence of equipment needed to read them. There is an international consensus that digitalization is the best way to preserve videotapes. Digitization is not an easy process considering the complexity of video´s digital file formats, which include rich multimedia wrappers and multiple standards for compressing video and audio. Technical decisions should specifically address the needs of each different service, which is illustrated with a case study on audiovisual recordings from local televisions in Spain.
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