Abstract:In this paper, the authors describe a novel design alternative to the traditional PIN-based user authentication process, through the selection of a sequence of abstract sounds. The authors conducted two studies as part of the research. The first study examines a user's ability to discriminate between sounds based on the manipulation of various sound characteristics. Results highlighted the benefits of timbre and spatial positioning as differentiators. They also found manipulations of pitch, rhythm, and spatial… Show more
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