using the Praat v.3.9.10. and Microsoft Excel 2000 programs. ANOVA operating with a significance level of 0.05 was done by SPSS for Windows v.10 The results of the acoustic analysis divide tracheoesophageal speakers into two groups. In the first group...The objective of this research is to investigate the acoustic characteristics of tones in Thai produced by tracheoesophageal speakers,compared with those of normal speakers and also to test their perceptual efficacy. The acoustic characteristics

The purpose of this study was to analysis the speech patterns of Down Syndrome children in order to see the aberration and the limitations of Down Syndrome (DS) speech in comparison to that of a normal child. To achieve the purposes of this study... the phonology of the Down Syndrome children and normal 12-14 years old children was studied. In addition, the acoustic characteristics of vowels and tones were also analyzed using the freeware Praat software. The subjects for the study consisted of three

This study aims to analyze the effects of the similarity in categorization of Chinese and Thai tones on Chinese tone perception by Thai learners. The analysis can be divided into two parts: the analysis on similarity of acoustic phonetic... and that of perception. For the analysis on similarity of acoustic phonetic, we conduct the phonetic experiments to examine tone pitch and contour, and then discuss this result with the result of similarity of perception experiment. The experiment results are used

auditorily analyzed to obtain the tone system and the pattern of tone split and tone merge. In addition, the fundamental frequency value of each word was analyzed acoustically using the Praat speech analysis program and shown as line graphs using Microsoft.... Analysis of the influence of age-group and attitude shows that the 15-25 years old group uses the Song lexical items least. The 35-45 and the 55-over 65 age-groups use the same quantity of Song lexical items. This indicates that the younger the speakers

. The results show that the pronunciation of stress and reduced vowel in both speech styles, of all the subjects combinded, is over 50% incorrect. The application of the statistical analysis of paired samples t-test shows that social variables; gender, level... of education, and speech styles, do not have insignificant influence on the pronunciation of the subjects studied at the confidence level of 0.05. The acoustics show that the students have a tendency to pronounce stressed-syllables with long vowels

also aimed to investigate listeners' perception of the tones of the two esophageal groups. The spoken word sets, recorded on cassette, were analyzed with the Praat program in two different ways: manually and automatically. The results of the acoustic... analysis are that the frequencies produced by both groups of esophageal speakers had different pitch heights, were not smooth, and sometimes were unable to be analyzed because of their aperiodic waveform. The fundamental frequency range of the normal