Vanderbilt Television News Archive - PowerPoint PPT Presentation

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Vanderbilt Television News Archive

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  1. Vanderbilt Television News Archive Off-air archiving of news broadcasts from national television networks NDIIPP Partners Meeting July 2008 Breakout session: Broadcast and Satellite Television Marshall BreedingDirector for Innovative Technologies and Research Vanderbilt University http://staffweb.library.vanderbilt.edu/breeding http://www.librarytechnology.org/ http://tvnews.vanderbilt.edu

  2. Talking points 10:40 Marshall Breeding, Vanderbilt, the classic example. Where does the incoming signal come from? About the digital capture setup, i.e., the workstation. What sort of worker does the capture work. About the archiving format: what were the considerations, what was the decision? About the quantity or rate of capture. About metadata (just a little!). About producing "access" copies. About the Web site. Who are users?

  3. The Vanderbilt Television News Archive Off-air capture and archiving of US National News broadcasts Established August 5, 1968 ABC, CBS, NBC CNN added in 1995 (One hour / day) Fox News added in 2004 (One hour / day) Specials – selected news content beyond regular news broadcasts

  4. Signal sources • Standard cable service • Comcast • Roof-top antennas • Satellite service • Not reliable enough to justify • Unable to get agreements to tap non-local feeds • May add to gain access to additional news networks

  5. Digital Capture hardware and software

  6. Digital Recording system • Manual digital system • Dell OptiPlex towers • Automatic 24/7 recording system • Dell PowerEdge rack-mount servers • Need a highly reliable redundant environment • We only get one chance to record each program

  7. Digital Video Workstation • Dual purpose • Off-air recording of newscasts • Conversion of videotapes

  8. Digital Recording • Hauppauge WinTV PVR 350 tuner card • Video composite output to OSD overlay • OSD output to Optibase Moviemaker video input

  9. Digitizing Workstation

  10. Digital Studio 2

  11. Digital Studio 3

  12. Staffing issues • Work with staff members of the Archive that have evolved through many generations of equipment and technology • Strong dedication to the mission • Able to adopt each new generation of technology to the Archive’s work

  13. About the quantity or rate of capture • Quality considerations included • File size vs video quality • Dealing with off-air capture, not studio quality • Aggressive data rate and resolution would not lead to perceptible improvements in quality

  14. MPEG-2 Options • NTSC Signal Format • Main Profile @ Main Level • Program Stream (video/audio multiplexed) • 29.97 frames per second • 6mb/sec video bit rate • D2 Resolution: 720 x 480 • Audio Sampling: 44 kHz • Audio bit rate 192 kb/sec

  15. Metadata • Qualified Dublin core • Abstract + structured fields • Headline • Date / Begin-end times • Reporters • One record / story (25+stories / broadcast) • Web-based process for submitting metadata

  16. Metadata

  17. Access • TV news Web site • On-campus: Ex Libris Primo interface

  18. Access copies • Streaming currently offered in Realmedia format • Automatically transcoded from MPEG-2 to RM upon initial ingestion • Realmedia was best choice in 2002. Today most users prefer Flash or other formats

  19. TV News web site • Locally developed content management environment • Windows 2003 Server / Dell PowerEdge server hardware • MySQL database • Perl-based interface layer • E-commerce for loan requests • IP-authentication for subscriber access

  20. Users • Academic • Individual researchers • Journalists • Legal

  21. Registered Users

  22. Questions? Marshall Breeding Marshall.breeding@vanderbilt.edu