title: [Average spectral analysis of the voice. A comparison between the normal voice and the voice altered by various categories of laryngeal pathology].
abstract: Long-time spectral analysis shows a highly significant difference between a sample of normal voices, a sample of voices of nodule- and polyp-carriers, and a sample of voices of small malignant lesion-carriers. Schematically, pathologic voices due to lesions of the vocal folds have a relative excess of noise in the high part of the spectrum (6-10 kHz), but, in cases of small malignancy, this high-frequency noise also extends to the region 4-6 kHz. No clear difference appears between spectra of voices from nodule-carriers and voices of polyp-carriers. A standardized, phonetically selected text, seems to improve the discrimination power.
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D007822:Laryngeal Neoplasms / Q000503:physiopathology*; D007828:Laryngoscopy; D008297:Male; D008875:Middle Aged; D011127:Polyps / Q000503:physiopathology*; D013018:Sound Spectrography / Q000379:methods; D013063:Speech Discrimination Tests; D014827:Vocal Cords / Q000503:physiopathology; D014831:Voice
vernacular_title: Analyse spectrale moyennée de la voix. Comparaison de voix normales et de voix altérées par différentes catégories de pathologies laryngées.