To “Sketch-a-Scratch”

A surface can be harsh and raspy, or smooth and silky, and everything in between. We are used to sense these features with our fingertips as well as with our eyes and ears: the exploration of a surface is a multisensory experience. Tools, too, are often employed in the interaction with surfaces, since they augment our manipulation capabilities. “Sketch-a-Scratch” is a tool for the multisensory exploration and sketching of surface textures. The user’s actions drive a physical sound model of real materials’ response to interactions such as scraping, rubbing or rolling. Moreover, different input signals can be converted into 2D visual surface profiles, thus enabling to experience them visually, aurally and haptically

The Sound Manifesto

Computing practice today depends on visual output to drive almost all user interaction. Other senses, such as audition, may be totally neglected, or used tangentially, or used in highly restricted specialized ways. We have excellent audio rendering through D-A conversion, but we lack rich general facilities for modeling and manipulating sound comparable in quality and flexibility to graphics. We need co-ordinated research in several disciplines to improve the use of sound as an interactive information channel. Incremental and separate improvements in synthesis, analysis, speech processing, audiology, acoustics, music, etc. will not alone produce the radical progress that we seek in sonic practice. We also need to create a new central topic of study in digital audio research. The new topic will assimilate the contributions of different disciplines on a common foundation. The key central concept that we lack is sound as a general-purpose information channel. We must investigate the structure of this information channel, which is driven by the co-operative development of auditory perception and physical sound production. Particular audible encodings, such as speech and music, illuminate sonic information by example, but they are no more sufficient for a characterization than typography is sufficient for a characterization of visual information.Comment: To appear in the conference on Critical Technologies for the Future of Computing, part of SPIE's International Symposium on Optical Science and Technology, 30 July to 4 August 2000, San Diego, C

Technical aspects of a demonstration tape for three-dimensional sound displays

This document was developed to accompany an audio cassette that demonstrates work in three-dimensional auditory displays, developed at the Ames Research Center Aerospace Human Factors Division. It provides a text version of the audio material, and covers the theoretical and technical issues of spatial auditory displays in greater depth than on the cassette. The technical procedures used in the production of the audio demonstration are documented, including the methods for simulating rotorcraft radio communication, synthesizing auditory icons, and using the Convolvotron, a real-time spatialization device

The Relationship Between Preferred Modal Learning Style and Patterns of Use and Completion of an Online Project Management Training Programme

This paper reports the results of a pilot study, conducted to observe and evaluate the patterns of use and completion of a set of project management units and to identify any relationships between these factors and learning style. The aim of the study was to gather data on which to base a subsequent software development project, based around personalising the learning materials. The participants were adult professionals employed in public sector organisations in the UK and the study was based within a real business e-learning environment. Data regarding preferred learning style was collected via a questionnaire and usage, progress and completion rates were gathered from computer logging data, with user permission. To assess preferred learning style, the VARK inventory (Fleming and Mills, 1992) was used; this categorises learners according to modal preference for learning: Visual, Auditory, Read/write and Kinaesthetic. The results showed that learners with a preferred Visual mode showed the best record for completions and were characterised by frequent usage, but for relatively shorter study durations. In contrast, learners preferring the Auditory modality had the lowest proportion of completions, and also this group logged on less frequently but for longer study periods. Learners with a preferred Kinaesthetic mode were characterised by the highest proportion of ‘In-Process’ learners (who were regularly using the system but not yet completed). The paper concludes with a proposal to build a personalisable learning environment incorporating specific modal features. A further study will then observe more closely the interaction between preferred modal learning style, mode of presentation and usage and performance. Keywords: VARK, modal learning style, business e-learning, project managemen

Computer aided systems human engineering: A hypermedia tool

The Computer Aided Systems Human Engineering (CASHE) system, Version 1.0, is a multimedia ergonomics database on CD-ROM for the Apple Macintosh II computer, being developed for use by human system designers, educators, and researchers. It will initially be available on CD-ROM and will allow users to access ergonomics data and models stored electronically as text, graphics, and audio. The CASHE CD-ROM, Version 1.0 will contain the Boff and Lincoln (1988) Engineering Data Compendium, MIL-STD-1472D and a unique, interactive simulation capability, the Perception and Performance Prototyper. Its features also include a specialized data retrieval, scaling, and analysis capability and the state of the art in information retrieval, browsing, and navigation

Moving tales, exploring narrative strategies for scalable locative audio drama.

This paper reports on a recent collaboration between the Lansdown Centre for Electronic Arts at Middlesex University and the BBC Radio Drama Department, which was designed to investigate the narrative possibilities of locative media in a drama context. The locative drama Scratch is the first outcome of an ongoing research project, Locating Drama, whose aim is to investigate and develop narrative strategies that take full advantage of the current generation of GPS enabled portable computing devices for audio drama. In particular, we are exploring content and modes of interaction, which, while based on location awareness are not in any way site-specific allowing users to experience the drama in a location of their choice. We will refer to this approach as translocational as it allows the translation of locative media experiences to a wide variety of spaces. The translocational approach is of particular interest to broadcasters as it is more scalable than a site-specific paradigm, opening the possibility of downloadable location-aware podcasts featuring professionally authored content for a wide audience