Measuring Spatial MIMO Impulse Responses in Rooms Employing Spherical Transducer Arrays

Farina A, Chiesi L. Measuring Spatial MIMO Impulse Responses in Rooms Employing Spherical Transducer Arrays. In: AES Conference: 2016 AES International Conference on Sound Field Control. Audio Engineering Society; 2016. Paper 7-2. Available from: https://aes.org/publications/elibrary-page/?id=18311

@inproceedings{Farina2016_18311,
  author = {Farina, Angelo and Chiesi, Lorenzo},
  title = {{Measuring Spatial MIMO Impulse Responses in Rooms Employing Spherical Transducer Arrays}},
  booktitle = {AES Conference: 2016 AES International Conference on Sound Field Control},
  note = {Paper 7-2},
  year = {2016},
  month = jul,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=18311}
}

TY  - CPAPER
TI  - Measuring Spatial MIMO Impulse Responses in Rooms Employing Spherical Transducer Arrays
AU  - Farina, Angelo
AU  - Chiesi, Lorenzo
T2  - AES Conference: 2016 AES International Conference on Sound Field Control
M1  - Paper 7-2
PY  - 2016
DA  - 2016/07/06
UR  - https://aes.org/publications/elibrary-page/?id=18311
PB  - Audio Engineering Society
LA  - en
AB  - The paper presents a new measurement method aimed to characterise completely the sound propagation form a point to another point inside a room, taking into account the directionality of the source and of the receiver. The method makes use of two spherical arrays of transducers, almost-uniformly scattered on the surface of a rigid sphere, which can synthesize arbitrary polar patterns. The paper describes the beamforming method employed for synthesizing the required polar patterns over a wide frequency range, and how to process the results in various ways: graphical mapping of sound reflections inside the room, reconstructing the trajectories of such reflectionsand auralization, when for the first time both source and receiver can be allowed to freely rotate during the test.
ER  -