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To display a frequency spectrum in MultiView:
1)
Under
Frequency spectrum
, check the
Show
box.
2)
To adjust the vertical scale of the frequency spectrum, choose a value from the
Scale
list. The new setting
takes effect immediately.
3)
To display the amplitude for any specific frequency component, move the green lines.
•
To move one of the vertical green lines, right-click in the frequency-spectrum display.
•
To adjust the position of a line after using right-click, press the left- or right-arrow keys.
•
To line up all of the green lines, double-right-click.
When you move the green line, it moves between the frequency values determined by the FFT, which in
general are not integer values.
4)
To change the FFT sample size, choose the menu item
Settings
>
Set FFT Sample Size
and the Set FFT Sample
Size dialog is displayed.
