T. P. Traitement du Signal Maîtrise E.E.A. - LASC

Filtering and Analysis of Noise
5 Press OK to close the Apply Filter dialog box.
The filter is applied to the selected signal and the filtered signal
blnoise[vector] is listed in the Signals list in SPTool.
Step 4: Analyzing a Signal
You can analyze and print signals using the Signal Browser. You can also play
the signals if your computer has audio output capabilities.
For example, compare the signal noise to the filtered signal blnoise:
1 Shift+click on the noise and blnoise signals in the Signals list of SPTool to
select both signals.
2 Press the View button under the Signals list.
The Signal Browser is activated and both signals are displayed in the
display region. (The names of both signals are shown above the display
region.) Initially, the original noise signal covers up the bandlimited
blnoise signal.
3 Push the selection button on the toolbar, , to select the blnoise signal.
The display area is updated. Now you can see the blnoise signal
superimposed on top of the noise signal. The signals are displayed in
different colors in both the display region and the panner. You can change
the color of the selected signal using the Line Properties button on the
toolbar, .
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