Automatic Addition and Deletion of clients in VoIP Conferencing

Prasad, Venkatesha R and Kuri, Joy and Jamadagrli, HS and Dagale, Haresh (2001) Automatic Addition and Deletion of clients in VoIP Conferencing. In: Sixth IEEE Symposium on Computers and Communications, 2001. ISCC 2001, 3-5 July, Hammamet,Tunisia, 386 -391.

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Abstract

In a conference, considering the packets only from a set of selected clients can reduce the degradation of the quality of speech because mixing packets from all clients can lead to lack of clarity in the speech of any participants. The automatic selection should be smooth and should not cause frequent interruptions. A method of selecting the clients for mixing is suggested here based on a new quantifier of the voice activity called loudness number (LN). The dependence of the loudness number on the amplitude of the packet at present and the past activity is clearly brought out. The structure of the packet used has been explained. A method to avoid echo and enhance the quality of the conference is presented. The contributions of the paper are expected to aid in the implementation of H.323 recommendations for the multipoint processors (MP). A working prototype based on the proposed loudness number is already functional.

Item Type:	Conference Paper
Publisher:	IEEE
Additional Information:	Copyright 1990 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Keywords:	Loudness Number;Call Processor;Selector
Department/Centre:	Division of Electrical Sciences > Electronic Systems Engineering (Formerly Centre for Electronic Design & Technology)
Date Deposited:	15 Feb 2006
Last Modified:	19 Sep 2010 04:23
URI:	http://eprints.iisc.ac.in/id/eprint/5372

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