Consiglio Nazionale delle Ricerche

Tipo di prodottoArticolo in rivista
Titolo'Derived nonlinear' versus 'linear' click-evoked otoacoustic emissions
Anno di pubblicazione1996
FormatoCartaceo
Autore/iRavazzani, P; Tognola, G; Grandori, F
Affiliazioni autoriCentro Teoria dei Sistemi CNR, Milano
Autori CNR e affiliazioni
  • FERDINANDO GRANDORI
  • PAOLO GIUSEPPE RAVAZZANI
  • GABRIELLA TOGNOLA
Lingua/e
  • inglese
AbstractRecordings of emissions evoked in response to transient stimuli (TEOAE) are partially contaminated by the initial stimulus artifact. For this reason, a nonlinear estimation method is widely used (derived nonlinear response, DNLR). The aims of this paper are: (1) to analyse some very basic properties of the derived nonlinear emissions such as the short-time input/output relationships; and (2) to show similarities and differences between the classical averaging (linear) and the derived nonlinear recording techniques, in the same ears, both in time and in the frequency domain. At latencies greater than about 6 ms, responses which are recorded using the derived nonlinear technique exhibit no additional features in comparison with linear recordings, at all stimulus levels. At latencies less than 6 ms, the derived nonlinear technique greatly reduces the linear content of the acoustic artifact, and the response may be considered as the initial part of the emission. However, the derived nonlinear responses tend to be considerably noisier than the linear emissions, thus reducing the effectiveness of the technique. The linear responses show a strikingly similar frequency content with respect to the derived nonlinear responses, at least at a high stimulus level and around the main peaks of the spectrum.
Lingua abstractinglese
Altro abstract-
Lingua altro abstract-
Pagine da73
Pagine a86
Pagine totali-
RivistaAudiology
Attiva dal 1971
Editore: Karger - Basel
Paese di pubblicazione: Svizzera
Lingua: multilingue
ISSN: 0020-6091
Titolo chiave: Audiology
Titolo proprio: Audiology.
Titolo abbreviato: Audiology
Titolo alternativo: Audiologie
Numero volume della rivista35
Fascicolo della rivista2
DOI-
Verificato da refereeSì: Internazionale
Stato della pubblicazionePublished version
Indicizzazione (in banche dati controllate)
  • ISI Web of Science (WOS) (Codice:A1996VH93000002)
  • Scopus (Codice:2-s2.0-0030057332)
  • PubMed (Codice:8864254)
Parole chiaveDerived TEOAE, TEOAE Cross spectra
Link (URL, URI)http://www.tandfonline.com/doi/pdf/10.3109/00206099609071933?needAccess=true
Titolo parallelo-
Data di accettazione07/12/1995
Note/Altre informazioni-
Strutture CNR
  • IEIIT — Istituto di elettronica e di ingegneria dell'informazione e delle telecomunicazioni
Moduli CNR
    Progetti Europei-
    Allegati
    • PDF Version of the paper
      Descrizione: Ravazzani et al., 1996