Noise Mapping Services
Noise Contouring of Measured Data

Navcon Engineering measured Sound Pressure Levels within a plant. Data was processed with the SoundPLAN Cartography Module [High sound levels : red / blue color Lower sound levels: yellow / green colors]. The noise survey was repeated after a period of 6 years. The noise difference between the two data sets were computed and plotted as a Difference Map.


Black lines: DXF outline of Refinery Data acquired every 20 ft, 5 ft above the ground.

Colors indicated the Sound Pressure Level (Red high levels and Green low levels)

[Note: The DXF plant layout is superimposed on top of the map to pin point source in respect to the measured noise levels.]



Black lines: DXF outline of Refinery Data acquired every 20 ft, 5 ft above the ground.

Contouring Spectral Data : The data was collected in 1/3 octave band within a plant. The data was also processed to visualize the magnitude of the noise levels on a frequency by frequency base. The map shows the 1/3 octave data set from the 1.6 kHz to the 10 kHz.

[Note: The DXF plant layout is superimposed on top of the map to pin point source in respect to the measured noise levels.]