User manual

231
Audio processing and functions
3. Click the “Process” button.
The spectrum is computed and displayed as a graph.
4. You can adjust the display with the settings in the dis-
play window:
5. If you move the mouse pointer over the graph, a
crosshair cursor follows the graph curve and the display in
the upper right corner shows the frequency/note and level
at the current position.
To compare the level between two frequencies, move the pointer to one
of the frequencies, right-click once and move the pointer to the second
frequency. The delta value (the difference in level between the current
position and the right-click position) is displayed in the upper right corner
(labeled “D”).
• If you analyze stereo audio and selected the “Stereo” op-
tion in the first dialog, the graphs for the left and right chan-
nel are superimposed in the display, with the left channel
graph in white and the right channel graph in yellow.
The display in the upper right corner shows the values for the left channel
– to see the right channel values, hold down [Shift]. An “L” or “R” is dis-
played to indicate which channel values are shown.
6. You can leave the window open or close it by clicking
the “Close” button.
If you leave it open and the “Active” checkbox is ticked, the result of the
next Spectrum Analysis will be displayed in the same window.
Statistics (Cubase only)
The Statistics function on the Audio menu analyzes the
selected audio (events, clips or range selections) and dis-
plays a window with the following information:
Setting Description
dB When this is activated, the vertical axis shows dB values.
When it is deactivated, values between 0 and 1 are
shown.
Freq. log When this is activated, frequencies (on the horizontal
axis) are displayed on a logarithmic scale. When it is de-
activated, the frequency axis is linear.
Precision Indicates the frequency resolution of the graph. This
value cannot be changed here, but is governed by the
Size in Samples setting in the previous dialog.
Frequency/
Note
Allows you to select whether you want the frequencies to
be displayed in Hertz or with note names.
Min. Sets the lowest frequency shown in the graph.
Max. Sets the highest frequency shown in the graph. By ad-
justing the Min and Max values, you can take a closer look
at a smaller frequency range.
Active When this is activated, the next Spectrum Analysis will ap-
pear in the same window. When deactivated, new Spec-
trum Analysis results will appear in separate windows.
Item Description
Min. Sample
Value
The lowest sample value in the selection, as a value be-
tween -1 and 1 and in dB.
Max. Sample
Value
The highest sample value in the selection, as a value be-
tween -1 and 1 and in dB.
Peak Amplitude The largest sample value (in absolute numbers) in the se-
lection, in dB.
DC Offset The amount of DC Offset (see “Remove DC Offset” on
page 223) in the selection, as a percentage and in dB.
Estimated
Resolution
Even though an audio file is in 16 or 24 bits, it may have
been converted from a lower resolution. The Estimated
Resolution value makes an educated guess about the ac-
tual audio resolution, by computing the smallest level dif-
ference between two samples.