User guide User guide

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.