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„Uni-TV“. Distributed TV Productions and Video-on-Demand Services at Universities. Outline. introduction distributed production in studio quality distribution and access problems and experiences focus and future outlook. Project Partners and Sponsor. RRZE/University of Erlangen

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uni tv

„Uni-TV“

Distributed TV Productions and Video-on-Demand Services at Universities

outline
Outline
  • introduction
  • distributed production in studio quality
  • distribution and access
  • problems and experiences
  • focus and future outlook

[email protected]

project partners and sponsor
Project Partners and Sponsor
  • RRZE/University of Erlangen
  • IRT/ Munich
  • BR
  • HFF
  • TUM
  • DFN

[email protected]

concept
Concept
  • transmissions from the auditorium (Univ. Erlangen, Univ. Munich) to the IRT/Munich
  • online editing at the studio/IRT according to the script provided by the HFF
  • retransmission of the edited material to the auditorium for control and recording
  • distribution over the internet/intranet
  • offline editing for television broadcasting via satellite and cable

[email protected]

benefits
Benefits
  • reduced production costs
  • material for universities / distant education
  • promotional benefits for the universities
  • educational television
    • Collegium Alexandrinum

[email protected]

production and distribution
Production and Distribution
  • equipment
    • video, audio, editing
  • network
  • servers
  • accessibility and statistics

[email protected]

videoproduction
Videoproduction
  • cameras
    • (semi-) professional
    • general orientation
  • codecs
  • scanconverter for transparencies
    • alternating with camera
  • monitors for quality control

[email protected]

audioproduction
Audioproduction
  • wireless speaker microphones
  • codecs
    • embedded audio
  • audio for directing and monitoring

[email protected]

studio for editing at the irt
Studio for editing at the IRT
  • online editing (MPEG-2 4:2:2)
  • offline editing w/trailer, headers
  • possibility for live broadcasting with BR

[email protected]

network
Network
  • Gigabit Testbed South/Berlin
    • 3 x 2.5 Gbps ATM
    • 3 channels
    • 1 fiber pair
  • University network in Erlangen
  • city network (M‘net) in Munich

[email protected]

transmission requirements
Transmission Requirements
  • cameras
    • 3 x 50 Mbps CBR, VBRrt ATM
  • camera for monitoring/directing
    • 1 x 15 Mbps CBR, VBRrt ATM
  • audio signals

[email protected]

distribution
Distribution
  • television (cable and satellite (Astra))
    • fixed 30-minute time slot on the educational channel „BR-a“ as part of the series „Alpha Campus“
  • internet/intranet
    • individual download/streaming (MPEG-1, MPEG-2 4:2:0)
    • near-Video-On-Demand via IP/Mbone reservation (H.261)

[email protected]

bandwidth requirements distribution
Bandwidth Requirements Distribution
  • product after online-editing
    • 1 x 50 Mbps
  • product over the internet/intranet
    • 15 Mbps MPEG-2 4:2:0
    • 2 Mbps MPEG-1
  • product Near-VoD via IP/Mbone
    • 1 Mbps H.261

[email protected]

server
Server
  • server capacity at the IRT for editing
    • 3 camera signals for editing (MPEG-2 4:2:2) with audio signals (3 hrs)
    • 100 GigaByte per class
  • server at the RRZE for Video-on-Demand
    • 1.2 GigaByte per class (MPEG-2 4:2:0 broadcasting format)
    • 400 MegaByte per class (MPEG-1)

[email protected]

statistics
Statistics
  • March 2000
    • 2939 hits
    • 2596 files
    • 669 pageviews
    • 704 sessions
    • 61436840 Kbytes sent

[email protected]

problems and solutions
Problems and Solutions
  • problems with equipment
    • codecs, camera settings, back-up team
  • problems concerning the presentation
    • subject matters
    • speakers and their preferences
    • pointers

[email protected]

current focus and future outlook
Current Focus and Future Outlook
  • improved quality / fine-tuning
  • improved accessibility/distribution
  • indirect camera remote control
  • VBRrt ATM PVCs
  • latency of codecs
  • regular classes for credits
  • questions from the audience

[email protected]

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