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Proceedings Paper

Implementation issues of 3D audio in a virtual room
Author(s): Jarmo Hiipakka; Tommi Ilmonen; Tapio Lokki; Matti Groehn; Lauri Savioja
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Paper Abstract

This paper presents the audio system built for the virtual room at Helsinki University of Technology. First we discuss the general problems for multichannel sound reproduction caused by the construction of, and the equipment in virtual rooms. We also describe the acoustics of the room in question, and the effect of the back-projected screens and reverberation to the sound. Compensation of the spectral deficiencies and the problems with the large listening area and high frequency attenuation are introduced. The hardware configuration used for sound reproduction is shortly described. We also report the software applications and libraries built for sound signal processing and 3D sound reproduction.

Paper Details

Date Published: 22 June 2001
PDF: 10 pages
Proc. SPIE 4297, Stereoscopic Displays and Virtual Reality Systems VIII, (22 June 2001); doi: 10.1117/12.430849
Show Author Affiliations
Jarmo Hiipakka, Helsinki Univ. of Technology and Nokia Research Ctr. (Finland)
Tommi Ilmonen, Helsinki Univ. of Technology (Finland)
Tapio Lokki, Helsinki Univ. of Technology (Finland)
Matti Groehn, Helsinki Univ. of Technology (Finland)
Lauri Savioja, Helsinki Univ. of Technology (Finland)


Published in SPIE Proceedings Vol. 4297:
Stereoscopic Displays and Virtual Reality Systems VIII
Mark T. Bolas; Andrew J. Woods; Mark T. Bolas; John O. Merritt; Stephen A. Benton, Editor(s)

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