Sub-Nyquist spatial sampling using arrays of directional microphones

Vladimir Tourbabin, Boaz Rafaely

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Microphone arrays are commonly used for spatial filtering or beamforming. A variety of beamforming techniques offering high spatial resolution have been developed and are described in the literature. However, improved resolution may require an increase in the number of sensors and channels, resulting in complicated and expensive systems. In the current paper the use of arrays composed of directional sensors is proposed and the consequent benefit in terms of a reduction in the number of sensors is analyzed. It is shown that a reduction in the number of sensors can be achieved at the expense of reduced steering capabilities.

Original languageAmerican English
Title of host publication2011 Joint Workshop on Hands-free Speech Communication and Microphone Arrays, HSCMA'11
Pages76-80
Number of pages5
DOIs
StatePublished - 10 Aug 2011
Event2011 Joint Workshop on Hands-free Speech Communication and Microphone Arrays, HSCMA'11 - Edinburgh, United Kingdom
Duration: 30 May 20111 Jun 2011

Publication series

Name2011 Joint Workshop on Hands-free Speech Communication and Microphone Arrays, HSCMA'11

Conference

Conference2011 Joint Workshop on Hands-free Speech Communication and Microphone Arrays, HSCMA'11
Country/TerritoryUnited Kingdom
CityEdinburgh
Period30/05/111/06/11

Keywords

  • acoustic field
  • array signal processing
  • beamforming
  • microphone arrays

All Science Journal Classification (ASJC) codes

  • Human-Computer Interaction
  • Signal Processing
  • Communication

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