Consiglio Nazionale delle Ricerche

Tipo di prodottoArticolo in rivista
TitoloOptimal band pass filtering of transient evoked otoacoustic emissions in neonates
Anno di pubblicazione1999
FormatoCartaceo
Autore/iRavazzani, P; Tognola, G; Grandori, F
Affiliazioni autoriCNR, Ctr Ingn Biomed, Piazza Leonardo da Vinci 32, I-20133 Milan, Italy.
Autori CNR e affiliazioni
  • FERDINANDO GRANDORI
  • PAOLO GIUSEPPE RAVAZZANI
  • GABRIELLA TOGNOLA
Lingua/e
  • inglese
AbstractThis paper investigated the performance of an optimal bandpass filtering technique to effectively identify click evoked otoacoustic emissions in neonates. The frequency response of the filter was optimized by maximizing the correlation coefficient between two replicate recordings (reproducibility). The optimal cut-off frequencies were also set by controlling the maximum energy loss after filtering to stop the crucial response contents being filtered along with the noise. As an additional constraint, the cut-off frequencies were forced to be outside the range of 1.6 to 4.2 kHz to avoid (in a response identification task) the spontaneous otoacoustic emissions from polarizing the cut-offs and thereby filtering fundamental frequency components, thus leading to an erroneous response classification. The best performance of the optimal filter in terms of increasing the post-filtering reproducibility was obtained when the procedure was applied to recordings whose reproducibility before filtering ranged between 60 and 80 per cent, i.e. for responses classified in most cases as partial pass.
Lingua abstractinglese
Altro abstract-
Lingua altro abstract-
Pagine da69
Pagine a74
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 rivista38
Fascicolo della rivista2
DOI-
Verificato da refereeSì: Internazionale
Stato della pubblicazione-
Indicizzazione (in banche dati controllate)
  • ISI Web of Science (WOS) (Codice:000079380800002)
Parole chiaveclick evoked otoacoustic emission identification; optimal band pass filtering; neonatal response frequency content
Link (URL, URI)-
Titolo parallelo-
Data di accettazione-
Note/Altre informazioni-
Strutture CNR
  • IEIIT — Istituto di elettronica e di ingegneria dell'informazione e delle telecomunicazioni
  • ISIB — ISIB - Milano
Moduli CNR
    Progetti Europei-
    Allegati