ISCA Archive PQS 2006
ISCA Archive PQS 2006

Effects of network architecture on perceived audio quality

Jan Erik Voldhaug, Erik Hellerud, Astrid Undheim, Erling Austreim, U. Peter Svensson, Peder J. Emstad

Subjective testing based on the ITU-R MUSHRA method has been used to evaluate the perceived quality of audio signals exposed to packet loss. A congested best-effort and a Differentiated Services (DiffServ) router were simulated to find models for the packet loss processes. Two different models were combined with three packet loss rates, three audio clips and two different error concealment (EC) schemes and the resulting audio quality was evaluated. Results show statistically significant effects of both audio clip, EC, and packet loss rate on perceived quality. No significant difference was found between the two network architectures, but interaction effects between the network architectures and both audio clip and packet loss rate were observed.


Cite as: Voldhaug, J.E., Hellerud, E., Undheim, A., Austreim, E., Svensson, U.P., Emstad, P.J. (2006) Effects of network architecture on perceived audio quality. Proc. 2nd ISCA/DEGA Tutorial and Research Workshop on Perceptual Quality of Systems (PQS 2006), 137-142

@inproceedings{voldhaug06_pqs,
  author={Jan Erik Voldhaug and Erik Hellerud and Astrid Undheim and Erling Austreim and U. Peter Svensson and Peder J. Emstad},
  title={{Effects of network architecture on perceived audio quality}},
  year=2006,
  booktitle={Proc. 2nd ISCA/DEGA Tutorial and Research Workshop on Perceptual Quality of Systems (PQS 2006)},
  pages={137--142}
}