NDLI: Automatic glottal inverse filtering

Content Provider	IEEE Xplore Digital Library
Author	Veeneman, D. BeMent, S.
Copyright Year	1984
Description	Author affiliation: The University of Michigan, Ann Arbor, MI (Veeneman, D.)
Abstract	Early detection or abnormal laryngeal function is generally difficult with present techniques. The glottal volume-velocity (v-v) is an indicator of laryngeal function, but cannot be measured directly from acoustic speech because of vocal tract filtering. Digital inverse filtering is the basis for an automatic on-line method we have developed to determine the glottal v-v for normal and pathological speech. This method was developed by addressing four specific areas. First, the interval of the undriven vocal tract response during closed glottis is identified from an electroglottographic signal. Second, the vocal tract configuration is estimated by a linear prediction analyis of the closed glottis interval of the speech waveform. Third, low frequency noise is removed by a high pass filtering operation followed by a low pass compensation. Fourth, the low frequency, bias inherent in the process is removed.
Starting Page	56
Ending Page	59
File Size	220055
Page Count	4
File Format	PDF
DOI	10.1109/ICASSP.1984.1172801
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1984-03-19
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Filtering Speech analysis Acoustic signal detection Acoustic measurements Volume measurement Digital filters Pathology Signal processing Low-frequency noise Frequency
Content Type	Text
Resource Type	Article

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