Title :
Time-frequency analysis of acoustic emissions: a wavelet approach
Author :
Tognola, G. ; Ravazzani, P. ; Ruohonen, J. ; Grandori, F.
Author_Institution :
Dept. of Biomed. Eng., Politecnico di Milano, Italy
Abstract :
Wavelets analysis was performed to obtain time-frequency representations of otoacoustic emissions (OAEs) from normal ears. High S/N ratio emissions evoked by click stimuli at 16 different intensity levels were recorded from healthy subjects and used as test material. Time-frequency representations were used to analyse the relationships between frequency components and latencies
Keywords :
acoustic signal processing; medical signal processing; otoacoustic emissions; time-frequency analysis; wavelet transforms; acoustic emissions analysis; click stimuli; frequency components; healthy subjects; inner ear; intensity level; latencies; normal ears; time-frequency representations; wavelet approach; Acoustic emission; Acoustic waves; Band pass filters; Delay; Ear; Signal resolution; Time frequency analysis; Wavelet analysis; Wavelet transforms; Wideband;
Conference_Titel :
Engineering in Medicine and Biology Society, 1995., IEEE 17th Annual Conference
Conference_Location :
Montreal, Que.
Print_ISBN :
0-7803-2475-7
DOI :
10.1109/IEMBS.1995.579487
