Basic HTML version of Foils prepared 12 April 98

Foil 13 Video and audio formats

From NPAC Technology for Lecture Recording and Playback ASC Dayton OH Project Review -- 3 April 98. by Marek Podgorny
H.263 for low-bitrate (Internet) video
  • format/encoder enhanced to accommodate random access and error tolerance by adding I-frames
  • Bandwidth: variable, but starts at 9 Kbps
  • Quality: 3-10 fps, QCIF-CIF (9 Kbps=10 fps, QCIF)
  • Current player: both ActiveMovie and Java applet
Audio: ADPCM, GSM, MPEG-4
  • ADPCM: done, 32 kbps
  • GSM: codec done, integration in progress (13 Kbps)
  • MPEG-4: ongoing, slated for early July (6 Kbps)

© Northeast Parallel Architectures Center, Syracuse University, npac@npac.syr.edu

If you have any comments about this server, send e-mail to webmaster@npac.syr.edu.

Page produced by wwwfoil on Sun Nov 29 1998