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Title:Kodek opus in vpliv omrežnih degradacij na kakovost zvoka : diplomsko delo
Authors:ID Rumež, Aleš (Author)
ID Žgank, Andrej (Mentor) More about this mentor... New window
ID Zimšek, Danilo (Comentor)
Files:.pdf UN_Rumez_Ales_2019.pdf (711,67 KB)
MD5: A775D169403E48CB8E72C97CFEFF3122
PID: 20.500.12556/dkum/d7a6dba5-1600-4e63-9e39-f287abe5a15f
 
Language:Slovenian
Work type:Bachelor thesis/paper
Typology:2.11 - Undergraduate Thesis
Organization:FERI - Faculty of Electrical Engineering and Computer Science
Abstract:Diplomsko delo obravnava zvočni kodek Opus in vpliv omrežnih degradacij na kakovost zvoka. Namen dela je analizirati kakovost zvočnih posnetkov, kodiranih s kodekom Opus in poškodovanih s simulirano degradacijo omrežja na osnovi izgube paketov. V teoretičnem delu naloge so opisani zvočni kodeki in predstavljene objektivne metode za vrednotenje kakovosti zvoka. V praktičnem delu je razvit in implementiran postopek za primerjavo kakovosti zvočnih posnetkov, ki temelji na velikem številu ponovitev eksperimentov. Izvedeno je vrednotenje kakovosti realnih vhodnih posnetkov pri različnem deležu izgubljenih paketov v omrežju, pri čemer je uporabljena metoda za objektivno zaznavno ocenjevanje kakovosti govora ITU P.862 PESQ.
Keywords:govor, kodek Opus, omrežna degradacija, vrednotenje kakovosti, pretakanje
Place of publishing:Maribor
Place of performance:Maribor
Publisher:[A. Rumež]
Year of publishing:2019
Number of pages:IV, 35 f.
PID:20.500.12556/DKUM-75072 New window
UDC:004.934:621.39(043.2)
COBISS.SI-ID:22871318 New window
NUK URN:URN:SI:UM:DK:TEZJ5J21
Publication date in DKUM:08.11.2019
Views:1418
Downloads:75
Metadata:XML DC-XML DC-RDF
Categories:KTFMB - FERI
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Licences

License:CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.
Licensing start date:19.09.2019

Secondary language

Language:English
Title:Opus codec and impact of network degradation on sound quality
Abstract:This bachelor`s thesis addresses Opus audio codec and the effect of network degradation on the speech quality. The objective of this work is to analyze the quality of audio recordings, encoded with Opus audio codec and degradated, at different levels of network degradation. In the theoretical part of the thesis, the audio codecs description is given along with the explanation of methods for speech quality assessment. In the experimental part, a procedure for comparing speech quality based on the result of mean opinion score is developed and implemented. Finally, the analysis of audio quality for multiple input recordings is performed at different packet loss ratios in the network, using the ITU P.862 PESQ objective perceptual speech quality assessment method.
Keywords:speech, codec Opus, network degradation, quality assessment, streaming


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