Identifying and Communicating 2D Shapes using Auditory Feedback
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This research project shows a technique for allowing a user to "see" a 2D shape without any visual feedback. The user gestures with any universal pointing tool, as a mouse, a pen tablet, or the touch screen of a mobile device, and receives auditory feedback. This allows the user to experiment and eventually learn enough of the shape to effectively trace it out in 2D. The proposed system is based on the idea of relating spatial representations to sound, which allows the user to have a sound perception of a 2D shape. The shapes are predefined and the user has no access to any visual information. While exploring the space using the pointer device, sound is generated, which pitch and intensity varies according to some given strategies. 2D shapes can be identified and easily followed with the pointer tool, using the sound as only reference.