Sciweavers

Share
COMCOM
2006

On the impact of loss and delay variation on Internet packet audio transmission

8 years 10 months ago
On the impact of loss and delay variation on Internet packet audio transmission
The quality of audio in IP telephony is significantly influenced by various factors, including type of encoder, delay, delay variation, rate and distribution of packet loss, and type of error concealment. Hence, the performance of IP telephony systems is highly dependent on understanding the contribution of these factors to audio quality, and their impact on adaptive transport mechanisms such as error and buffer control. We conducted a large-scale audio transmission experiment over the Internet in a 12-month period in order to evaluate the effects and the correlation of such parameters on audio transmission over IP. We have noticed that the correlation of loss and delay is not linear, but stronger correlation is observed as the delay approaches certain thresholds. We have made a number of new observations on various delay thresholds that are significant for loss prediction for adaptive audio transmission over IP networks. We also have made new observations to assess the audio quality ...
Lopamudra Roychoudhuri, Ehab S. Al-Shaer, Gregory
Added 11 Dec 2010
Updated 11 Dec 2010
Type Journal
Year 2006
Where COMCOM
Authors Lopamudra Roychoudhuri, Ehab S. Al-Shaer, Gregory B. Brewster
Comments (0)
books