avBB.ppt

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avBB.ppt

  1. 1. Downloading <ul><li>User must wait for the entire file to transfer before viewing any part of it </li></ul><ul><li>Seeking within the file almost immediate </li></ul><ul><li>User gets the entire file, and can use it in any way they choose </li></ul><ul><li>Quality dependent on how long the user is willing to wait for the file to download </li></ul>
  2. 2. Streaming <ul><li>File transferred to user in small parts, can view once the first part has been delivered </li></ul><ul><li>Seeking within the file requires communication with the streaming server and a delay while a new chunk of the file delivered </li></ul><ul><li>User does not receive a complete re-usable copy of the file </li></ul><ul><li>Quality dependent on the network bandwidth between the user and the streaming server </li></ul>
  3. 3. Streaming media players <ul><li>QuickTime </li></ul><ul><ul><li>Free version limited in codecs it can play back </li></ul></ul><ul><ul><li>No version for Unix/Linux </li></ul></ul><ul><li>RealPlayer </li></ul><ul><ul><li>Free version limited in codecs it can play back </li></ul></ul><ul><ul><li>Free version hidden on download site </li></ul></ul><ul><li>Windows Media Player </li></ul><ul><ul><li>Free version limited in codecs it can play back </li></ul></ul><ul><ul><li>No version for Unix/Linux </li></ul></ul><ul><ul><li>Latest version not released for Mac </li></ul></ul>
  4. 4. Digital audio and video at IU <ul><li>DLP </li></ul><ul><li>UITS </li></ul><ul><ul><li>DMNS </li></ul></ul><ul><ul><li>DMS </li></ul></ul><ul><ul><li>TLTC </li></ul></ul><ul><li>Radio/TV </li></ul>
  5. 5. Digital Library Program (DLP) <ul><li>Can handle these formats: </li></ul><ul><ul><li>VHS </li></ul></ul><ul><ul><li>DVD </li></ul></ul><ul><ul><li>Laserdisc </li></ul></ul><ul><ul><li>CD </li></ul></ul><ul><ul><li>Cassette </li></ul></ul><ul><ul><li>Open reel tape </li></ul></ul><ul><li>Digitization and consulting services as part of the Digital Media and Image Center (DMIC) </li></ul><ul><li>Contact: Kara Alexander, Digital Media Specialist, kalexand@indiana.edu </li></ul>
  6. 6. Digital Media Network Services (DMNS) <ul><li>Division of UITS </li></ul><ul><li>Hosts IU streaming media servers </li></ul><ul><li>Service is free for IU academic and administrative units </li></ul><ul><li>Can stream Real, QuickTime, and Windows Media content </li></ul><ul><li>http://www.indiana.edu/~video/ </li></ul><ul><li>[email_address] </li></ul>
  7. 7. Digital Media Services (DMS) <ul><li>Digitization and derivative creation services for still images, audio, and video </li></ul><ul><li>System-wide service, based in Indianapolis </li></ul><ul><li>For-fee service </li></ul><ul><li>http://dms.iu.edu/ </li></ul><ul><li>[email_address] </li></ul>
  8. 8. Teaching and Learning Technologies Centers (TLTC) <ul><li>“ Provides consulting and development for integrating technologies into university teaching and learning.” </li></ul><ul><li>http://www.indiana.edu/~tltl/ </li></ul><ul><li>[email_address] </li></ul>
  9. 9. Radio/TV <ul><li>Audio and video digitization in support of public radio and public television production services </li></ul><ul><li>Can do digitization for campus units for a fee </li></ul><ul><li>Contact: Scott Carmichael, sacarmic@indiana.edu </li></ul>
  10. 10. Video E-Reserves Project <ul><li>Pilot tests performed Spring 2004 (2 classes) and Fall 2004 (5 classes) </li></ul><ul><li>Pilots covered VHS and DVD </li></ul><ul><li>Digitization and transcoding performed in DMIC </li></ul><ul><ul><li>2 videos in Fall 2004 sent to DMS for comparison </li></ul></ul>
  11. 11. Video E-Reserves Workflow MJPEG-A MDSS QuickTime MPEG4 320x240 QuickTime MPEG4 640x480 QuickTime MPEG4 240x180 QuickTime MPEG4 160x120 RealVideo 320x240 RealVideo 240x180 RealVideo 160x120 RealVideo 640x480 UITS Streaming Servers
  12. 12. Video E-Reserves Access IU Libraries E-Reserves site for course listing available titles UITS Streaming Servers Dynamically generated Web page on DLP server listing available versions of video

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