| 1. |
- Berg, Jan
(författare)
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Evaluation of perceived spatial audio quality
- 2006
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Ingår i: Journal of Systemics, Cybernetics and Informatics. - 1690-4532 .- 1690-4524. ; 4:2, s. 10-14
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Tidskriftsartikel (refereegranskat)abstract
- The increased use of audio applications capable of conveying enhanced spatial quality puts focus on how such a quality should be evaluated. Different approaches to evaluation of perceived quality are briefly discussed and a new technique is introduced. In a series of experiment, attributes were elicited from subjects, tested and subsequently used for derivation of evaluation scales that were feasible for subjective evaluation of the spatial quality of certain multichannel stimuli. The findings of these experiments led to the development of a novel method for evaluation of spatial audio in surround sound systems. Parts of the method were subsequently implemented in the OPAQUE software prototype designed to facilitate the elicitation process. The prototype was successfully tested in a pilot experiment. The experiments show that attribute scales derived from subjects' personal constructs are functional for evaluation of perceived spatial audio quality. Finally, conclusions on the importance of spatial quality evaluation of new applications are made.
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| 2. |
- Berg, Jan, et al.
(författare)
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Perceived properties of parameterised music for interactive applications
- 2006
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Ingår i: Journal of Systemics, Cybernetics and Informatics. - 1690-4532 .- 1690-4524. ; 4:2, s. 65-71
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Tidskriftsartikel (refereegranskat)abstract
- Traditional implementations of sound and music in interactive contexts have their limitations. One way to overcome these and to expand the possibilities of music is to handle the music in a parameterised form. To better understand the properties of the musical parameters resulting from parameterisation, two experiments were carried out. The first experiment investigated selected parameters' capability to change the music; the second experiment examined how the parameters can contribute to express emotions. From these experiments, it is concluded that users without musical training perform differently from musicians on some of the parameters. There is also a clear association between the parameters and the expressed basic emotions. The paper is concluded with observations on how parameterisation might be used in interactive applications.
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| 3. |
- Dodig-Crnkovic, Gordana
(författare)
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Knowledge Generation as Natural Computation
- 2008
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Ingår i: Journal of Systemics, Cybernetics and Informatics. - 1690-4532 .- 1690-4524. ; 6:2, s. 12-16
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Tidskriftsartikel (refereegranskat)abstract
- Knowledge generation can be naturalized by adopting computational model of cognition and evolutionary approach. In this framework knowledge is seen as a result of the structuring of input data (data ¨ information ¨ knowledge) by an interactive computational process going on in the agent during the adaptive interplay with the environment, which clearly presents developmental advantage by increasing agentfs ability to cope with the situation dynamics. This paper addresses the mechanism of knowledge generation, a process that may be modeled as natural computation in order to be better understood and improved.
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| 4. |
- Gustavsson, Rune
(författare)
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Sustainable Virtual Utilities Based on Microgrids
- 2008
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Ingår i: Journal of Systemics, Cybernetics and Informatics. - : International Institute of Informatics and Cybernetics. - 1690-4532 .- 1690-4524. ; Vol 6:No 5, s. 53-58
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Tidskriftsartikel (refereegranskat)
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