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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 Breeding Director for Innovative Technologies and Research Vanderbilt University

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vanderbilt television news archive

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

talking points
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?

the vanderbilt television news archive

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

signal sources
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
digital recording system
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
digital video workstation
Digital Video Workstation
  • Dual purpose
    • Off-air recording of newscasts
    • Conversion of videotapes
digital recording
Digital Recording
  • Hauppauge WinTV PVR 350 tuner card
  • Video composite output to OSD overlay
  • OSD output to Optibase Moviemaker video input
staffing issues
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
about the quantity or rate of capture
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
mpeg 2 options
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
metadata
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
access
Access
  • TV news Web site
  • On-campus: Ex Libris Primo interface
access copies
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
tv news web site
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
users
Users
  • Academic
  • Individual researchers
  • Journalists
  • Legal
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