Basic HTML version of Foils prepared 11 May 1997

Foil 16 Multimedia types

From Introduction to World Wide Web (WWW) ECS400 Senior Undergraduate Course -- Spring Semester 97. by Nancy J. McCracken *

Image types:
  • GIF - Color image format where each pixel is represented from 1-8 bits. Compressed to a very compact size for images with not many colors.
  • JPEG - Color image format where each pixel represented by 24 bits, giving so-called "true color". Also compressed for reasonable sizes of images with high-resolution, photographic quality.
  • PNG - new portable networks graphics format designed for web
Audio types:
  • Basic audio types are au and snd, supported by most audio players. The entire audio file is downloaded before it is played.
  • RealAudio - ram - a format which allows the plug-in to play the audio file as it is downloaded.
Video types:
  • Quicktime - Apple video format supports synchronized audio and video and has compression schemes.
  • MPEG - is most videly used but is not synchronized. Compression scheme records differences between frames.
  • Motion JPEG



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