Delay Effect on Conversational Quality in Telecommunication Networks: Do We Mind?

  • Jan Holub
  • Ondrej Tomiska
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 44)


Transmission delays are unwanted effects of every day telecommunication systems. These effects influence the overall quality of a telephony connection as perceived by end users. This chapter summarizes known subjective experiments testing the influence of delays on the quality perceived by end users. In order to find a possible explanation for the differences in the results of those experiments a new conversational test was conducted. The new subjective tests are also presented and compared to already existing experiment results.


Transmission Delay Mean Opinion Score Test Person Telecommunication Network Subjective Test 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



This work has been supported by the Czech ministry of Education: MSM 6840770014 “Research in the Area of the Prospective Information and Navigation Technologies.”


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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  1. 1.Dept. of Measurement K13138FEE CTU PraguePrague 6Czech Republic

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