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Impact of Text in News Videos for the Viewing Experience on Smartphones
KTH, School of Computer Science and Communication (CSC).
2016 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesisAlternative title
Text i nyhetsklipp och dess inverkan på tittarupplevelsen i en smartphone (Swedish)
Abstract [en]

The viewing experience of news videos differ depending on if the device used is a smartphone or a traditional TV, e.g. because some social situations for smartphones not allow audio to be used while watching. Can the adding of subtitles keep the perceived quality at the same level even in these situations? This study investigates the research question how the viewing experience of news videos on smartphones is affected by subtitles and text for young adults. The results are relevant for anyone aiming to improve the viewing experience of videos on smartphones. The study is based on the theory about the concept Quality of Experience, QoE. The method has an experimental approach: 64 participants watched three news videos and after subjective and objective QoE was measured. The conclusion is that subtitles increased every aspect of subjective and objective QoE in a public context when the videos were watched without audio, while they in a home context where audio was present, did not affect any aspect of QoE, except for a decreased willingness to continue watching.

Abstract [sv]

En tittarupplevelse varierar beroende på om tittandet görs på en smartphone eller på en traditionell TV, bland annat eftersom några tittarsituationer på smartphones socialt sett inte tillåter användning av ljud under tittandet. Kan undertexter göra att den upplevda kvalitén behålls på motsvarande nivå även i dessa situationer? Denna studie undersöker frågeställningen hur tittarupplevelsen av nyhetsklipp på smartphones påverkas av undertexter och texter för unga vuxna. Dess resultat är relevanta för alla som ämnar förbättra tittarupplevelsen på smartphones. Studien är baserad på teori om begreppet ”Quality of Experience”, QoE. Metoden har en experimentell ansats: 64 deltagare tittade på tre nyhetsklipp och därefter mättes den subjektiva och objektiva kvalitén på upplevelsen. Slutsatsen är att undertexter ökade varje aspekt av subjektiv och objektiv upplevd kvalité i en offentlig miljö där klippen sågs utan ljud, medan i en hemmiljö – där klippen sågs med ljud, påverkade inte undertexterna någon aspekt av kvalitén, förutom att viljan att titta klart minskade.

Place, publisher, year, edition, pages
2016. , 10 p.
Keyword [en]
viewing experience, Quality of Experience, viewing context, information assimilation, smartphone
National Category
Media and Communication Technology
URN: urn:nbn:se:kth:diva-192658OAI: diva2:971665
External cooperation
Nyhetsbolaget Sverige AB
Subject / course
Media Technology
Educational program
Master of Science in Engineering - Media Technology
Available from: 2016-10-03 Created: 2016-09-18 Last updated: 2016-10-03Bibliographically approved

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