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Old 03-06-2019, 03:49 AM   #13
lamacchiacosta
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Join Date: Jan 2017
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Wikipedia has a quite good article about Ambisonics:

https://en.wikipedia.org/wiki/Ambisonics

From the picture in the "higher order Ambisonics" paragraph, you can see what the orders mean:

Order 0: only omnidirectional mono signal (W) - 1 track
Order 1: omni + FrontBack + sideLR + UpDown (WXYZ) - 4 tracks
HOA (Higher Order Ambisonics) is like 1st Order but more precise with localization and positional information, thanks to a higher number of mic capsules.

MS stereo technique is not part of an Ambisonics order; is sitting in between Order 0 and Order 1, because it carries only front and sideLR horizontal information.
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