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  • 1.
    Hellström, Björn
    University College of Arts, Crafts and Design, Institutionen för Konst (K).
    Trans-Acousmatic Design: a Tool for Permanent Sound Installations in City-Parks2010In: Noise in the built Envionment: Proceedings of the Institute of Acoustics Volume 32 Pt.3, St Albans, United Kingdom: Institute of Acoustics , 2010, p. 57-64Conference paper (Refereed)
  • 2.
    Hellström, Björn
    et al.
    University College of Arts, Crafts and Design, Institutionen för Konst (K).
    Johansson, Bengt
    Zalyaletdinov, Philip
    Redesign of One Atmosphere: What do you want to hear?2008In: Faire une ambiance / Creating an atomsphere: Communications / Proceedings, 2008Conference paper (Refereed)
    Abstract [en]

    In an ongoing research project the design of acoustical atmospheres in large indoor spaces are investigated. The research question is: “How to redesign one sonic atmosphere into a variation of sub-atmospheres in large indoor spaces?” This question is especially valid for spaces such as semi-public commercial spaces (e.g. shopping malls), libraries, airports and communication spaces. The sonic atmosphere in these collective spaces is often loud, blurred and confusing, with little correspondence between visual and aural perception, and with weak articulations of spatial dimension, distance, borders and orientation. Together the different sound sources within these spaces generate a sonic hubbub. Even though such spaces comprise of several types of activities, the sonic atmosphere is the same all over the place.

    Hence, this research project focuses on design of sonic variations of the atmosphere; i.e., site specific sounds that deal with qualities such as communication, comfort, orientation, identity and privacy. The objective is to develop and test an interdisciplinary design methodology, which comprises a number of co-related methods; e.g. acoustic measurements, architectural site analysis, as well as virtual modeling and representation (visual and acoustic) of the space. The main part of the project is the virtual modeling and representation. It connects software that handles architectural 3D-modelling (SketchUp) with the Catt-Acoustic software, used for prediction and auralization.

    The research project also includes a case-study, which comprises proposals for redesign of a congress centre (Scandic Infra City), situated north of Stockholm. The proposals –consisting of architectural elements, sound installations (additions of sounds) as well as acoustical measures – will be demonstrated in a virtual model. The presumed effect is a differentiation in terms of a variety of sonic sub-atmospheres within the congress centre. The methodology developed in the project is intended to function as a tool for design measures of large indoor spaces. It is an interdisciplinary tool in that it supports acousticians as well as architects. The case-study may serve as a pilot model for future applications of redesign of the sonic atmosphere in large indoor spaces.

    This paper is a result of a research project, executed by the acoustic consultancy company ÅF-Ingemansson and the University College of Arts, Crafts & Design (Konstfack), Stockholm. The project has funding from the White’s Foundation for research and ARKUS, a Swedish foundation for the improvement of qualifications within architecture.

  • 3.
    Hellström, Björn
    et al.
    University College of Arts, Crafts and Design, Institutionen för Konst (K).
    Nilsson, Mats
    Becker, Peter
    Lundén, Peter
    Acoustic Design Artifacts and Methods for Urban Soundscapes2008In: The 15th International Congress on Sound and Vibration In: International Journal of Acoustics & Vibration, 2008, p. 52-52Conference paper (Refereed)
    Abstract [en]

    The research question is: “How to develop and apply acoustic artifacts and design methodologies for improving soundscapes in urban outdoor spaces?” In the project, this research question is limited to two specific types of urban outdoor spaces – city-park and city-square – and to two types of acoustic design artifacts. These are: I. Dynamic promotion of qualitative site specific sounds (e.g., the overall site specific sonic atmosphere, sounds from human activities, birds and fountains), which creates an improved soundscape. II. Sound-art installations, that creates delimited auditory sub-spaces within the park/square. The purpose and method is: 1. To provide two case-studies of artistic soundscape improvement, one in a noise polluted city-park and one in a city-square. The case-studies will serve as models for future applications of the new acoustic design artifacts. 2. To create and validate an innovative acoustic design methodology based on state-of-the-art real-time acoustic simulation tools integrated into the design process. The methodology will be validated in psychoacoustic listening experiments and field studies. 3. To determine the potential of the two acoustic design artifacts (I Dynamic promotion of qualitative site specific sounds, and II Sound-art installations) for providing pleasant and restorative soundscapes, in order to strengthening the social interaction as well as the spatial and aesthetical qualities in noise polluted city parks/squares. The present project beats a new track by combining acoustic design with sound art research, integrating methodologies based on real-time acoustic simulation and application of psychoacoustic methodology for validating simulations and for evaluating perceptual, emotional and behavioural effects on visitors to public open spaces. The ongoing research project, financed by the Swedish Research Council, is executed by the University College of Arts, Crafts and Design (Konstfack), Gösta Ekman Laboratory – Stockholm University and Karolinska Institutet and the Interactive Institute, all in Stockholm, Sweden.

  • 4. Torehammar, Clas
    et al.
    Hellström, Björn
    University College of Arts, Crafts and Design, Institutionen för Konst (K).
    Nine sound-art installations in public space2012In: 41st International Congress and Exposition on Noise Control Engineering 2012 (INTER-NOISE 2012): Proceedings of a meeting held 19-22 August 2012, New York City, New York, USA., Red Hook, NY, USA: Institute of Noise Control Engineering (INCE) , 2012Conference paper (Refereed)
    Abstract [en]

    The aspect of sound as a design element in an architectural context has been discussed for a long time, but there are still today very few permanent projects put into practice. The functional use of acoustics is easily comprehended when utilized to reduce unwanted noise from roads, or when it is perfected to convey speech and music in concert halls. To add sounds to create a sense of space, use it as a quality or defining identity is however still an unexplored field of knowledge. Finding the right balance between creating a quality for the space with dynamics and variety, while still being sustainable over time is challenging. The paper presents theories, methods, findings and results from a large project including nine installations. The project concerns indoor sound installations in large public spaces in Stockholm including acoustic investigations, electro acoustic installations and composition of sound installations for the specific space. The method is both scientific and art-based. The sound design is used as a way of empowering site-specific functions and architectural themes, but also in some cases as a solitary intentional characteristic quality of the space.

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