| Comparison of the Objective Paramters of the Voice According to the SexObjective The objective of this work was to compare objective parameters difference between two sexes. Methods The voice samples were collected from 153 patients with dysphonia and 80 subjects with normal voices. The objective parameters, including fundamental frequency (FO), jitter, shimmer, fundamental frequency standard deviation (FOSD), maximal frequency, minimal frequence, normalized noise energy (NNE), harmonic-to-noise ratio(HNR), signal-to-noise ratio(SNR) and maximal phonatory time (MPT) which were measured mainly on a sustained /a/ were recorded on an Dr. Speech for Windows Software. According to the G (overall dysphonia) component of the GRBAS score on a 4-point scale ranging from 0 for normal to 3 for severe dysphonia. Results the values of FO, maximal frequency, minimal frequence, FOSD, NNE and MPT are different significantly between man and women. For FO, maximal frequency, minimal frequency and FOSD, the values of the women are superior to those of the man; but for NNE and MPT, the values of the women are inferior to those of the man. For the measures of the jitter, shimmer, HNR and SNR, there are not of significant difference between the man and the women. Conclusion The study confirm that there are significant difference between man and women in objective parameters of the voice and it is necessary to analyze separately resultats according to the sex. |
