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When the room has been entered and the radiators have been set up, you can proceed with the simulation. For this purpose, you switch over from the project data module to the rendering and mapping module, which allows you to visualize the results of the S/N computation three-dimensionally. A wizard will guide you through the infrared simulation parameters.

You can freely choose between the IR Emitters defined, turning on only one of them or even the whole ensemble. This allows you to keep different configurations in the same project in order to compare them while switching back and forth. You can choose the resolution for the mapping, enter a large step size for a rough grid and a fast calculation if you merely require an overview, or enter a small step size, which increases the simulation time but also provides more detail and accuracy.

The Audience Areas to be mapped can be selected as desired. In addition, specific spots "so-called Listener Seats" and the walls of the room can be used for mapping. One of the most important calculation settings is whether you want to switch on shadow effects or not. This is necessary for venues with balconies, columns or concave outlines. If you do not need to take into account shadows or visualize the model three-dimensionally, you can also start with a more abstract drawing. It could consist only of Audience Areas and IR Emitters, without any walls, the ceiling or the floor.

 
Figure 3: S/N Mapping with one radiator and shadow calculation switched on

 
Figure 4: S/N Mapping with additional radiators in the side nave, interference and shadowing on

Another major parameter is the interference switch. It allows you to take into account power cancellations and summation (constructive and destructive interference) due to the propagation delay of the signal on its way through the cable and air. The run time phase is considered and the quasi-waves modulated on the IR carrier are treated correctly in space and time.

Finally, it is also possible to enter an estimated value for the noise level to be expected. Additionally, the power emitted per channel is calculated with respect to the channels switched on for every selected IR Emitter.

All S/N mappings that have been computed can be saved to a file location and re-loaded at any point in time.

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