Abstract
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.
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.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the AES 25th UK CONFERENCE |
| Number of pages | 7 |
| Publication date | 2012 |
| Publication status | Published - 2012 |
| Event | AES 25th UK CONFERENCE: Spatial Audio in Today’s 3D World - University of York’s Music Research Centre, York, United Kingdom Duration: 25 Mar 2012 → 27 Mar 2012 |
Conference
| Conference | AES 25th UK CONFERENCE |
|---|---|
| Location | University of York’s Music Research Centre |
| Country/Territory | United Kingdom |
| City | York |
| Period | 25/03/2012 → 27/03/2012 |