This paper compares two low-cost tetrahedral ambisonic microphones, an experimental microphone and a Core Sound TetraMic with a Soundfield MkV or SPS422B serving as a standard for comparison. Recordings were made in natural environments, of live performances, and in a recording studio. The results of analytical and direct listening tests of these recordings are discussed in this paper. A description of the experimental microphone and the recording setup is included.
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