Fundamentals of Microphone Array Processing

Jacob Benesty, Gongping Huang, Jingdong Chen, Ningning Pan

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

Abstract

After a brief but insightful discussion on the limitations of single microphone processing and the unquestionable advantages of spatial information, in this chapter, we make a concise overview of the most fundamental concepts in microphone array processing. We start with the signal model by considering the general case of three-dimensional arrays. In this context, we explain how to conduct linear beamforming, from which very useful performance measures are derived. Then, a large family of fixed and adaptive beamformers are proposed as well as some signal statistics estimators. Finally, we explain how different array geometries can be compared.

Original languageEnglish
Title of host publicationSpringer Topics in Signal Processing
PublisherSpringer Science and Business Media B.V.
Pages25-56
Number of pages32
DOIs
StatePublished - 2024

Publication series

NameSpringer Topics in Signal Processing
Volume22
ISSN (Print)1866-2609
ISSN (Electronic)1866-2617

Keywords

  • Adaptive beamformer
  • Beamforming
  • Beampattern
  • Directivity factor
  • Fixed beamformer
  • Three-dimensional (3-D) sensor arrays
  • White noise gain

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