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Reproducing Multichannel Sound on any Speaker Layout

Consumers are more and more interested in multichannel sound. However, installing a surround system is still a headache for the average user. The ITU recommendations are generally incompatible with homes arrangement and people install their system how they can, which generally results in large spatial sound distortions. This paper presents a system allowing to overcome this problem by adapting multichannel sound to the actual loudspeaker layout. This system consists of a small calibration microphone measuring loudspeaker characteristics (3D position, frequency response) and a process which remaps multichannel sound over the calibrated layout so as to compensate the measured loudspeakers misconfiguration, including full 3D position.

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