Prewhitening for intelligibility gain in hearing aid arrays

Michael J. Link, Kevin M. Buckley

Research output: Contribution to journalArticlepeer-review

22 Scopus citations


In this article, prewhitening multimicrophone data prior to use in an optimum spatial-filter preprocessor for a monaural hearing aid is considered. Considering preprocessor capabilities, interference signal spectral content and intelligibility, it is argued that prewhitening is advantageous. This advantage is illustrated via simulation of a head worn array. Also, an effective procedure for the design of (prewhitening) digital filters is presented. The effectiveness of this filter design technique is shown by presenting several prewhitening filter design examples.

Original languageEnglish (US)
Pages (from-to)2139-2145
Number of pages7
JournalJournal of the Acoustical Society of America
Issue number4
StatePublished - Apr 1993

ASJC Scopus subject areas

  • Arts and Humanities (miscellaneous)
  • Acoustics and Ultrasonics


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