Introduction
  Introduction
   Multimedia: the use of sound, images, graphics 
   Multimedia: the use of sound, images, graphics 
   and video to make Web pages “come alive”
   and video to make Web pages “come alive”
    The “sizzle” of the Web
       “  ”
    The  sizzle  of the Web
   Common practice: streaming to reduce delays 
   Common practice: streaming to reduce delays 
   while downloading
   while downloading
  What is Multimedia?
  What is Multimedia?
   Text + art + animation + sound + video --> 
   Text + art + animation + sound + video --> 
   Multimedia Elements
   Multimedia Elements
   By computer or other electronic or digitally 
   By computer or other electronic or digitally 
   manipulated means
   manipulated means
   Use technology and imagination
   Use technology and imagination
   Hold users’ attention
   Hold users’ attention
   Give user the chance to interact
   Give user the chance to interact
 Audio and Video
  Audio and Video
  Audio and Video
  Audio and Video
   Encoding and compression determine a file’s 
   Encoding and compression determine a file’s 
   format.
   format.
   Codec (compressor/decompressor, an 
   Codec (compressor/decompressor, an 
   encoding algorithm) transforms raw audio or 
   encoding algorithm) transforms raw audio or 
   video into a format that Web browsers can 
   video into a format that Web browsers can 
   interpret and display
   interpret and display
   Encoding applications
   Encoding applications
   Important to have: format converters
   Important to have: format converters
  Background sound
   Background sound
   bgsound element:
   bgsound element:
    src, loop, balance and volume
    src, loop, balance and volume
  
  
  
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