Adobe 22011292 User Guide - Page 216

202 CHAPTER 10 Analyze Menu - Edit View • 0dB = FS Square Wave: If this option is selected, then a full scale square wave will read out as 0dB for the RMS. Some users expect a full scale square wave to be 0dB, while others expect a full scale sine wave to be 0dB. Since a full scale square wave is about 3.02dB louder than a full scale sine wave, these RMS boxes will adjust by about 3dB when you toggle between them. Account for DC If this box is checked, when calculating the RMS values, the DC offset found is subtracted out before doing the RMS calculation. This means that if your signal has a DC offset (say, a quiet signal that is well above the center line) then the actual RMS signal amplitude is actually quite small, but could read much higher because of the DC amount. So, for the most accurate signal-relative RMS readings, you would want to account for DC. Otherwise, even a signal that is total silence, but has a high DC offset, will read as having a high RMS, which may not be what you want. Window Width Adobe Audition measures the RMS over a window (measured in milliseconds) of this size when calculating the RMS minimum and maximum values. Recalculate RMS After adjusting the Window Width value, click this button to recalculate the RMS values based on the new window size.