鼻腔共鳴障礙兒童客觀評估中的聲學(xué)參數(shù)研究.pdf

1、華東師范大學(xué)碩士學(xué)位論文鼻腔共鳴障礙兒童客觀評估中的聲學(xué)參數(shù)研究姓名：李寧申請學(xué)位級別：碩士專業(yè)：言語聽覺科學(xué)指導(dǎo)教師：黃昭鳴201005012010華東師范大學(xué)碩士畢業(yè)論文A墨STRACTResonanceDisorderisoneoftheSpeechDisordersItmainlycontainsOralResonanceDisorderandNasalResonanceDisorderResonanceAssessmentco

2、ntainsassessmentofOralResonanceFunctionandassessmentofNasalResonanceFunctionThisdissertationfocusesonthelateroneTheassessmentmethodofNasalResonanceFunctionhasbeenwellpracticedinChina，whichmainlycontainsthesubjectiveandob

3、jectiveassessmentNasalance，asoneoftime—parameters，iStheprimaryparameterofobjectiveassessmentnowHoweverresonanceiSthecharacteristicoffrequencydomains，SOfrequency—parametersaremorereasonablefortheassessmentofresonancefunct

4、ionThisstudyfocusestheresearchofacousticparametersinfrequencydomainsfortheobjectiveassessmentofNasalResonanceFunctionFirstlythesoundswithoralnasalseparaterecordedwereanalyzedbythetechniqueoftheprocessingofthevoicesignal，

5、andtheacousticparametersofbothchannelswerepickedup；secondlytherecordedmaterialselectedaccordingtothecharacteristicofparameterswascollectedin35agednormalchildrenandoneswithnasalresonancedisorder；thirdlytherecordedmaterial

6、wasanalyzedandstudiedexperimentallyfordistinguishingthedifferentstylesofthevoicesignal；finallythenormalchildrenandoneswithnasalresonancedisorderwereanalyzedcontrastivelythedifferencesofwhichwerecomparedTheacousticparamet

7、ersinthisstudymainlycontainedthefirstformantanditsbandwidthofnasalcavityaswellasthesecondformantoforalcavityAccordingtotheresearchresults，thefirstformantofnasalcavityandthesecondformantoforalcavitycanbeusedtodistinguishw

8、hethertherearenasalsinfinalsoundsornot；thefirstformantanditsbandwidthofnasalcavitycanbeusedtodistinguishwhethertheinitialconsonantsarenasalsornot‘ThisstudyissignificativeforclinicapplicationsTheacousticparametersinfreque