Is it true？ I want to know how to calculate?
回答 (1)
2015-12-03 7:23 am
The Sound Pressure Level (SPL) at Prms = 50 x 10^3 uPa is
SPL = 20.log(50x10^3/20) = 68 dB
In the calculation, 20 uPa is the threshold pressure of human hearing.
SPL = 20.log(50x10^3/20) = 68 dB
In the calculation, 20 uPa is the threshold pressure of human hearing.
收錄日期: 2021-04-21 22:42:33
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