Spasmodic dysphonia, perceptual and acoustic analysis: presenting new diagnostic tools.
In this article, we investigate whether (1) the IINFVo (Impression, Intelligibility, Noise, Fluency and Voicing) perceptual rating scale and (2) the AMPEX (Auditory Model Based Pitch Extractor) acoustical analysis are suitable for evaluating adductor spasmodic dysphonia (AdSD). Voice recordings of 12 patients were analysed. The inter-rater and intra-rater consistency showed highly significant correlations for the IINFVo rating scale, with the exception of the parameter Noise. AMPEX reliably analyses vowels (correlation between PUVF (percentage of frames with unreliable F0/voicing 0.748), running speech (correlation between PVF (percentage of voiced frames)/voicing 0.699) and syllables. Correlations between IINFVo and AMPEX range from 0.608 to 0.818, except for noise. This study indicates that IINFVo and AMPEX could be robust and complementary assessment tools for the evaluation of AdSD. Both the tools provide us with the valuable information about voice quality, stability of F0 (fundamental frequency) and specific dimensions controlling the transitions between voiced and unvoiced segments.
DSiemonsLuehring@web.de
Denise Irene
DI
Siemons-Lühring
Mieke
M
Moerman
Jean-Pierre
JP
Martens
Dirk
D
Deuster
Frank
F
Müller
Philippe
P
Dejonckere
D019274:Botulinum Toxins, Type A / Q000008:administration & dosage; D003430:Cross-Sectional Studies; D003937:Diagnosis, Differential; D055154:Dysphonia / Q000175:diagnosis* / Q000188:drug therapy / Q000503:physiopathology; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007267:Injections; D008297:Male; D008875:Middle Aged; D009465:Neuromuscular Agents / Q000008:administration & dosage; D010865:Pilot Projects; D011379:Prognosis; D013065:Speech Intelligibility / Q000502:physiology; D013067:Speech Perception / Q000502:physiology*; D014833:Voice Quality / Q000502:physiology*
D009465:Neuromuscular Agents; D019274:Botulinum Toxins, Type A