[Recognition of transient evoked otoacoustic emissions].
OBJECTIVE
To measure the cochlear function more accurately, seeking for a novel method to recognize transient evoked otoacoustic emission (TEOAE) from the recorded signal.


METHODS
Time-frequency domain method was used to effectively recognize TEOAE and stimulating artifact by their different short time Fourier transformation (STFT).


RESULTS
The STFT of stimulating artifact features decayed rapidly in the air by exponential rule. The frequency distribution of TEOAE was similar to that of the stimulating signal, but the latency and shifting of TEOAE showed a complicated patern. The STFTs of stimulating artifact and TEOAE varied significantly.


CONCLUSIONS
STFT recognition method can separate TEOAE and stimulating artifact effectively so as to improve the accuracy of TEOAE recognition.
Li
L
L
Department of Biomedical Engineering, Institute of Basic Medical Sciences, CAMS and PUMC, Beijing 100005.
Lin
J
J
Zhang
Z
Z
D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D005260:Female; D005583:Fourier Analysis; D006319:Hearing Loss, Sensorineural / Q000503:physiopathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D017084:Otoacoustic Emissions, Spontaneous