手机音频FTA测试介绍手机音频FTA测试介绍手机测试部术语介绍ARL DAI EL ERP LSTR LRGP MRP RLR SLR SMTR TAL Acoustic Reference Level Digital Audio Interface Echo Loss Ear Reference Point Listener SideTone Rating Loudness Rating Guard-ring Position Mouth Reference Point Receiving Loudness Rating Sending Loudness Rating SideTone Masking Rating Telephone Acoustic coupling Loss 声参考电平 数字音频接口 回波损耗 耳参考点 接收方侧音评定值 响度评定值保护环 嘴参考点 接收响度评定值 发送响度评定值 侧音掩蔽评定值 电话声耦合损耗相关标准 P.38, Transmission characteristics of Operator Telephone Systems (OTS) P.50, Artificial voices P.51, Artificial mouth P.57, Artificial ears P.76, Determination of loudness ratings; fundamental principles P.78 , Subjective testing method for determination of loudness ratings in accordance with Recommendation P.76 P.79 , Calculation of loudness ratings for telephon……
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