`Voice quality´ in larynx cancer patients: computerised spectral analysis of impedance LX-waveforms compared to expert assessment

Author

Christopher, Moore ; Nicholas, Slevin ; Susan, Winstanley

Author_Institution

North Western Med. Phys., Christie Hosp., Manchester, UK

Volume

2

fYear

1999

fDate

36434

Abstract

A technique for objective assessment of larynx cancer patient voice quality using a single parameter is introduced. It is based upon the evaluation of vocal fold functionality using fundamental-harmonic normalisation (FHN) of spectra derived from impedance LX-waveforms for the vowels /ae/ and /i/. Patient FHN-spectra are correlated against pooled FHN-spectral `normal´ reference standards constructed using data from healthy volunteers. Spectral correlations closely reflect refined expert judgement. There is close correlation between voice quality and the stage of larynx disease

Keywords

bioelectric phenomena; cancer; electric impedance measurement; medical diagnostic computing; medical signal processing; spectral analysis; speech; speech processing; computerised spectral analysis; expert assessment; healthy volunteers; impedance LX-waveform; larynx cancer patient voice quality; larynx disease; objective assessment; patient fundamental-harmonic normalisation spectra; pooled fundamental-harmonic normalisation spectral normal reference standards; refined expert judgement; spectral correlations; vocal fold functionality; vowels; Cancer; Frequency; Hospitals; Impedance; Larynx; Natural languages; Physics; Quality assessment; Spectral analysis; Speech;

fLanguage

English

Publisher

ieee

Conference_Titel

[Engineering in Medicine and Biology, 1999. 21st Annual Conference and the 1999 Annual Fall Meetring of the Biomedical Engineering Society] BMES/EMBS Conference, 1999. Proceedings of the First Joint

Conference_Location

Atlanta, GA

ISSN

1094-687X

Print_ISBN

0-7803-5674-8

Type

conf

DOI

10.1109/IEMBS.1999.804129

Filename

804129