ASME 8-1-2011 商品标志重新申请合格证书

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【英文标准名称】:FreeFieldAcousticReferencetoTelephonyMeasurements
【原文标准名称】:电话测量的自由场声学基准
【标准号】:IEEE1652-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008-12-10
【实施或试行日期】:
【发布单位】:美国电气电子工程师学会(US-IEEE)
【起草单位】:IEEE
【标准类型】:()
【标准水平】:()
【中文主题词】:声学测量;声信号;声学;通信设备;自由场;测量;测量技术;反射系数的测量;反射;反射特性;声音;电信;电话系统;电话机;电话;电话应用
【英文主题词】:Acousticmeasurement;Acousticsignals;Acoustics;Communications;Freefields;Measurement;Measuringtechniques;Reflectancemeasurement;Reflection;Reflectioncharacteristics;Sound;Telecommunications;Telephonesystems;Telephones;Telephony;Telephonyapplication
【摘要】:Thisstandardprovidesthetechniquesandrationaleforreferencingacoustictelephonymeasurementstothefreefield.Itappliestoear-relatedmeasurementssuchasreceive,sidetone,andoverall.Acommonacousticreferencepointisneededforcomparingelectroacousticperformanceofhandset,headset,handsfree,andotherkindsoftelephoneterminals.Itisalsoneededforcomparingtelephoneterminalswithotherdevicessuchasloudspeakers,mobilecommunicationdevices,multimediaterminals,andconsumeraudioequipment.Thefreefieldistheappropriatereferencepointbecausetheresultsrelatecloselytowhatisheardbythelistener.Therefore,thefreefieldisamorewidelyapplicablereferencepointfortelephonymeasurementsthanthetraditionalERP(earreferencepoint).
【中国标准分类号】:M11
【国际标准分类号】:33_040_35
【页数】:25P.;A4
【正文语种】:英语


Product Code:SAE AS20708/35
Title:Synchro, Torque Receiver Transmitter, Type 18TRX6B
Issuing Committee:Ae-7a Generators And Controls Motors And Magnetic Devices
Scope:No Scope Available