Peter Schallauer & Franz Höller
JOANNNEUM RESEARCH & HS-ART, Austria
The DAVID project studies how to keep digital audio-visual content usable in the face of adversity: obsolescence, media degradation, and indeed failures in the very people, processes and systems designed to keep digital content safe. For file and tape based digital video DAVID analyses the origin of potential damage and its consequences on the usability of content, detects and restores damage that has already happened and develops strategies for avoiding future damage in a way that balances long-term costs, risks of loss, and content quality.
The presentation will give an overview of the major findings of the two and a half year research project and will especially focus on audiovisual preservation metadata standardisation (MPEG MP-AF), and on the detection and restoration of damage in digitised and born digital audiovisual content. We will demonstrate solutions to detect and repair errors of file based audiovisual objects in the container, bitstream and baseband content level, e.g. we will show how digital tape dropouts (Digital BETACAM, IMX and others), dead pixels and field issues and other baseband errors can be detected and restored automatically.