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Calculating the difference (in decibels) between the RMS levels of two signals

Question asked by BrettG on Sep 17, 2010
Latest reply on Sep 17, 2010 by BrettG

Comparing the linear level of two signals is fairly simple in SigmaStudio. You can basically calculate the envelope of each signal (using peak, MS, or running average), and then subtract the two outputs to find the linear difference in amplitude.


However, what about if you want to compare two signals to see if their RMS levels are a certain number of decibels apart? Logarithmic calculations are more difficult.