How does LMS Test.Lab calculate RMS level for a sound power spectrum derived using the SOUNDPOWER function? I tried using the procedure in this link (https://community.plm.automation.siemens.com/t5/Te
Thanks in advance.
Solved! Go to Solution.
We have an FAQ on the RMS calcualtions in the Solution Center area of the Global Technical Assistance Center (GTAC) site http://www.plm.automation.siemens.com/en_us/suppor
Thanks for the reply. For the RMS scaling equation you show to provide the same answer in Excel as the cursor RMS calculation in LMS Test.Lab, I needed to multiple the amplitudes by the square of the energy and amplitude correction factors . . . . (1.633/2)^2.
Does this make sense when the spectrum format is power?
If you used a Hanning Window for the Power function then yes, the correct from Amplitude correction to Energy correction woul be be to (1.63/2)^2.