• Publications
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Investigating touchscreen accessibility for people with visual impairments
Touchscreen computing devices such as the iPhone are becoming more common. However this technology is largely inaccessible to people with visual impairments. We present the results of a requirementsExpand
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Understanding concurrent earcons: Applying auditory scene analysis principles to concurrent earcon recognition
Two investigations into the identification of concurrently presented, structured sounds, called earcons were carried out. One of the experiments investigated how varying the number of concurrentlyExpand
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Audio Bubbles: Employing Non-speech Audio to Support Tourist Wayfinding
We introduce the concept of Audio Bubbles - virtual spheres filled with audio that are geocentered on physical landmarks, providing navigational homing information for a user to more easily locateExpand
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Olfoto: designing a smell-based interaction
We present a study into the use of smell for searching digi-tal photo collections. Many people now have large photo libraries on their computers and effective search tools are needed. Smell has aExpand
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Understanding and improving the identification of concurrently presented earcons
The use of sound to communicate information as part of a user interface has been an active research area for several years. Research has shown that sound can be concurrently presented to users toExpand
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Clutching at straws: using tangible interaction to provide non-visual access to graphs
We present a tangible user interface (TUI) called Tangible Graph Builder, that has been designed to allow visually impaired users to access graph and chart-based data. We describe the currentExpand
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In this paper we describe an experiment investigating the ability of participants to identify multiple, concurrently playing structured sounds, called earcons. Several different sets of earcons wereExpand
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Hajukone: Developing an Open Source Olfactory Device
In comparison to our other senses, there has been relatively little work on how our sense of smell can be effectively utilised in a Human-Computer Interface. We argue that the lack of easy access toExpand
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PULSE: the design and evaluation of an auditory display to provide a social vibe
We present PULSE, a mobile application designed to allow users to gain a 'vibe', an intrinsic understanding of the people, places and activities around their current location, derived from messagesExpand
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This paper presents a set of empirically derived guidelines for the presentation of concurrent earcons (short structured audio messages which can be used to effectively communicate information toExpand
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