5 display – Soft dB I-Track User guide User Manual

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6.2.5

Display

The display interface allows setting several display parameters.

These parameters are:

• Spectrum: 1/1 Octave, 1/3 Octave or FFT;
• Weight: A, C or Z (no weight);
• Bandwidth: Low and high frequency range to consider. The global level is computed on this

frequency range;

• Displayed Value:

• Pressure, Intensity or PI index;
• Global level or single frequency;

• Color Scale:

• Manual Range: the user sets the maximum and minimum values of the color range;
• All Data: the maximum and minimum values in the map are used to define the

maximum and minimum values of the color range;

• 10, 5 and 3 dB MS: Sets the color range to the most significant dB of the map. As an

example, if the maximum value of the map is 93.8 dB and the 5 dB (MS) setting is
selected, the color scale will range from 88.8 to 93.8 dB.

• Display Sign: Allows the user to select the displayed intensity sign :

• Positive Only;
• Negative Only;
• Both Signs (Absolute).

• Transparency: Sets the transparency of the sound map over the background image;
• View Grid: Displays the computing grid on the map;
• View Points: Displays the measurement points on the map;
• View Tracks: Displays the scanning tracks on the map;
• View Triangles: Displays the triangular interpolation structure on the map.

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