Detection improvement for neonatal click evoked otoacoustic emissions by time-frequency filtering

Authors:
V. W. Zhang;Z. G. Zhang;B. Mcpherson;Y. Hu;Y. S. Hung
Affiliations:
Centre for Communication Disorders, The University of Hong Kong, Hong Kong Special Administrative Region, China and National Acoustic Laboratories, 126 Greville Street, Chatswood, NSW 2067, Austra ...;Department of Electrical and Electronic Engineering, The University of Hong Kong, Hong Kong Special Administrative Region, China;Centre for Communication Disorders, The University of Hong Kong, Hong Kong Special Administrative Region, China;Department of Orthopaedics and Traumatology, The University of Hong Kong, Hong Kong Special Administrative Region, China;Department of Electrical and Electronic Engineering, The University of Hong Kong, Hong Kong Special Administrative Region, China
Venue:
Computers in Biology and Medicine
Year:
2011

Citing 3
Cited 0

High resolution time-frequency analysis of otoacoustic emissions

Technology and Health Care
Signal reconstruction from modified auditory wavelet transform

IEEE Transactions on Signal Processing
De-noising by soft-thresholding

IEEE Transactions on Information Theory

Quantified Score

Hi-index	0.00

Visualization

Abstract

This study employed a time-frequency filtering technique to improve click evoked otoacoustic emission (CEOAE) detection at lower frequency bands, and hence to reduce the number of referral cases in neonatal OAE screening. Using this approach the detectability of CEOAEs, in terms of lower frequency SNRs and whole wave reproducibility, was significantly improved. Evaluations of screening outcomes demonstrated this method significantly reduced the overall referral rate, by 2.5 percentage points in initial CEOAE hearing screening. This approach may have potential application in OAE technology and in neonatal hearing screening programmes.