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Synthesis of environmental sounds in multimedia applications

Association for the Advancement of Computing in Education
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  • Ecology
  • Geography


in: H. Maurer (Ed.) Educational Multimedia and Hypermedia–EDMEDIA'95. Charlottesville (USA): Association for the Advancement of Computing in Education (AACE), 1995, p. 793 [ISBN 1-880094-15-0] 7 9 3 Synthesis of Environmental Sounds in Multimedia Applications Eugen Munteanu, Alireza Darvishi, Valentin Guggiana, Helmut Schauer Department of Computer Science, University of Zurich, Switzerland E-Mail: [email protected] Matthias Rauterberg Usability Laboratory, Work and Organizational Psychology Unit Swiss Federal Institute of Technology (ETH), Zurich, Switzerland Masoud Motavalli Swiss Federal Laboratories for Material Testing and Research (EMPA), Dübendorf, Switzerland 1 Introduction This paper presents work in progress on automatic generation of "environmental sounds" based on physical modelling. The increase in complexity of the Graphical User Interfaces and the expansion of Virtual Reality and multimedia applications has led to the necessity of using sound to ease the human computer interaction. This category of sounds can be used as non-speech audio presentation of objects and as interaction mechanisms to non- visual interfaces. They occur in everyone´s experience and exclude the necessity of previous special training. They are also very suggestive, permitting the meaningful mapping of events from the real world to computer- related activities and are not annoying for the user. 2 The Approach Every sound could be described as result of interaction between objects in specific environments. Each interaction has attributes that influence the generated sound. One can distinguish between object-specific and context-specific attributes. The first category includes material parameters, shape, size and allows us to find for each object a physical model (i.e. the equation of motion with boundary conditions and their solutions), assuming that the natural modes of vibration are at the origin of the sound. The second one includes parameters such as: position of the interaction point re

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