User`s manual

25
47. Click the Find Peak button to automatically move the marker to the largest magnitude
displayed. Adjust the Gain controls for both Trace 1 and Trace 2 and note how the indicated
magnitude for each trace is increased as gain is increased.
48. Set the Gain controls for the Yellow Trace to 40dB and the Blue Trace to 0dB. While the
demo audio CD is playing, notice how the word Gain changes to OVL
1
(display overload) for
Trace 1 and how the magnitude (Magnitude:) indication for the Trace 1 changes color from
yellow to red whenever strong peaks occur. Reduce the Gain to avoid overload distortion of
the spectral display.
49. Return both Gain controls to 0dB.
50. Click outside the Spectrum Analyzer window on the Master Control Panel window to bring up
that window, leaving the spectrum analyzer active. Do not close the Spectrum Analyzer
window. Make sure that the two HPFs, Limiter, AGC, Filters, and Equalizer are all switched
OUT. Click on the Filter 2 Config button to bring up the Lowpass filter control window.
51. Notice how the Master Control Panel will disappear while the Lowpas Configuration Window
and Spectrum Analyzer windows are displayed on the same screen. Click the Filter Active
button in the Lowpass window until it indicates that the filter is in. Trace 1 now displays the
signal going into the Lowpass filter, while Trace 2 displays the signal coming out of the
Lowpass filter. Adjust any of the Lowpass filter controls, noting the effect on the Trace 2
2
.
52. Click on the OK button in the Lowpass window to return to the Master Control Panel.
53. Note Coefficient Display and Spectrum Analyzer buttons on the Master Control Panel
allows the user to access either the Coefficient Display or the Spectrum Analyzer display, but
not both at the same time. Click on Spectrum Analyzer to return to the Spectrum Analyzer
window if it is not already visible.
54. Now turn off the Spectrum Analyzer by clicking on the Close button in the Spectrum Analyzer
window. The system will now return to the Master Control Panel.
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1
The GAIN affects the display only, enabling weaker signals to be seen; an OVL indication will not distort the
processed audio.
2
The Spectrum Analyzer functions may be adjusted by moving the mouse cursor to that window. However, the
Spectrum Analyzer window may not by closed at this time.