Abstract/Details

An algorithm to evaluate the echo signal and the voice quality in VoIP networks


2006 2006

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Abstract (summary)

Voice over the Internet Protocol (VoIP) has been increasingly popular, but reliability and voice quality remain important factors that limit the widespread adoption of VoIP systems. Providing good voice quality is of major importance for the transition from the PSTN to VoIP networks. There are several non-real-time algorithms that estimate the voice quality such as the PESQ and the E-model. In this thesis we propose a real-time fuzzy algorithm to estimate the echo quality component of the voice quality in VoIP networks. Differently from the existing algorithms, the proposed algorithm does not need a reference signal and has low computational complexity. For these reasons, the proposed algorithm can be embedded in every VoIP system of a network to monitor live calls, giving an estimate of the instantaneous voice quality to the network provider.

Indexing (details)


Subject
Electrical engineering
Classification
0544: Electrical engineering
Identifier / keyword
Applied sciences
Title
An algorithm to evaluate the echo signal and the voice quality in VoIP networks
Author
Kauffman, Andre Neumann
Number of pages
72
Publication year
2006
Degree date
2006
School code
0117
Source
MAI 45/01M, Masters Abstracts International
Place of publication
Ann Arbor
Country of publication
United States
ISBN
9780542904073
Advisor
Tretter, Steven A.
University/institution
University of Maryland, College Park
University location
United States -- Maryland
Degree
M.S.
Source type
Dissertations & Theses
Language
English
Document type
Dissertation/Thesis
Dissertation/thesis number
1438463
ProQuest document ID
305302082
Copyright
Database copyright ProQuest LLC; ProQuest does not claim copyright in the individual underlying works.
Document URL
http://search.proquest.com/docview/305302082
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