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
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