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Bluetooth audio codecs in a real-time interactive context
University of Skövde, School of Informatics.
University of Skövde, School of Informatics.
University of Skövde, School of Informatics.
2023 (English)Independent thesis Basic level (degree of Bachelor), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The emergence of Bluetooth Low Energy in combination with optimized coders has made it possible to transfer digital audio at very low bitrates, paving the way for small devices with longlasting batteries. The aim of this study is to compare the audio codecs LC3 and aptX, as well as peoples’ attitude towards audio quality in different contexts. Two open source implementations of the codecs are evaluated in terms of time for execution. Furthermore, the perceived audio quality of low bitrates are subjectively compared in a listening test in combination with a questionnaire regarding peoples’ attitude towards audio quality. The results show that LC3 is capable of delivering satisfying audio quality at very low bitrates, whilst also outperforming aptX. It will be interesting to see how LC3 will affect transmission latency, battery life and overall QoS once it is established in everyday products

Place, publisher, year, edition, pages
2023. , p. 41
Keywords [en]
Bluetooth Low Energy, BLE, audio codec, LC3, aptX, real-time, interactive context, latency, perceived audio quality
National Category
Information Systems
Identifiers
URN: urn:nbn:se:his:diva-22711OAI: oai:DiVA.org:his-22711DiVA, id: diva2:1768535
Subject / course
Informationsteknologi
Educational program
Computer Science - Specialization in Systems Development
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Examiners
Available from: 2023-06-15 Created: 2023-06-15 Last updated: 2023-06-15Bibliographically approved

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • apa-cv
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf