A Concentric Compact Spherical Microphone and Loudspeaker Array for Acoustical Measurements

Miranda L, Cabrera DA, Stewart K. A Concentric Compact Spherical Microphone and Loudspeaker Array for Acoustical Measurements. In: AES Convention 135. Audio Engineering Society; 2013. Paper 8936. Available from: https://aes.org/publications/elibrary-page/?id=16986

@inproceedings{Miranda2013_16986,
  author = {Miranda, Luis and Cabrera, Densil A. and Stewart, Ken},
  title = {{A Concentric Compact Spherical Microphone and Loudspeaker Array for Acoustical Measurements}},
  booktitle = {AES Convention 135},
  note = {Paper 8936},
  year = {2013},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=16986}
}

TY  - CPAPER
TI  - A Concentric Compact Spherical Microphone and Loudspeaker Array for Acoustical Measurements
AU  - Miranda, Luis
AU  - Cabrera, Densil A.
AU  - Stewart, Ken
T2  - AES Convention 135
M1  - Paper 8936
PY  - 2013
DA  - 2013/10/06
UR  - https://aes.org/publications/elibrary-page/?id=16986
PB  - Audio Engineering Society
LA  - en
AB  - Several commonly used descriptors of acoustical conditions in auditoria (ISO 3382-1) utilize omnidirectional transducers for their measurements, disregarding the directional properties of the source and the direction of arrival of reflections. This situation is further complicated when the source and the receiver are collocated as would be the case for the acoustical characterization of stages as experienced by musicians. A potential solution to this problem could be a concentric compact microphone and loudspeaker array, capable of synthesizing source and receiver spatial patterns. The construction of a concentric microphone and loudspeaker spherical array is presented in this paper. Such a transducer could be used to analyze the acoustic characteristics of stages for singers, while preserving the directional characteristics of the source, acquiring spatial information of reflections and preserving the spatial relationship between source and receiver. Finally, its theoretical response and optimal frequency range are explored.
ER  -