With the measurement of average sound pressure level and sound power level, the noise reduction result of the oil pan made by sandwich steel plate was proved.
通过平均声压级和声功率级的测试验证了复合钢板试制的油底壳的降噪效果。
If the toy has a clearly defined operating cycle, measure the time average (the equivalent continuous) sound pressure level in each microphone position during at least one whole cycle.
如果被测玩具有明显的运行周期，至少在一个完整周期内测得每个麦克风的按时平均(均等连续)声压水平。
A global transfer function (g) representing a spatial average of sound pressure level in the room generated by the loudspeaker (L1) is determined.
确定表示由扬声器(L1)生成的在房间中的声压水平的空间平均值的全局传递函数(G)。
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