Readability improvement for time frequency analysis of pathological speech

Time-frequency representation is widely used for non-stationary signal analysis because of its straightforwardness. A disordered speech signal is analyzed with a spectrogram and pseudo Wigner-Ville distribution, then enhanced with a reassignment method to reduce cross-term components by reassigning...

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Bibliographic Details
Main Authors: Arifianto, D., Setijono, H., Sekartedjo
Format: Conference Proceeding
Language:English
Subjects:
Discrete wavelet transforms
Inspection
Instruments
Larynx
Pathology
Signal analysis
Spectrogram
Speech analysis
Speech enhancement
Time frequency analysis
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Summary:Time-frequency representation is widely used for non-stationary signal analysis because of its straightforwardness. A disordered speech signal is analyzed with a spectrogram and pseudo Wigner-Ville distribution, then enhanced with a reassignment method to reduce cross-term components by reassigning the signal energy. The reassigned spectrogram and reassigned PWVD are applied to vibrational abnormalities of vocal tract for larynx diseases determination. Examples are presented with interpretation for clinical diagnostics.
DOI:10.1109/APCCAS.2002.1114934