Johan Fagerlönn

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Auditory signals have proven useful to guide and inform drivers in dangerous situations. Sounds can become annoying, however, thereby negatively affecting consumer acceptance of an interface or system. Auditory warnings are typically salient sounds such as sudden beeps or repetitive tones. But adding sound to the environment is not necessarily the only way(More)
Previous auditory display research has shown how fundamental aspects of an auditory signal may influence perception and impact the emotional state of the listener. However, a challenge for designers is how to find signals that correspond to user situations and make sense within a user context. In this article we present a web based application called(More)
Sound design can be described as an inherently complex task, demanding the designer to understand, master and balance technology, human perception, aesthetics and semiotics. Given this complexity, there are surprisingly few tools available that meet the needs of the general designer or developer incorporating sound as design material. To attend to this(More)
Warning signals are often very simple and monotone sounds. This paper focuses on taking a more musical approach to the design of warnings and alarms than has been the case in the past. We present an experimental pilot study in which we explore the possibilities of using short musical pieces as warning signals in a vehicle cab. In the study, 18 experienced(More)
A major problem when tackling any audio design problem aimed at conveying important and informative content, is the imposing of the designer's own emotion, taste and value systems on the finished design choices, rather than reflecting those of the end user. In the past the problem has been routed in the tendency to use passive test subjects in rigid(More)
This paper presents a simulator study that evaluates four auditory displays to assist commercial drivers in lane changing situations. More specifically, the displays warned the drivers about vehicles in the adjacent lane. Three displays utilized different variants of graded auditory warnings (early and late signals) while one display contained a(More)
This paper describes the first version of Oregano, a system that allows people to interact with a large concert organ using their voices and a touch display. The main objective of the design was to increase the organ's accessibility for the general public and enhance their experience when visiting the Studio Acusticum concert hall in Piteå, Sweden. A(More)