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Article | REF: TE5912 V1

Spatial sound reproduction

Authors: Nicolas TSINGOS, Olivier WARUSFEL

Publication date: February 10, 2008 | Lire en français

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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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