Measuring the dynamic performance of video conferencing systems

Authors

  • David I. Havelock Institute for Microstructural Science, NRC, 1200 Montreal Rd., Ottawa, Ont. K1A 0R6
  • David Green Institute for Information Technology NRC, 1200 Montreal Rd., Ottawa, Ont. K1A 0R6

Keywords:

Acoustic variables measurement, Audio acoustics, Metric system, Microphones, Probability distributions, Microphone array, Probability distribution function (pdf), Video frames, Zero delay

Abstract

A metric system for the ability of a video conferencing system to follow the talker transitions in conversion with multiple participants was developed. The metric comprising the mean and maximum systems delays has been measured in a system-independent manner and is suitable for intercomparisons. The shift of the audio probability distribution function (pdf) relative to the video is due mainly due to the message packet queue used for steering the microphone array in the prototype Panocam system. The video frame buffer memory allows a PDF with a non-zero value at zero delay.

Downloads

Published

2005-09-01

How to Cite

1.
Havelock DI, Green D. Measuring the dynamic performance of video conferencing systems. Canadian Acoustics [Internet]. 2005 Sep. 1 [cited 2023 Jun. 3];33(3):54-5. Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1742

Issue

Vol. 33 No. 3 (2005)

Section

Proceedings of the Acoustics Week in Canada

License

Copyright on articles is held by the author(s). The corresponding author has the right to grant on behalf of all authors and does grant on behalf of all authors, a worldwide exclusive licence (or non-exclusive license for government employees) to the Publishers and its licensees in perpetuity, in all forms, formats and media (whether known now or created in the future)
i)    to publish, reproduce, distribute, display and store the Contribution;
ii)    to translate the Contribution into other languages, create adaptations, reprints, include within collections and create summaries, extracts and/or, abstracts of the Contribution;
iii)    to exploit all subsidiary rights in the Contribution,
iv)    to provide the inclusion of electronic links from the Contribution to third party material where-ever it may be located;
v)    to licence any third party to do any or all of the above.