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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

Susanne.Naegele-Jackson@rrze.uni-erlangen.de


Project partners and sponsor
Project Partners and Sponsor

  • RRZE/University of Erlangen

  • IRT/ Munich

  • BR

  • HFF

  • TUM

  • DFN

Susanne.Naegele-Jackson@rrze.uni-erlangen.de


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

Susanne.Naegele-Jackson@rrze.uni-erlangen.de


Benefits
Benefits

  • reduced production costs

  • material for universities / distant education

  • promotional benefits for the universities

  • educational television

    • Collegium Alexandrinum

Susanne.Naegele-Jackson@rrze.uni-erlangen.de


Production and distribution
Production and Distribution

  • equipment

    • video, audio, editing

  • network

  • servers

  • accessibility and statistics

Susanne.Naegele-Jackson@rrze.uni-erlangen.de


Videoproduction
Videoproduction

  • cameras

    • (semi-) professional

    • general orientation

  • codecs

  • scanconverter for transparencies

    • alternating with camera

  • monitors for quality control

Susanne.Naegele-Jackson@rrze.uni-erlangen.de


Audioproduction
Audioproduction

  • wireless speaker microphones

  • codecs

    • embedded audio

  • audio for directing and monitoring

Susanne.Naegele-Jackson@rrze.uni-erlangen.de


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

Susanne.Naegele-Jackson@rrze.uni-erlangen.de


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

Susanne.Naegele-Jackson@rrze.uni-erlangen.de


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

Susanne.Naegele-Jackson@rrze.uni-erlangen.de


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)

Susanne.Naegele-Jackson@rrze.uni-erlangen.de


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

Susanne.Naegele-Jackson@rrze.uni-erlangen.de


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)

Susanne.Naegele-Jackson@rrze.uni-erlangen.de


Distribution and access
Distribution and Access

  • www.uni-tv.net

Susanne.Naegele-Jackson@rrze.uni-erlangen.de


Statistics
Statistics

  • March 2000

    • 2939 hits

    • 2596 files

    • 669 pageviews

    • 704 sessions

    • 61436840 Kbytes sent

Susanne.Naegele-Jackson@rrze.uni-erlangen.de


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

Susanne.Naegele-Jackson@rrze.uni-erlangen.de


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

Susanne.Naegele-Jackson@rrze.uni-erlangen.de


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