摘要
目的分析正常成人在不同语速下发音调、响度周期性连续起伏变化/i/音的基频曲线特征,探讨语速及性别对其的影响,为规范最大数数能力(maximum counting ability,MCA)测试和取值提供参考。方法 51例正常成人(男25例,女26例)深吸气后分别以快、中、慢速持续发音调、响度周期性连续起伏变化/i/音各2次,采用"启音博士言语测量仪"分别测量不同语速下该/i/音的总时长(total time,T)、周期波动(mean time standard deviation,MTSD)、波峰均值(mean wave crest,MWC)、波谷均值(mean wave trough,MWT)、平均基频范围(mean frequency range,MFR)、基频波动(mean frequency range standard deviation,MFRSD),比较语速和性别对各项指标的影响。结果 1随着语速的提高,声样/i/的T(P<0.001)、MFR(P<0.01)和MTSD(P<0.001)显著变小,MWT显著变大(P<0.001),而MWC和MFRSD无明显变化(P>0.05);2声样/i/的T不受性别影响(P>0.05),女性声样的MWT(P<0.001)、MWC(P<0.001)、MFR(P<0.001)、MFRSD(P<0.01)均显著大于男性,而男性声样的MTSD显著大于女性(P<0.01)。结论进行MCA测试和取值时,需考虑语速和性别两个因素的影响。建议应分别测试受试者三种语速状态下的MCA,只有当各语速状态下声样/i/基频曲线图的MWT、MWC、MFR、MFRSD和MTSD值在相应语速、性别所对应的正常范围内时,方能取值或取值有效。
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 by＆quot;Doctor Speech＆quot;at 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.
出处
《听力学及言语疾病杂志》
CAS
CSCD
北大核心
2014年第6期592-596,共5页
Journal of Audiology and Speech Pathology
关键词
最大数数能力
声学特征
语速
性别
Maximum countingability
Acoustic characteristics
Speech rate
Gender
作者简介
张青，女，河北人，在读博士，主要研究方向为言语障碍的评估与矫治。
通讯作者：万勤（Email：ada．wan@hotmail．com）
