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Engineering - Signals & Communication | Study and Design of Differential Microphone Arrays

Study and Design of Differential Microphone Arrays

Benesty, Jacob, Chen, Jingdong

2013, VIII, 184 p.

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  • Provides a systematic study of differential microphone arrays from a signal processing perspective
  • Develops fundamental theory and algorithms
  • Explores to analyze and explain DMAs’ performance and limitations

Microphone arrays have attracted a lot of interest over the last few decades since they have the potential to solve many important problems such as noise reduction/speech enhancement, source separation, dereverberation, spatial sound recording, and source localization/tracking, to name a few. However, the design and implementation of microphone arrays with beamforming algorithms is not a trivial task when it comes to processing broadband signals such as speech. Indeed, in most sensor arrangements, the beamformer tends to have a frequency-dependent response. One exception, perhaps, is the family of differential microphone arrays (DMAs) that have the promise to form frequency-independent responses. Moreover, they have the potential to attain high directional gains with small and compact apertures. As a result, this type of microphone arrays has drawn much research and development attention recently. This book is intended to provide a systematic study of DMAs from a signal processing perspective. The primary objective is to develop a rigorous but yet simple theory for the design, implementation, and performance analysis of DMAs.

Content Level » Research

Keywords » Cardioid - Differential microphone arrays (DMAs) - Dipole - First-order DMA - Hypercardioid - Quadrupole - Robust DMAs - Second-order DMAs - Supercardioid - Third-Order DMAs

Related subjects » Classical Continuum Physics - Engineering - Signals & Communication

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