标签: coustic

ACQUAcousticTestACQUAcousticTestpresentationACQUAAcousticTestpresentationMTKWCP_H/WSeven_YangPDFcreatedwithpdfFactorytrialversionwww.pdffactory.comOutline：1、Spec.Intro.2、Hardwareenvironment(CMD55)3、Softwareenvironment(ACQUA+META)4、Testitems(CTTL)5、AttentionitemsPDFcreatedwithpdfFactorytrialversionwww.pdffactory.com1、Spec.Intro.TestItems:ThereditemsareCTTLtestitemsSendingfrequencyresponse(SFR)Sendingloudnessrating(SLR)Receivingfrequencyresponse(RFR)Receivingloudnessrating(RLR)Sidetones:Sidetonemaskingrating(STMR)Listenersidetonerating(LSTR)Telephoneacousticcouplingloss(TAL):Echoloss(EL)StabilitymarginSendingdistortionReceivingdistortionSidetonedistortionIdlechannelnoise:SendingReceivingAmbientnoiserejectionCTTL:ChinaTelecommunica……