The benefits and user experience of hearing aids controlled by eye gaze of the user
Translated title
Fordelene og brugeroplevelsen af høreapparater styret af brugerens øjeretning
Author
Nellemann, Lucca Julie
Term
4. term
Education
Publication year
2020
Submitted on
2020-01-07
Pages
97
Abstract
Mange høreapparater har svært ved korrekt at reducere baggrundsstøj i støjende omgivelser, hvilket gør det vanskeligt at følge en samtale. Dette speciale undersøger, om et høreapparat, der styres af hvor brugeren kigger (eye gaze steering), kan gavne brugeren. To versioner blev testet på konceptniveau: hard og soft eye gaze steering. Tretten høreapparatbrugere deltog. De fulgte en samtale og besvarede spørgsmål under fire betingelser: en træningsrunde (familiarisering) og derefter ingen, hard og soft blikstyring. Efter hver betingelse udfyldte deltagerne NASA Task Load Index (TLX), et standardskema om oplevet arbejdsbelastning, og efter forsøget blev der gennemført et afsluttende interview. Andelen af korrekte svar var højest i træningsrunden, derefter ved hard blikstyring, derefter soft blikstyring, og lavest uden styring. Der var en signifikant forskel mellem alle betingelser, undtagen mellem hard og soft blikstyring. I arbejdsbelastning sås kun en forskel mellem træningsrunden og de tre andre betingelser, hvor træningsrunden scorede lavest. Deltagerne oplevede, at blikstyring hjalp ved at reducere lyde, de ikke ønskede at lytte til, og de foretrak den hard blikstyring.
Many hearing aids struggle to reduce background noise in busy places, making conversations hard to follow. This thesis examines whether a hearing aid that is steered by where the user looks (eye gaze steering) can help. Two versions were tested at a concept level: hard and soft eye gaze steering. Thirteen hearing aid users took part. They followed a conversation and answered questions under four conditions: a familiarization (practice) round and then no, hard, and soft steering. After each condition, participants completed the NASA Task Load Index (TLX), a standard questionnaire about perceived workload, and an exit interview was conducted after the experiment. Accuracy (percent correct answers) was highest in the familiarization round, followed by hard gaze steering, soft gaze steering, and lowest with no steering. Differences were statistically significant between all conditions except between hard and soft gaze steering. For workload, the only difference was between the familiarization round and the three other conditions, with familiarization scoring lowest. Participants felt that gaze steering helped by reducing sounds they did not want to listen to, and they preferred the hard gaze steering.
[This abstract was generated with the help of AI]
Keywords
Documents