This dialog box enables you to edit the Calculating Parameters. If you are no longer sure that your adjustments are realistic you may set the default values by hitting the key 'Standard'. The default settings are applicable in most cases.

The parameter Maximum Reflection Order is closely correlated with the accuracy of the calculations but also with the 'Calculating Times'.

If your room design contains very many room polygons the Calculating Times will be increased considerably. In this case you may reduce the 'Maximum Reflection Order' or you delete some of the room polygons from your room design, e.g. by deleting some furniture's.

Activating complex Wall Impedances induces an increase of the calculations accuracy and of the calculating times. As a default Wall Impedances are set to real.

The better the calculations accuracy shall be the longer calculations on principle will last!

The auralization parameters Maximum Length and Sampling Rate defines the calculation of the transient room response (TRR). The TRR is required as a basis for an 'Auralization' (listening test). The TRR contains all information describing the influence of room acoustics on music reproductions in the room.

The dialog box 'Calculating Times' shows the Number of Visible Room Polygons and the total Number of Room Polygons. The number of polygons depends on the actual room design and is determined once by the calculation module CARACALC when starting the first room acoustic calculation. The sound waves can only be reflected (and partly absorbed) at visible room walls (polygons).

Additionally some estimations of the required calculating times are given depending on the 'Maximum Reflection Order'.
The calculating times are referred to one loudspeaker and one listening place. To determine the total calculating time required for a specific run these values have to be multiplied with the number of loudspeakers and listening places of the actual setup.

Calculation times for rectangular rooms (without furniture) are substantially shorter (up to 1000 times), because all the reflected sound waves can be determined and traced before the actual acoustic calculations start.