Yolanda Vazquez-Alvarez

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In this paper, we compare four different auditory displays in a mobile audio-augmented reality environment (a sound garden). The auditory displays varied in the use of non-speech audio, Earcons, as auditory landmarks and 3D audio spatialization, and the goal was to test the user experience of discovery in a purely exploratory environment that included(More)
We describe the results of large scale perception experiments showing improvements in synthesising two distinct kinds of prominence: standard pitch-accent and strong emphatic accents. Previously prominence assignment has been mainly evaluated by computing accuracy on a prominence-labelled test set. By contrast we integrated an automatic pitch-accent(More)
Auditory interfaces offer a solution to the problem of effective eyes-free mobile interactions. However, a problem with audio, as opposed to visual displays, is dealing with multiple simultaneous outputs. Any audio interface needs to consider: 1) simultaneous versus sequential presentation of multiple audio streams, 2) 3D audio techniques to place sounds in(More)
It's an old story. A relationship built on promises turns to bitterness and recriminations. But speech technology has changed: Yes, we know we hurt you, we know things didn't turn out the way we hoped, but can't we put the past behind us? We need you, we need design. And you? You need us. How can you fulfill a dream of pervasive technology without us? So(More)
As mobile devices increase in functionality, users perform more tasks when on the move. Spatial audio interfaces offer a solution for eyes-free interaction. However, such interfaces face a number of challenges when supporting multiple and simultaneous tasks, namely: 1) interference amongst multiple audio streams, and 2) the constraints of cognitive load. We(More)
We consider how visits to un-stewarded historical and archaeological sites - those that are unstaffed and have few visible archaeological remains - can be augmented with multimodal interaction to create more engaging experiences. We developed and evaluated a mobile application that allowed multimodal exploration of a rural Roman fort. Sixteen primary school(More)
Thermal feedback is a new area of research in HCI. To date, studies investigating thermal feedback for interaction have focused on virtual reality, abstract uses of thermal output or on use in highly controlled lab settings. This paper is one of the first to look at how environmental factors, in our case clothing, might affect user perception of thermal(More)
Sound gardens rely on location tracking technology to situate audio landmarks in public spaces, typically urban parks. These landmarks are surrounded by a proximity zone, and content relating to them is displayed to users within this region. In densely populated sound gardens, overlap between zones is inevitable and will result in simultaneous playback of(More)
Audio is a key feedback mechanism in eyes-free and mobile computer interaction. Spatial audio, which allows us to localize a sound source in a 3D space, can offer a means of altering focus between audio streams as well as increasing the richness and differentiation of audio cues. However, the implementation of spatial audio on mobile phones is a recent(More)