"3 Dimensional Sound"?


Many speaker ads boast of "3 dimensional sound" from their product. I can easily hear the width dimension (based on left and right panning) and a sense of depth. But can you get height information from two speakers?
socprof

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I have a Chesky test disc that has a track with the height test where a shaker is recorded with a single microphone going from low to high with the narrator teling you where it is. I definitely can tell in my system that the shaker is moving from low to high. The recording would have to be done with a single or two microphones to capture this natural soundstage. Most recordings now are done in a studio on a multi-track, recorded at different sessions even, so I doubt they reveal the soundstage this way. Some labels stresses the single mic approach in a natural hall like a church to recreate the live experience, notably Chesky and Mapleshade.