Decibel Addition and SubtractionSound levels are generally expressed in decibels, which are logarithmic and so cannot be manipulated without being converted back to a linear scale. You must first antilog each number, add or subtract and then log them again in the following way:
For example, adding three levels 94.0 + 96.0 + 98.0:
Or use the calculator!
发表于 2018-11-7 19:38:22
