Consiglio Nazionale delle Ricerche

Tipo di prodottoArticolo in rivista
TitoloAN OPTIMAL FILTERING TECHNIQUE TO REDUCE THE INFLUENCE OF LOW-FREQUENCY NOISE ON CLICK-EVOKED OTOACOUSTIC EMISSIONS
Anno di pubblicazione1995
FormatoCartaceo
Autore/iTognola, G; Ravazzani, P; Grandori, F
Affiliazioni autoriCNR,CTR SYST THEORY, MILAN,ITALY
Autori CNR e affiliazioni
  • FERDINANDO GRANDORI
  • PAOLO GIUSEPPE RAVAZZANI
  • GABRIELLA TOGNOLA
Lingua/e
  • inglese
AbstractThere is a need for methods capable of increasing the detectability of transient-evoked otoacoustic emissions (TEOAE). Detection of an emission is based commonly on either visual inspection and cross-correlation between replicate recordings or cross-spectral analysis. Performance of these methods is obviously influenced by the residual noise level. Residual noise is often of low frequency and can be reduced by digital off-line filtering. For this purpose, an optimal high-pass filtering technique is proposed. Cross-correlation between replicates of TEOAEs was used to determine the cut-off frequency that maximizes the signal-to-noise (S/N) ratio. This is shown in a series of responses characterized by various S/N ratios. Data have been scored both visually and with quantitative methods before and after the use of high-pass filtering. The capability to detect the signal was increased with only a marginal decrease in the total power of the emissions.
Lingua abstractinglese
Altro abstract-
Lingua altro abstract-
Pagine da243
Pagine a250
Pagine totali-
RivistaBritish journal of audiology (Print)
Attiva dal 1973 al 2001
Editore: Whurr Publishers. - London
Paese di pubblicazione: Regno Unito
Lingua: inglese
ISSN: 0300-5364
Titolo chiave: British journal of audiology (Print)
Titolo abbreviato: Br. j. audiol. (Print)
Numero volume della rivista29
Fascicolo della rivista3
DOI10.3109/03005369509086592
Verificato da refereeSì: Internazionale
Stato della pubblicazionePublished version
Indicizzazione (in banche dati controllate)
  • ISI Web of Science (WOS) (Codice:A1995RE98200003)
Parole chiaveTransient-Evoked Otoacoustic Emissions; Detection Of Emissions; Low-Frequency Noise; Digital Filtering; Cross-Correlation; Cross-Spectrum
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-
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