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• Audio-Based Feedback Techniques for Teaching Touchscreen Gestures

  Uran Oh, Stacy Branham, Leah Findlater, Shaun K. Kane · 2015 · ACM Transactions on Accessible Computing (TACCESS)

  This paper proposes and evaluates two complementary audio-based techniques for teaching touchscreen gestures to blind and low-vision users: gesture sonification (mapping finger position to pitch and stereo panning to create an audio representation of the gesture) and corrective…

  visual impairment · touchscreen · gesture learning · sonification · audio feedback

• Eyes-free Exploration of Shapes with Invisible Puzzle

  Andrea Gerino, Lorenzo Picinali, Cristian Bernareggi, Sergio Mascetti · 2015 · ASSETS '15: Proceedings of the 17th International ACM SIGACCESS Conference on Computers & Accessibility

  This paper presents Invisible Puzzle Game, an iPhone application that uses sonification techniques to enable people who are blind or visually impaired to explore shapes on touchscreen devices. Image exploration is fundamental for developing visuospatial skills and STEM…

  sonification · blindness · visual impairment · touchscreen · image exploration

• Towards Large Scale Evaluation of Novel Sonification Techniques for Non Visual Shape Exploration

  Andrea Gerino, Lorenzo Picinali, Cristian Bernareggi, Nicolò Alabastro, Sergio Mascetti · 2015 · ASSETS '15: Proceedings of the 17th International ACM SIGACCESS Conference on Computers & Accessibility

  This paper presents six sonification techniques for exploring shapes on touchscreen devices and evaluates them through Invisible Puzzle, an iPhone application enabling large-scale unsupervised testing. The research addresses a critical need: people who are blind need access to…

  sonification · blindness · visual impairment · touchscreen · image exploration

• Typing Performance of Blind Users: An Analysis of Touch Behaviors, Learning Effect, and In-Situ Usage

  Hugo Nicolau, Kyle Montague, Tiago Guerreiro, André Rodrigues, Vicki L. Hanson · 2015 · ASSETS '15: Proceedings of the 17th International ACM SIGACCESS Conference on Computers & Accessibility

  This longitudinal study provides the most detailed analysis to date of how novice blind users learn to type on touchscreen keyboards using the Explore by Touch paradigm (where users slide fingers across the screen to hear key names, then lift to select). Five legally blind…

  visual impairment · touchscreen · text entry · mobile accessibility · screen reader

• Getting Smartphones to Talkback: Understanding the Smartphone Adoption Process of Blind Users

  André Rodrigues, Kyle Montague, Hugo Nicolau, Tiago Guerreiro · 2015 · ASSETS '15: Proceedings of the 17th International ACM SIGACCESS Conference on Computers & Accessibility

  This paper presents an eight-week longitudinal study investigating how novice blind users adopt touchscreen smartphones, transitioning from traditional feature phones. The researchers recruited five legally blind participants (ages 23-55) who had never used a touchscreen…

  blindness · screen readers · mobile accessibility · TalkBack · smartphone adoption

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