通信终端最大声压输出限值与最大音量范围的关系研究

Research on the Relationship Between Maximum Sound Pressure Level Output Limit and Maximum Volume Range for Communication Terminals

从理论上总结了声压、响度和响度评定值等概念,指出通信终端最大音量范围和最大声压限值的不同意义。通过对国内外标准关于最大音量范围和最大声压输出限值要求的研究,进一步探讨了两者的联系和区别,并从测试的角度分析了影响终端实际可能输出最大声压的四种因素。

This article summarizes the differences theoretically among the concept of sound pressure, loudness and loudness rating, and illustrates the significance of maximum volume range and maxi- mum sound pressure level limit. With careful exam- ination of requirements for the two parameters in various standards, the article explores their inner relationship and lists four factors which may influ- ence the maximum output sound pressure in prac- tice.