Chapter

Speech Processing in Modern Communication

Volume 3 of the series Springer Topics in Signal Processing pp 281-305

Spherical Microphone Array Beamforming

  • Boaz RafaelyAffiliated withBen-Gurion University of the Negev
  • , Yotam PeledAffiliated withBen-Gurion University of the Negev
  • , Morag AgmonAffiliated withBen-Gurion University of the Negev
  • , Dima KhaykinAffiliated withBen-Gurion University of the Negev
  • , Etan FisherAffiliated withBen-Gurion University of the Negev

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Abstract

Spherical microphone arrays have been recently studied for spatial sound recording, speech communication, and sound field analysis for room acoustics and noise control. Complementary studies presented progress in beamforming methods. This chapter reviews beamforming methods recently developed for spherical arrays, from the widely used delay-and-sum and Dolph-Chebyshev, to the more advanced optimal methods, typically performed in the spherical harmonics domain.