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Downloading. User must wait for the entire file to transfer before viewing any part of it Seeking within the file almost immediate User gets the entire file, and can use it in any way they choose Quality dependent on how long the user is willing to wait for the file to download. Streaming.

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Downloading

Downloading

  • User must wait for the entire file to transfer before viewing any part of it

  • Seeking within the file almost immediate

  • User gets the entire file, and can use it in any way they choose

  • Quality dependent on how long the user is willing to wait for the file to download


Streaming

Streaming

  • File transferred to user in small parts, can view once the first part has been delivered

  • Seeking within the file requires communication with the streaming server and a delay while a new chunk of the file delivered

  • User does not receive a complete re-usable copy of the file

  • Quality dependent on the network bandwidth between the user and the streaming server


Streaming media players

Streaming media players

  • QuickTime

    • Free version limited in codecs it can play back

    • No version for Unix/Linux

  • RealPlayer

    • Free version limited in codecs it can play back

    • Free version hidden on download site

  • Windows Media Player

    • Free version limited in codecs it can play back

    • No version for Unix/Linux

    • Latest version not released for Mac


Digital audio and video at iu

Digital audio and video at IU

  • DLP

  • UITS

    • DMNS

    • DMS

    • TLTC

  • Radio/TV


Digital library program dlp

Can handle these formats:

VHS

DVD

Laserdisc

CD

Cassette

Open reel tape

Digitization and consulting services as part of the Digital Media and Image Center (DMIC)

Contact: Kara Alexander, Digital Media Specialist, [email protected]

Digital Library Program (DLP)


Digital media network services dmns

Digital Media Network Services (DMNS)

  • Division of UITS

  • Hosts IU streaming media servers

  • Service is free for IU academic and administrative units

  • Can stream Real, QuickTime, and Windows Media content

  • http://www.indiana.edu/~video/

  • [email protected]


Digital media services dms

Digital Media Services (DMS)

  • Digitization and derivative creation services for still images, audio, and video

  • System-wide service, based in Indianapolis

  • For-fee service

  • http://dms.iu.edu/

  • [email protected]


Teaching and learning technologies centers tltc

Teaching and Learning Technologies Centers (TLTC)

  • “Provides consulting and development for integrating technologies into university teaching and learning.”

  • http://www.indiana.edu/~tltl/

  • [email protected]


Radio tv

Radio/TV

  • Audio and video digitization in support of public radio and public television production services

  • Can do digitization for campus units for a fee

  • Contact: Scott Carmichael, [email protected]


Video e reserves project

Video E-Reserves Project

  • Pilot tests performed Spring 2004 (2 classes) and Fall 2004 (5 classes)

  • Pilots covered VHS and DVD

  • Digitization and transcoding performed in DMIC

    • 2 videos in Fall 2004 sent to DMS for comparison


Video e reserves workflow

Video E-Reserves Workflow

MJPEG-A

UITS Streaming Servers

QuickTime MPEG4 640x480

RealVideo 640x480

RealVideo 320x240

QuickTime MPEG4 320x240

RealVideo 240x180

QuickTime MPEG4 240x180

RealVideo 160x120

QuickTime MPEG4 160x120

MDSS


Video e reserves access

Video E-Reserves Access

IU Libraries E-Reserves site for course listing available titles

Dynamically generated Web page on DLP server listing available versions of video

UITS Streaming Servers


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