By Topic

Development of a VoIP system implementing a high quality packet loss concealment technique

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

5 Author(s)

Speech quality of VoIP (voice over Internet protocol) may potentially be degraded by transmission errors such as packet loss and delay which are basically inevitable in best-effort communications. This study proposes an error concealment technique for such degradation by exploiting a receiver-based technique called pitch waveform replication. For improving the conventional technique, this study investigates a waveform reconstruction technique that also takes account of the pitch variation between the backward and forward frames of gap frames. From experimental results of objective and subjective evaluation, it is indicated that the proposed technique may potentially be useful for improving the speech quality, compared with the conventional technique. In addition, this study has also developed a hardware VoIP system that implements the proposed error concealment technique

Published in:

Electrical and Computer Engineering, 2005. Canadian Conference on

Date of Conference:

1-4 May 2005