ANSI/IEEE 661:1979
电话连接线客观声级额定值的测定标准方法

Standard Method for Determining Objective Loudness Ratings of Telephone Connections


 

 

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标准号
ANSI/IEEE 661:1979
发布
1979年
发布单位
美国国家标准学会
 
 
适用范围
Determines the loudness rating of partial and complete telephone connections. For complete telephone connections, comprising overall and sidetone transmission paths, the procedures involve measurement of acoustic input and output pressures. For partial telephone connections comprising transmitting, receiving, or connection paths, the procedures involve measurement of acoustics pressures and electric voltages.

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