Conference paper
Metrics for performance assessment of mixed-order Ambisonics spherical microphone arrays
Mixed-order Ambisonics (MOA) combines planar (2D) higher order Ambisonics (HOA) with lower order periphonic (3D) Ambisonics. MOA encoding from spherical microphone arrays has the potential to provide versatile recordings that can be played back using 2D, 3D or mixed systems. A procedure to generate suitable layouts for a given MOA combination order is introduced consisting of rings of microphones at several elevation angles for any given MOA combination order.
Robustness and directivity measures were evaluated for four MOA layouts. Results showed that MOA vertical directivity was similar to 3D HOA and that MOA horizontal directivity was in between the planar and periphonic order.
Language: | English |
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Year: | 2012 |
Proceedings: | AES 25th UK CONFERENCE |
Types: | Conference paper |
ORCIDs: | Marschall, Marton |