Voice acoustic analysis of normal Taiwanese adults.

摘要: ing fundamental frequency (F0), sound pressure level (SPL), jitter, shimmer, harmonics-to-noise ratio (H/N ratio), and maximum phonation time (MPT) can now be easily recorded analyzed with a computer. Because these systems are widely used in clinical practice, this study was designed to establish the normal acoustic analysis parameters Taiwanese adults. Methods. From Mar. 2002 Dec. 2002, 45 women men younger than 50 years old were recruited as subjects for study. The commercially available Computer Speech Lab Aerophone II system manufactured by Kay Elemetrics Corp. record aforementioned data under comfortable phonation. Each gender separated equally into 3 age subgroups. Then differences between subgroups investigated statistics software SPSS 10.0. Our results compared from previous reports. Results. value of F0 (counting; vowel/a/) greater females (203.2 21.7; 213.4 25.4 Hz) males (118.3 17.3; 121.3 16.4 Hz). Conversely, MPT (28.0 9.4 sec) (22.6 7.6 sec). There no significant average SPL jitter female (77.8 5.5 dB; 0.66 0.27%) male (77.5 0.56 0.23%) Except shimmer H/N subgroup, there within both respect age. Conclusions. We have developed body various different groups genders. It seems that majority voice characteristics adults relatively stable did not change aging 20 49. But variable genders groups. However, older therefore require further investigation.