Charlotte, North Carolina
June 20, 1999
June 20, 1999
June 23, 1999
4.427.1 - 4.427.5
Production of Digital Internet Video Material for Streaming Applications
Z. Chambers, M. B. Taylor, J. Iannelli and A. J. Baker University of Tennessee Knoxville, TN 37996-2030
The rapid growth of Internet-based teaching curricula has prompted a new direction for distance education - the streaming of live video lectures to remote student sites for on-demand education. This live material is exceptional while the post-processed static files are better than nearly all currently produced streaming video formats. The necessary compression software and computer hardware is readily available and surprisingly inexpensive. The development of quality video material, however, is a time-consuming process which requires both technical savvy and an artistic touch. This paper therefore provides a detailed recipe for creating digital video material for streaming applications.
The emergence of the Internet, and in particular high performance communications, has allowed the traditional classroom-based educational environment to transcend to a multimedia, computer- driven venue, admitting global students whose only participation requirement is a modern computer with an Internet connection. The deployment of synchronized audio and video to support a developed static curriculum, i.e., HTML and PDF documents, fosters a sense of “human-ness” to the remote user while allowing an entire curriculum to be “taught” at any time. The advent of streaming compression technology has removed the restrictive file-size limitations of previous video compression-decompression algorithms (codecs). A one hour video lecture which is nearly 10 Gigabytes in uncompressed digital video form can be compressed to under 6 Megabytes and streamed to a remote user for real-time reception through a 28.8Kbps modem.
Basic recipe directions are as follows. The video is first recorded with a Canon Optura digital camcorder. Next, it is captured via an Osprey 100 video capture card to an 18 GB Quantum hard drive, connected to a Pentium II 333 PC, and hand-edited in Adobe Premiere. The audio track is exported, noise-reduced, and amplified for optimum clarity with CoolEdit. The audio track is then recombined with the video and compressed using the Indeo 5.06 codec. Having completed the first round of compression, the file is then archived onto a compact disc for future use. The file is then further compressed, using RealMedia’s propriety compression technology, for uploading to a Linux powered video server. Students are able to access the videos using nothing more than a standard web browser and the free RealPlayer plugin.
Iannelli, J., & Chambers, Z., & Taylor, M. B., & Baker, A. J. (1999, June), Production Of Digital Internet Video Material For Streaming Applications Paper presented at 1999 Annual Conference, Charlotte, North Carolina. https://peer.asee.org/8072
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