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Did you notice that? A comparison between auditory and vibrotactile feedback in an AR environment
KTH, School of Electrical Engineering and Computer Science (EECS).
2019 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

There are different ways to interact with different hardware, therefore it is important to have an understanding about what factors that affect the experience when designing interactions and interfaces. This study focuses on exploring how auditory and vibrotactile feedback are perceived by the users when they interact in a virtual AR environment. An application was developed to the AR glasses Magic Leap with different interactions, both passive and active.

An experimental study was conducted with 28 participants that got to interact in this virtual environment. The study included two parts. First the participants interacted in the virtual environment where they did a think aloud. Thereafter they were interviewed. There were a total of three test cases. One with only auditory feedback, one with vibrotactile feedback, and a third that had both auditory and vibrotactile feedback. Seven of the 28 participants acted as a control group that did not have any feedback to their interactions.

The study shows that using only vibrotactile feedback creates different impressions depending on earlier experiences with the same AR environment. Using only auditory feedback created an atmosphere that were close to reality. Having both feedbacks active at the same time reduced the noticed feedback and some interactions were here not even noticed at all. Passive interactions were more noticed than active interactions in all cases.

Abstract [sv]

Det finns flera olika sätt att interagera med olika hårdvaror och därför är det viktigt att ha en förståelse kring vilka faktorer som påverkar upplevelsen när man designar för diverse gränssnitt och interaktioner. Den här studien fokuserar på att utforska hur auditiv och vibrationsåterkoppling uppfattas av användaren när de interagerar i en virtuell AR-miljö. En applikation var utvecklad till AR-glasögonen Magic Leap One med olika aktiva och passiva interaktioner.En experimentell studie genomfördes med 28 deltagare som fick interagera i en virtuell miljö. Studien bestod av av två delar. Först fick deltagarna interagera i en virtuell miljö där de gjorde en think aloud. Efter detta blev de intervjuade. Det var totalt tre testfall, ett hade endast auditiv återkoppling, ett hade vibrationsåterkoppling och det sista hade både auditiv och vibrationsåterkoppling. Sju av de 28 deltagarna agerade kontrollgrupp och de hade ingen återkoppling på deras interaktioner.Studien visade att bara använda vibrationsåterkoppling skapade olika intryck beroende på de tidigare erfarenheterna i samma AR-miljö. Att endast använda auditiv återkoppling skapade en atmosfär som vara nära verkligheten. Att ha båda återkopplingarna aktiva samtidigt reducerade den totala märkta återkopplingen och några interaktioner hade inte någon person som noterade någon av dem. Passiva interaktioner var mer uppmärksammade än aktiva interaktioner i alla testfallen.

Place, publisher, year, edition, pages
2019. , p. 13
Series
TRITA-EECS-EX ; 2019:451
Keywords [en]
Human-Computer Interaction; Vibrotactile feedback; Auditory (non-speech) feedback; Augmented reality; Mixed reality; Magic Leap
National Category
Computer and Information Sciences
Identifiers
URN: urn:nbn:se:kth:diva-254996OAI: oai:DiVA.org:kth-254996DiVA, id: diva2:1337217
Supervisors
Examiners
Available from: 2019-07-12 Created: 2019-07-12 Last updated: 2019-07-12Bibliographically approved

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CiteExportLink to record
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