[feature article] The goal of spatial audio coding and reproduction is to convey some measure of the dimensional aspects of a sound event to the end listener, preferably in a practical and cost-effective manner. The importance of the spatial aspects of sound has been clear since before the dawn of audio reproduction, as evidenced, for example, in the design of concert halls. So it is not surprising that concern for the accurate capture, transmission, and reproduction of the spatial components of a sound event goes back almost to the birth of the audio industry as we know it today. Yet even now, completely accurate spatial reproduction remains elusive, and is perhaps the largest single imperfection in modern audio technology.
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