Abstract
This chapter deals with microphone arrays. It is arranged according to the different methods available to proceed through the different problems and through the different mathematical methods. After discussing general properties of different array types, such as plane arrays, spherical arrays, or scanning arrays, it proceeds to the signal processing tools that are most used in speech processing. In the third section, backpropagating methods based on the Helmholtz–Kirchhoff integral are discussed, which result in spatial radiation patterns of vibrating bodies or air.
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Abbreviations
- 3-D:
-
three-dimensional
- BEM:
-
boundary-element method
- CNMAT:
-
Center for New Music and Audio Technologies
- DOA:
-
direction of arrival
- FEM:
-
finite-element method
- GCC:
-
generalized cross-correlation
- GISD:
-
generalized internal source density
- HELS:
-
Helmholtz equation least squares
- LCMV:
-
linear constraint minimum variance
- MVDR:
-
minimum variance distortionless response
- SNR:
-
signal-to-noise ratio
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Bader, R. (2014). Microphone Array. In: Rossing, T.D. (eds) Springer Handbook of Acoustics. Springer Handbooks. Springer, New York, NY. https://doi.org/10.1007/978-1-4939-0755-7_29
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