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Titolo:
Optimization of TEOAE recording protocols - A linear protocol derived fromparameters of a time- frequency analysis: a pilot study on neonatal subjects
Autore:
Hatzopoulos, S; Cheng, J; Grzanka, A; Morlet, T; Martini, A;
Indirizzi:
Univ Ferrara, Dept ENT, Audiol Serv, I-44100 Ferrara, Italy Univ Ferrara Ferrara Italy I-44100 , Audiol Serv, I-44100 Ferrara, Italy Karolinska Inst, Stockholm, Sweden Karolinska Inst Stockholm SwedenKarolinska Inst, Stockholm, Sweden Warsaw Univ Technol, Inst Elect Fundamentals, Warsaw, Poland Warsaw Univ Technol Warsaw Poland st Elect Fundamentals, Warsaw, Poland Hop Edouard Herriot, UPRESA CNRS 5020, Lyon, France Hop Edouard Herriot Lyon France Herriot, UPRESA CNRS 5020, Lyon, France
Titolo Testata:
SCANDINAVIAN AUDIOLOGY
fascicolo: 1, volume: 29, anno: 2000,
pagine: 21 - 27
SICI:
0105-0397(2000)29:1<21:OOTRP->2.0.ZU;2-4
Fonte:
ISI
Lingua:
ENG
Soggetto:
EVOKED OTOACOUSTIC EMISSIONS; CRITERIA;
Keywords:
Gabor spectrogram; linear and nonlinear protocols; otoacoustic emissions; TEOAEs; time-frequency distributions;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
14
Recensione:
Indirizzi per estratti:
Indirizzo: Hatzopoulos, S Univ Ferrara, Dept ENT, Audiol Serv, 203 Corso Giovecca, I-44100 Ferrara, Italy Univ Ferrara 203 Corso Giovecca Ferrara Italy I-44100taly
Citazione:
S. Hatzopoulos et al., "Optimization of TEOAE recording protocols - A linear protocol derived fromparameters of a time- frequency analysis: a pilot study on neonatal subjects", SC AUDIOL, 29(1), 2000, pp. 21-27

Abstract

Linear and non-linear TEOAE protocols were compared in terms of nine parameters in order to define the protocol producing recordings with the highestsignal quality (lowest noise and highest signal-to-noise ratio). The pilotproject acquired data using ILO-92 apparatus from 220 neonates (397 ears) at the second/third day after birth in three European laboratories. A Gaborspectrogram time-frequency representation of the recordings showed considerable frequency dispersion in TEOAE latencies >4.0 ms. The data, analysed with a Wilcoxon test, indicated that a linear TEOAE protocol: (i) generates recordings of a lower noise and a higher signal-to-noise (S/N) ratio in the2.0, 3.0, 4.0 kHz TEOAE bands; (ii) the increase in the S/N ratio can result in a decrement of the required number of TEOAE sweeps; (iii) the higher values of S/N can be used in the estimation of more robust pass-fail criteria, minimizing the percentage of false positives and negatives.

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Documento generato il 01/04/20 alle ore 23:40:05