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Note: If you are using a recent Apple MacBook you may not be able to hear the 3D demos in this video in 3D due to a known problem in the MacBook design (related to the location of the internal "subwoofer") that creates a strong Left-Right imbalance in the audio, which could not be compensated for while creating the 3D audio for this video.    Edgar Choueiri is professor of applied physics at Princeton University.   Pure Stereo   Princeton.edu

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