Acoustic Characteristics Study on Tone/i/with ContinuousIy VariabIe Pitch and Loundness Made by NormaI AduIts
10.3969/j.issn.1006-7299.2014.06.009
- VernacularTitle:正常成人发音调、响度周期性连续起伏变化／i／音的声学分析
- Author:
Qing ZHANG
;
Xiao LIU
;
Zhaoming HUANG
;
Qin WAN
- Publication Type:Journal Article
- Keywords:
Maximum countingability;
Acoustic characteristics;
Speech rate;
Gender
- From:
Journal of Audiology and Speech Pathology
2014;(6):592-596
- CountryChina
- Language:Chinese
-
Abstract:
Objective By analyzing the graph features of fundamental frequency at different rates of/i/with continuously variable pitch and loundness made by normal adults,we could explore that the rate and gender have some impact on the graph to lay the foundation of regulating the clinical maximum counting ability.Methods Nor-mal adults of 51 (25 males,26 females were included).After each deep breathing,the subjects respectively took sustained speech/i/ with continuously variable pitch and lounolness twice at different rates of fast,medium and slow speed.Some parameters were measured byDoctor Speechat different rates of the tone/i/:Total time(T), Mean time standard deviation (MTSD),Mean wave crest (MWC),Mean wave trough (MWT),Mean frequency range (MFR),Mean frequency range standard deviation (MFRSD),comparing the speed having some effect on those above parameters with gender.ResuIts ①With the increasing rate of speech,the tone/i/of T (P<0.001), MFR (P<0.01)and MTSD (P<0.001)were significantly decreased,MWT significantly increased (P<0.001), While the MWC and MFRSD did not change significantly (P>0.05 ).②The tone /i/ of T (P>0.05 )were not effected by gender,female's MWT (P<0.001),MWC (P<0.001),MFR (P<0.001),MFRSD (P<0.01)were obviously higher than male's,while female's MTSD were significantly larger than male's (P<0.01).ConcIusion We should consider the impact of rate of speech and gender in clinical tests and values of MCA.The maximum counting capacity can be respectively tested at three different rates of speech for each subject,but only are the tone/i/of fun-damental frequency graphs with MWT,MWC,MFR,and MFRSD in normal range with corresponding speed and gender,can we get the value or can the value be valid.
