Dynamical management of dejitter buffers based on speech quality

Owing to packet forwarding throughout different paths and asynchronous behavior of TCP/IP networks, voice packets of a voice flow may arrive at their destination with varying delay. This impairment, known as jitter, is smoothed at the receiver side by applying dejitter buffer algorithms, which store...

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Bibliographic Details
Published inThe IEEE symposium on Computers and Communications pp. 56 - 61
Main Authors do Valle, Raquel F, de Carvalho, Leandro S G, Aguiar, Regeane B, Mota, Edjair S, Freitas, Diógenes
Format Conference Proceeding
LanguageEnglish
Japanese
Published IEEE 01.06.2010
Subjects
dejitter buffer
Delay
Monitoring
speech quality
Voice over IP
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ISBN9781424477548
1424477549
ISSN1530-1346
DOI10.1109/ISCC.2010.5546799

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Summary:Owing to packet forwarding throughout different paths and asynchronous behavior of TCP/IP networks, voice packets of a voice flow may arrive at their destination with varying delay. This impairment, known as jitter, is smoothed at the receiver side by applying dejitter buffer algorithms, which store some packets for an amount of time before playout. This paper presents a manager algorithm of dejitter buffers, which monitors network loss, delay and jitter conditions and change the dejitter buffer algorithm used by the receiver's softphone according to the parameters conjuncture in order to improve speech quality.
ISBN:9781424477548
1424477549
ISSN:1530-1346
DOI:10.1109/ISCC.2010.5546799