An RTP-based synchronized hypermedia live lecture system for distance education

Authors:
Herng-Yow Chen;Yen-Tsung Chia;Gin-Yi Chen;Jen-Shin Hong
Affiliations:
Institute of Information Management, National Chi Nan University, Pu-Li, Nan-Tou, Taiwan, 545;-;-;Department of Computer Science and Information Engineering, National Chi Nan University, Pu-Li, Nan-Tou, Taiwan, 545
Venue:
MULTIMEDIA '99 Proceedings of the seventh ACM international conference on Multimedia (Part 1)
Year:
1999

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Abstract

In this article, we have introduced a “Live Synchronized Hypermedia Live Lecture (SHLL) System” using RTP to synchronize the live presentation of streaming video lecture, HTML-based lecture notes, and HTML page Navigation Events. The SHLL framework consists of three major modules: (1) SHLL Recorder- for recording the temporal information of the AV lecture and the HTML-based lecture notes navigation processes. (2) SHLL Event Server- for receiving, depositing, and multicasting SHLL events. (3) SHLL Browser- for presentation of the synchronized AV lecture and HTML-based lecture notes navigation.To manage the synchronization presentation of different media, we have proposed an RTP-based Multi-Sync synchronization model, which account for the human perception factors. To evaluate the performance of the proposed SHLL framework and synchronization model, a RealSystem-based prototype Synchronized HTML-AV Distance Lecture System has been implemented using Java/JavaScript and C. The prototype system certifies the feasibility of the proposed framework for synchronized hypermedia live multicasting.