Adobe 22011292 User Guide - Page 215

ADOBE AUDITION 201 User Guide Minimum RMS Power This value is the minimum Root Mean Squared amplitude (closer to what the ear hears) of the waveform that is scanned using a window of the size given below as the RMS Window Width. Press the [->] button to have the playback cursor jump to the average quietest section of the waveform. The Waveform Statistics dialog is automatically closed. Maximum RMS Power This value is the maximum Root Mean Squared (closer to what the ear hears) amplitude of the waveform that is scanned using a window of the size given below as the RMS Window Width. Press the [->] button to have the playback cursor jump to the average loudest section of the waveform. The Waveform Statistics dialog is automatically closed. Average RMS Power This figure represents the average power of the entire selection. This is a good measure of the overall loudness of the waveform selection. Total RMS Power This figure represents the total power of the entire selection given as RMS amplitude. Actual Bit Depth The waveform's bit depth (or "float" if it uses the full 32-bit float range) is reported here. Copy Data to Clipboard Press this button to copy all information displayed in the General tab to the Windows clipboard. You can then paste this info into a text editor or any other Windows application that supports pasting of text from the clipboard. Histogram Tab This section displays a histogram of the RMS amplitude values in the highlighted audio selection. (A histogram is a bar chart that shows the distribution of frequencies, with heights of the bars representing observed frequencies.) This can be useful for determining future amplification amounts, dynamic compression amounts, and more. The graph shows which amplitudes are most common. The x-axis (horizontal) ruler measures the amplitude in dB, while the y-axis (vertical) ruler measures percentage. The more audio there is at a particular amplitude, the more the graph will show for that amplitude. Left/Right Buttons Use the buttons to display the corresponding channels. • Select the Left option to see the waveform's left channel visualized as a histogram. • Pressing the Right option displays the right channel of the waveform in histogram form. Different colors are used to represent each of the two channels. RMS Settings Control the display with these settings: • 0dB = FS Sine Wave: If this option is checked, then this means that 0 dB displayed in any of the RMS boxes is equivalent to a sine wave at full scale (with peak amplitude at 0dB - using every sample value in the 16-bit range). If you generate a max amplitude sine wave, it'll read 0dB if this button is chosen.