Digital Audio Corporation PCAP II, User Manual

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follows: (The actual spectral display will depend upon the
audio being processed.)
Use the mouse to set up all controls as they appear in Figure
3-15. Make sure that the
Primary In selection is highlighted
in the Yellow Trace signal select box, that the Line Output
selection is highlighted in the Blue Trace signal select box,
and that the Displayed Trace is set to
Both .
44.
Try adjusting the Num Averages control using the + and -
buttons in the Averager block. Note that as the Num
Averages parameter is increased, the spectrum traces react
more slowly and smoothly to the input signal. Return the
Num Averages setting to 8.
45.
Click on the Run/Freeze button in the Averager block until
Freeze is indicated. You should see the spectrum waveform
stop updating.* Click on the Clear button in the Averager
block; both spectrum waveforms should now be cleared
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*The spectral analysis freezes immediately; however, the display will briefly
continue to update as remaining data is read from the PCAP II external processor.
Figure 3-15 Tutorial Spectrum Analyzer Window