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An outdoor spatially-aware audio playback platform exemplified by a virtual zoo

Healy, Graham and Smeaton, Alan F. (2009) An outdoor spatially-aware audio playback platform exemplified by a virtual zoo. In: ACM Multimedia 2009, 19-24 October 2009, Beijing, China. ISBN 978-1-60558-608-3

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Abstract

Outlined in this short paper is a framework for the construction of outdoor location-and direction-aware audio applications along with an example application to showcase the strengths of the framework and to demonstrate how it works. Although there has been previous work in this area which has concentrated on the spatial presentation of sound through wireless headphones, typically such sounds are presented as though originating from specific, defined spatial locations within a 3D environment. Allowing a user to move freely within this space and adjusting the sound dynamically as we do here, further enhances the perceived reality of the virtual environment. Techniques to realise this are implemented by the real-time adjustment of the presented 2 channels of audio to the headphones, using readings of the user's head orientation and location which in turn are made possible by sensors mounted upon the headphones. Aside from proof of concept indoor applications, more user-responsive applications of spatial audio delivery have not been prototyped or explored. In this paper we present an audio-spatial presentation platform along with a primary demonstration application for an outdoor environment which we call a {\em virtual audio zoo}. This application explores our techniques to further improve the realism of the audio-spatial environments we can create, and to assess what types of future application are possible.

Item Type:Conference or Workshop Item (Paper)
Event Type:Conference
Refereed:Yes
Additional Information:Contact Alan.Smeaton@dcu.ie
Uncontrolled Keywords:sensors;
Subjects:Computer Science > Digital electronics
Computer Science > Interactive computer systems
Computer Science > Multimedia systems
Engineering > Acoustical engineering
DCU Faculties and Centres:DCU Faculties and Schools > Faculty of Engineering and Computing > School of Computing
Research Initiatives and Centres > CLARITY: The Centre for Sensor Web Technologies
Publisher:Association for Computing Machinery
Official URL:http://dx.doi.org/10.1145/1631272.1631427
Copyright Information:Copyright 2009 ACM
Use License:This item is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 3.0 License. View License
Funders:Science Foundation Ireland
ID Code:4720
Deposited On:29 Jul 2009 09:40 by Alan F. Smeaton. Last Modified 29 Apr 2010 12:06

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