Directivity
NoiseModelling is a tool for producing noise maps. To do so, at different stages of the process, the application needs input data, respecting a strict formalism.
Below we describe the table DIRECTIVITY
, containing all the directivity parameters.
The other tables are accessible via the left menu in the Input tables
section.

Note
If you want to see how to use this table, have a look to the tutorial “Noise Map from Point Source - GUI” , in the section Step 5 (bonus): Change the directivity
Table definition
Warning
In the list below, the columns noted with *
are mandatory
DIR_ID
*Description: identifier of the directivity sphere
Type: Integer
THETA
Description: vertical angle in degrees, 0 (front), -90 (bottom), 90 (top), from -90 to 90
Type: Double
PHI
Description: horizontal angle in degrees, 0 (front) / 90 (right), from 0 to 360
Type: Double
HZ63
Description: attenuation levels in dB for 63 Hz
Type: Double
HZ125
Description: attenuation levels in dB for 125 Hz
Type: Double
HZ250
Description: attenuation levels in dB for 250 Hz
Type: Double
HZ500
Description: attenuation levels in dB for 500 Hz
Type: Double
HZ1000
Description: attenuation levels in dB for 1000 Hz
Type: Double
HZ2000
Description: attenuation levels in dB for 2000 Hz
Type: Double
HZ4000
Description: attenuation levels in dB for 4000 Hz
Type: Double
HZ8000
Description: attenuation levels in dB for 8000 Hz
Type: Double