Wave Front Reconstruction Using the Spatial Covariance Matrices Method

Hagiwara H, Takahashi Y, Miyoshi K. Wave Front Reconstruction Using the Spatial Covariance Matrices Method. J Audio Eng Soc. 2012;60(12):1038-1050. Available from: https://aes.org/publications/elibrary-page/?id=16644

@article{Hagiwara2012_16644,
  author = {Hagiwara, Hiroki and Takahashi, Yoshinori and Miyoshi, Kazunori},
  title = {{Wave Front Reconstruction Using the Spatial Covariance Matrices Method}},
  journal = {Journal of the Audio Engineering Society},
  volume = {60},
  number = {12},
  pages = {1038--1050},
  year = {2012},
  month = dec,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=16644}
}

TY  - JOUR
TI  - Wave Front Reconstruction Using the Spatial Covariance Matrices Method
AU  - Hagiwara, Hiroki
AU  - Takahashi, Yoshinori
AU  - Miyoshi, Kazunori
T2  - Journal of the Audio Engineering Society
J2  - J. Audio Eng. Soc.
VL  - 60
IS  - 12
SP  - 1038
EP  - 1050
PY  - 2012
DA  - 2012/12/06
UR  - https://aes.org/publications/elibrary-page/?id=16644
PB  - Audio Engineering Society
LA  - en
AB  - Although sound-field reproduction methods have been extensively studied over the past decades, there is no single approach that dominates. This paper describes a method called Co-Variance Method (CVM) that reproduces a spatial covariance matrix of the original sound field without knowledge of sound source locations. Conventional methods based on physical theory require an impractically large number of transducers. In contrast, CVM is based on the statistical properties of a sound field. Simulation experiments evaluated the relation between reproduction errors and the number of microphone-loudspeaker pairs when reconstructing the wave fronts of sinusoidal, impulse, and saw-tooth-like impulsive signals. With CVM, a wave front resembling that of the original field was obtained in the listening area.
ER  -