Voice quality evaluation methods and means for mobile communications

Voice quality evaluation methods and means for mobile communications

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Thesis presents the research of voice frame losses in the GSM. The possibility of evaluation of quality of short duration signals using PESQ algorithm is analysed. New method for preparation of short duration signals for PESQ measurements is proposed. Original method based on quality classes for voi...

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Bibliographic Details
Main Author: Guršnys, Darius
Other Authors: Kajackas, Algimantas
Format: Doctoral Thesis
Language:English
Published: Lithuanian Academic Libraries Network (LABT) 2008
Subjects:
Electronics and Electrical Engineering
GSM
Lost frame traces
Voice quality
Quality evaluation
Prarastų paketų srautai
Balso kokybė
Kokybės įvertinimas
Online Access:http://vddb.library.lt/fedora/get/LT-eLABa-0001:E.02~2008~D_20081119_135710-84655/DS.005.1.01.ETD
Description
Summary:Thesis presents the research of voice frame losses in the GSM. The possibility of evaluation of quality of short duration signals using PESQ algorithm is analysed. New method for preparation of short duration signals for PESQ measurements is proposed. Original method based on quality classes for voice quality evaluation in mobile communications is presented. === Disertacijoje nagrinėjami GSM kanale vykstantys balso paketų praradimai. Nagrinėjama galimybė vertinti trumpų balso segmentų kokybę PESQ algoritmu. Pasiūlomas naujas, mažos trukmės balso signalų kokybės vertinimo PESQ algoritmu metodas. Pristatomas originalus balso kokybės vertinimo metodas mobiliojo ryšio sistemoms, paremtas balso kokybės klasėmis.

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