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ThinkMind // AICT 2015, The Eleventh Advanced International Conference on Telecommunications // View article aict_2015_6_10_10021


An Efficient Buffer Delay Correction Algorithm to VoIP

Authors:
Fabio Sakuray
Robinson Hoto
Gean Breda
Leonardo Mendes

Keywords: Playout Delay; VoIP; Buffer Delay; MOS

Abstract:
Audio applications are widely used on the Internet today. In these applications, packets are considered lost if received after their playout time. Such applications require a playout buffer in the receiver for smoothing network delay variations to enable the reconstruction of a periodic form of the transmitted packets. The objective of buffer delay adjustment algorithms (BDA) is to control the packet loss rate using minimum buffer size to jitter smooth. However, current algorithms fail to obtain a particular packet loss percentage. This paper presents a definition of Optimum Buffer Delay (OBD), used to remove jitter and a technique to correct the buffer delay from any BDA applied between talkspurts, with the purpose of bring the packet loss percentage closer to the value defined by audio applications. This new technique is called Buffer Delay Correction Algorithm (BDCA).

Pages: 107 to 112

Copyright: Copyright (c) IARIA, 2015

Publication date: June 21, 2015

Published in: conference

ISSN: 2308-4030

ISBN: 978-1-61208-411-4

Location: Brussels, Belgium

Dates: from June 21, 2015 to June 26, 2015

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