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Otoacoustic emissions and improved pass/fail separation using wavelet analysis and time windowing

  • A. Janusauskas
  • V. Marozas
  • B. Engdahl
  • H. Hoffman
  • Owe Svensson
  • Leif Sörnmo
Publiceringsår: 2001
Språk: Engelska
Sidor: 134-139
Publikation/Tidskrift/Serie: Medical & Biological Engineering & Computing
Volym: 39
Nummer: 1
Dokumenttyp: Artikel i tidskrift
Förlag: Springer


A new method is presented for the purpose of improving pass/fail separation during transient evoked otoacoustic emission (TEOAE) hearing screening. The method combines signal decomposition in scales using the discrete wavelet transform, non-linear denoising and scale-dependent time windowing. The cross-correlation coefficient between two subaveraged, processed TEOAE signals is used as a pass/fail criterion and assessed in relation to the pure-tone, mean hearing level. The performance is presented in terms of receiver operating characteristics for a database of 5214 individuals. The results show that the specificity improves from 68% to 83% at a sensitivity of 90% when compared with the conventional wave reproducibility parameter.


  • Other Medical Engineering


  • ISSN: 0140-0118

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