Partial Levels List
The noise level caused by one of many sources at a receiver point is the partial level. The total receiving level is the energetic sum of the partial levels. The partial levels of several sources at a receiver can be listed on a table.
- Enter a point source using the mouse. Select the object "point source" from the toolbox and click on an arbitrary location on the screen (scale 1:1000).
- In edit mode, click with the right mouse button on the border of the point source. The point source’s edit window is opened. Enter an A-weighted sound power level of 100 dB(A).
Entering an A-weighted sound power level of 100 dB(A)
Note
This value being entered for the first object will be kept for all further objects of the same type.
- Enter another 9 point sources using the mouse.
- Open the object table „Point Source“ on menu Tables|Sources|Point Source.
- Click with the right mouse button into column „Name“ to open the context menu.
- Select the command „Change Column“.
Object table for point sources with context menu in column „Name“
- Specify on „Replace with“: „PS ##“ and press OK. The name will be replaced by the string PS and counting number.
- Select the receiver from the toolbox and enter a receiver at a location among the group of point sources.
-
Start the calculation by clicking the pocket calculator symbol
in the symbol bar. -
Change to the edit mode by click to the edit mode symbol
in the toolbox. -
Click on the border of the receiver point. The dialog opens. Move the dialog to the side of the CadnaA-main window.
- Click on the button "partial level" to display the list of partial levels.
Partial levels list
- You may sort the partial levels list for one of the performance parameters, e.g. Lde.
- Click with the right mouse button in the respective table column and select the command Sort from the context menu.
Note
In order to display a list of all partial levels for several receivers select the command Partial Level on the Tables menu after calculation.