The length of the selected audio affects the accuracy of the analysis. For short selections, the result is more detailed. Consider making a separate analysis of the attack in which the most drastic variations occur.
Procedure
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In the wave window, select the section of the file that you want to analyze.
If you make no selection, the whole audio file is analyzed.
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In the Audio Editor, select the Analyze tab.
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In the Tools section, click 3D Frequency Analysis.
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To edit the analysis parameters, click 3D Frequency Analysis Options.
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Adjust the parameters and click OK.
The audio is re-analyzed.