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1. Perceptive approaches: the illusion of "phantom sources
The first family of approaches to spatial sound reproduction is based on simple control of interaural localization cues from a set of two or more loudspeakers located around the listener in the reproduction space.
1.1 Stereophony
The most widely used model of spatial sound reproduction is still stereophony, using a pair of loudspeakers located in front of the listener [6] [7]. By controlling the relative delay or gain of the signals sent to each loudspeaker, it is possible to recreate a simplified version of the interaural localization cues, the interaural time difference (ITD) and the interaural level difference (ILD) at the two ears. This reproduction of localization cues creates a fictitious sound source whose direction of origin can be freely controlled...
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Perceptive approaches: the illusion of "phantom sources
Physical sound field reconstruction
Bibliography
Databases
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HRTF measurements
AUDIS http://www.euracoustics.org/
CIPIC http://interface.cipic.ucdavis.edu/CIL_html/CIL_HRTF_database.htm
Software libraries
DirectSound (DirectX, Microsoft) http://www.microsoft.com/windows/directx
EAX http://www.soundblaster.com/eax/
FMOD http://www.fmod.org/
...Research projects
Ambisonics http://www.ambisonic.net/
LISTEN (European project IST-1999-20646) http://recherche.ircam.fr/equipes/salles/projets.html
Organizations
European Acoustics Association (EEA) http://www.euracoustics.org/
Interactive Audio Special Interst Group (IASIG) http://www.iasig.org/
Institute for Research and Coordination of Acoustics and Music (IRCAM)
Manufacturers
Creative (sound cards) http://fr.europe.creative.com/
MH Acoustics LLC http://www.mhacoustics.com/
Soundfield http://www.soundfield.com/
...
The Ultimate Scientific and Technical Reference
