User evaluations of a virtual haptic-audio line drawing prototype
Rassmus-Gröhn, Kirsten; Magnusson, Charlotte; Eftring, Håkan (2006). User evaluations of a virtual haptic-audio line drawing prototype Haptic and Audio Interaction Design. Proceedings (Lecture Notes in Computer Science), 4129,, 81 - 91. First International Workshop, HAID 2006. Glasgow, United Kingdom: Springer
Conference Proceeding/Paper
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Published
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English
Authors:
Rassmus-Gröhn, Kirsten
;
Magnusson, Charlotte
;
Eftring, Håkan
Department:
Certec - Rehabilitation Engineering and Design
Audio-Haptic Interactive Design-lup-obsolete
Research Group:
Audio-Haptic Interactive Design-lup-obsolete
Abstract:
A virtual haptic-audio drawing program prototype designed for visually impaired children, has been gradually developed in a design-evaluation loop involving users in four stages. Three qualitative evaluations focused on recognizing drawn shapes and creating drawings have been conducted together with a reference group of 5 visually impaired children. Additionally, one formal pilot test involving I I adult sighted users investigated the use of a combination of haptic and sound field feedback. In the latter test the relief type (positive and negative) was also varied. Results indicate a subjective preference as well as a shorter examination time for negative relief over positive relief for the interpretation of simple shapes such as 2D geometrical figures. The presence of the position sound field with a pitch and stereo panning analogy was not shown to affect task completion times.
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