920 research outputs found
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Collaborative music interaction on tabletops: an HCI approach
With the advent of tabletop interaction, collaborative activities are better supported than they are on single-user PCs because there exists a physical shareable space, and interaction with digital data is more embodied and social. In sound and music computing, collaborative music making has traditionally been done using interconnected networks, but using separated computers. Musical tabletops introduce opportunities of playing in collaboration through sharing physically the same musical interface. However, few tabletop musical interfaces exploit this collaborative potential (e.g. the Reactable). We are interested in looking into how collaboration can be fully supported by means of musical tabletops for music performance in contrast with more traditional settings. We are also looking at whether collective musical engagement can be enhanced by providing more suitable interfaces to collaboration. In HCI and software development, we find an iterative process approach of design and evaluation—where evaluation allows us to identify key issues that can be addressed in the next design iteration of the system. Using a similar iterative approach, we plan to design and evaluate some tabletop musical interfaces. The aim is to understand what design choices can enhance and enrich collaboration and collective musical engagement on these systems. In this paper, we explain the evaluation methodologies we have undertaken in three preliminary pilot studies, and the lessons we have learned. Initial findings indicate that evaluating tabletop musical interfaces is a complex endeavour which requires an approach as close as possible to a real context, with an interdisciplinary approach provided by interaction analysis techniques
Issues and techniques for collaborative music making on multi-touch surfaces
A range of systems exist for collaborative music making on multi-touch surfaces. Some of them have been highly successful, but currently there is no systematic way of designing them, to maximise collaboration for a particular user group. We are particularly interested in systems that will engage novices and experts. We designed a simple application in an initial attempt to clearly analyse some of the issues. Our application allows groups of users to express themselves in collaborative music making using pre-composed materials. User studies were video recorded and analysed using two techniques derived from Grounded Theory and Content Analysis. A questionnaire was also conducted and evaluated. Findings suggest that the application affords engaging interaction. Enhancements for collaborative music making on multi-touch surfaces are discussed. Finally, future work on the prototype is proposed to maximise engagement
Tangible user interfaces : past, present and future directions
In the last two decades, Tangible User Interfaces (TUIs) have emerged as a new interface type that interlinks the digital and physical worlds. Drawing upon users' knowledge and skills of interaction with the real non-digital world, TUIs show a potential to enhance the way in which people interact with and leverage digital information. However, TUI research is still in its infancy and extensive research is required in or- der to fully understand the implications of tangible user interfaces, to develop technologies that further bridge the digital and the physical, and to guide TUI design with empirical knowledge. This paper examines the existing body of work on Tangible User In- terfaces. We start by sketching the history of tangible user interfaces, examining the intellectual origins of this field. We then present TUIs in a broader context, survey application domains, and review frame- works and taxonomies. We also discuss conceptual foundations of TUIs including perspectives from cognitive sciences, phycology, and philoso- phy. Methods and technologies for designing, building, and evaluating TUIs are also addressed. Finally, we discuss the strengths and limita- tions of TUIs and chart directions for future research
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Tabletop Tangible Interfaces for Music Performance: Design and Evaluation
This thesis investigates a new generation of collaborative systems: tabletop tangible interfaces (TTIs) for music performance or musical tabletops. Musical tabletops are designed for professional musical performance, as well as for casual interaction in public settings. These systems support co-located collaboration, offered by a shared interface. However, we still know little about their challenges and opportunities for collaborative musical practice: in particular, how to best support beginners or experts or both.
This thesis explores the nature of collaboration on TTIs for music performance between beginners, experts, or both. Empirical work was done in two stages: 1) an exploratory stage; and 2) an experimental stage. In the exploratory stage we studied the Reactable, a commercial musical tabletop designed for beginners and experts. In particular, we explored its use in two environments: a multi-session study with expert musicians in a casual lab setting; and a field study with casual visitors in a science centre. In the experimental stage we conducted a controlled experiment for mixed groups using a bespoke musical tabletop interface, SoundXY4. The design of this study was informed by the previous stage about a need to support better real-time awareness of the group activity (workspace awareness) in early interactions. For the three studies, groups musical improvisation was video-captured unobtrusively with the aim of understanding natural uses during group musical practice. Rich video data was carefully analysed focusing on the nature of social interaction and how workspace awareness was manifested.
The findings suggest that musical tabletops can support peer learning during multiple sessions; fluid between-group social interaction in public settings; and a democratic and ecological approach to music performance. The findings also point to how workspace awareness can be enhanced in early interactions with TTIs using auditory feedback with ambisonics spatialisation.
