Scripted HTML version of Foils prepared August 25,1997

Foil 42 Some (New) Web Technologies in a Nutshell - MultiMedia

From Overview of Web Technologies for "Programming for the Web" CPS406/606 Fall 97 -- August 25,1997. by Nancy McCracken, Tom Scavo, Geoffrey Fox *
(Prepared for SC96)
Digital Video and Audio. This will enable collaboration and dissemination of fixed assets (audio/video clips) stored in multi-media databases or of information encoded in real-time.
  • RealAudio commercial product uses wavelet-like compression and delivers AM quality audio over 28.8Kbaud lines. Therefore works on Internet and can combine with images (or Interactive Java animations) for Web Conferencing and Consulting
Note these are typically streaming and not "batch" approachs. Current default Web downloads video to client before playing and this approach cannot scale!
Can use traditional (relational) databases to store metadata and text with which to index video.
Digital video works well over ISDN (128 kbits) but for full screen needs about .5 megabits per second even with wavelets
This will be CNN/Network digital delivery technology for future infinite cable channel world



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