[Objective study of the voice in a normal population and in dysphonia caused by nodules and vocal XXXX ].

@entity1 @entity1740 @entity1127
A study of the objective evaluation of voice was made of 100 voices of healthy adults and 60 with disphonia (nodules and @entity1127 ). A laryngostroboscopy and an acoustic analysis was made to everyone. A sustained vowel "a" was carried out and digitalized with Dr. Speech Science software. These parameters were estimated: fundamental frequency (Fo, according to gender), Jitter, Shimmer and glottic noise (NNE, HNR, SNR). In the healthy group Fo was 139.72 in @entity1 and 267.33 in @entity1 , jitter 0.24 and shimmer 2.10. In disphonic @entity1 (nodules) Fo was 126.96 in @entity1 and 240.72 in @entity1 , jitter 0.35 and shimmer 3.25. In disphonic @entity1 ( @entity1127 ) Fo was 119.75 in @entity1 and 218.26 in @entity1 , jitter 0.50 and shimmer 4.34. These difference were statistically significant. Glottic Noise in healthy group was: NNE -13.62, HNR 24.07 and SNR 24.49; in disphonic @entity1 (nodules) was: NNE -10.65, HNR 25.21 and SNR 25.55; in disphonic @entity1 ( @entity1127 ) was: NNE -8.24, HNR 29.63 and SNR 28.22. Only the difference in the NNE was statistically significant. We highlight the importance of objective evaluation of @entity1740 .