The thesis concludes with theoretical, methodological, and practical implications for future research in New Interfaces for Musical Expression (NIME), tabletop studies, and Human-Computer Interaction (HCI)
Multi-touch interaction principles for collaborative real-time music activities: towards a pattern language
In this paper we give an analysis of the literature on a set of problems that can arise when undertaking the interaction design of multi-touch applications for collaborative real-time music activities, which are designed for multitouch technologies (e.g. smartphones, tablets, interactive tabletops, among others). Each problem is described, and a candidate design pattern (CDP) is suggested in the form of a short sentence and a diagram—an approach inspired by Christopher Alexander’s A Pattern Language. These solutions relate to the fundamental collaborative principles of democratic relationships, identities and collective interplay. We believe that this approach might disseminate forms of best design practice for collaborative music applications, in order to produce real-time musical systems which are collaborative and expressive
An interactive music system based on the technology of the reacTable
The purpose of this dissertation is to investigate and document a research project undertaken in the designing, constructing and performing of an interactive music system. The project involved building a multi-user electro-acoustic music instrument with a tangible user interface, based on the technology of the reacTable. The main concept of the instrument was to integrate the ideas of 1) interpreting gestural movement into music, 2) multi-touch/multi-user technology, and 3) the exploration of timbre in computer music. The dissertation discusses the definition, basics and essentials of interactive music systems and examines the past history and key features of the three main concepts, previously mentioned. The original instrument is observed in detail, including the design and construction of the table-shaped physical build, along with an in-depth look into the computer software (ReacTIVision, Max MSP and Reason) employed. The fundamentals and workings of the instrument- sensing/processing/response, control and feedback, and mapping- are described at length, examining how tangible objects are used to generate and control parameters of music, while its instrumental limitations are also mentioned. How the three main concepts relate to, and are expressed within, the instrument is also discussed. An original piece of music, with an accompanying video, entitled Piece for homemade reacTable, composed and performed on the instrument has been created in support of this dissertation. It acts as a basic demonstration of how the interactive music system works, showcasing all the main concepts and how they are put in practice to create and perform new electronic music
Accessibility and tangible interaction in distributed workspaces based on multi-touch surfaces
[EN] Traditional interaction mechanisms in distributed digital spaces often fail to consider the intrinsic properties of action, perception, and communication among workgroups, which may affect access to the common resources used to mutually organize information. By developing suitable spatial geometries and natural interaction mechanisms, distributed spaces can become blended where the physical and virtual boundaries of local and remote spaces merge together to provide the illusion of a single unified space. In this paper, we discuss the importance of blended interaction in distributed spaces and the particular challenges faced when designing accessible technology. We illustrate this discussion through a new tangible interaction mechanism for collaborative spaces based on tabletop system technology implemented with optical frames. Our tangible elements facilitate the exchange of digital information in distributed collaborative settings by providing a physical manifestation of common digital operations. The tangibles are designed as passive elements that do not require the use of any additional hardware or external power while maintaining a high degree of accuracy.This work was supported by the Spanish Ministry of Economy and Competitiveness and the European Regional Development Fund, through the ANNOTA Project (Ref. TIN2013-46036-C3-1-R).Salvador-Herranz, G.; Camba, J.; Contero, M.; Naya Sanchis, F. (2018). Accessibility and tangible interaction in distributed workspaces based on multi-touch surfaces. Universal Access in the Information Society. 17(2):247-256. https://doi.org/10.1007/s10209-017-0563-7S247256172Arkin, E.M., Chew, L.P., Huttenlocher, D.P., Kedem, K., Mitchell, J.S.B.: An efficiently computable metric for comparing polygonal shapes. IEEE Trans. Acoust. 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SoundXY4: supporting tabletop collaboration and awareness with ambisonics spatialisation
Co-located tabletop tangible user interfaces (TUIs) for music performance are known for promoting multi-player collaboration with a shared interface, yet it is still unclear how to best support the awareness of the workspace in terms of understanding individual actions and the other group members actions, in parallel. In this paper, we investigate the effects of providing auditory feedback using ambisonics spatialisation, aimed at informing users about the location of the tangibles on the tabletop surface, with groups of mixed musical backgrounds. Participants were asked to improvise music on "SoundXY4: The Art of Noise", a tabletop system that includes sound samples inspired by Russolo's taxonomy of noises. We compared spatialisation vs. no-spatialisation conditions, and findings suggest that, when using spatialisation, there was a clearer workspace awareness, and a greater engagement in the musical activity as an immersive experience
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CreaTable Content and Tangible Interaction in Aphasia
Multimedia digital content (combining pictures, text and music) is ubiquitous. The process of creating such content using existing tools typically requires complex, language-laden interactions which pose a challenge for users with aphasia (a language impairment following brain injury). Tangible interactions offer a potential means to address this challenge, however, there has been little work exploring their potential for this purpose. In this paper, we present CreaTable – a platform that enables us to explore tangible interaction as a means of supporting digital content creation for people with aphasia. We report details of the co-design of CreaTable and findings from a digital creativity workshop. Workshop findings indicated that CreaTable enabled people with aphasia to create something they would not otherwise have been able to. We report how users’ aphasia profiles affected their experience, describe tensions in collaborative content creation and provide insight into more accessible content creation using tangibles
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