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Proceedings Paper

Issues of audio quality for video conferencing
Author(s): Qi Han; Jingli Zhou; Shengsheng Yu
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Paper Abstract

When choosing a video conferencing system ,it is natural for the potential buyer to look very closely at the quality of the audio. In order to assure a high-quality video conferencing, it is important to have a good picture, but it is vital to have high quality audio. The reason for this is that most of the information transferred in a video conference is actually in the audio channel. Not only is good audio mandatory to the effective exchange of information exchange of information, it has also been found that it can effect the perceived video quality. In this ape several key issues on audio quality are discussed. Since audio delay is among the most vexing problem, each video conferencing system has to make efforts to shorten it. What causes audio delay, how to measure actual delay and how to shorten it is provided in detail. Finally several strategies about system design are presented in order to improve audio quality. All the above are based on the video conferencing systems developed according to H.324 and suitable to video conferencing system implemented all using software.

Paper Details

Date Published: 22 January 1999
PDF: 8 pages
Proc. SPIE 3528, Multimedia Systems and Applications, (22 January 1999); doi: 10.1117/12.337440
Show Author Affiliations
Qi Han, Huazhong Univ. of Science and Technology (China)
Jingli Zhou, Huazhong Univ. of Science and Technology (China)
Shengsheng Yu, Huazhong Univ. of Science and Technology (China)

Published in SPIE Proceedings Vol. 3528:
Multimedia Systems and Applications
Andrew G. Tescher; Bhaskaran Vasudev; V. Michael Bove Jr.; Barbara Derryberry, Editor(s)

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