Simulation controls
Visualize the simulated Sound Pressure Level (SPL) data using different modes. To access these modes, use the controls at the top of the viewport when Simulation is activated.
View the following guides to learn more about each of the simulation control dropdowns.
Bandwidth
View the Simulation by different bandwidths by selecting from the Bandwidth drop-down.
The Broadband Selection mode provides a direct SPL heatmap for all frequencies on audience zones and boundary zones. By selecting Broadband from the drop-down menu, you can view the unweighted broadband in the direct SPL heatmap, displaying raw SPL values without any frequency weighting applied.
Select a different weighting to view the Simulation for the desired bandwidth. Selecting dB(C) from the drop-down menu lets you view the C-weighted broadband in the direct SPL heatmap. Similarly, selecting dB(A) from the drop-down menu allows you to visualize the A-weighted broadband in the direct SPL heatmap.
Frequency
The frequency mode lets you visualize SPL heatmaps at various narrowband frequency resolutions by dividing the signal energy into fractional octaves. To activate this mode and access the specific frequency bands, first select the desired bandwidth in the Bandwidth dropdown, then select an option in the Frequency dropdown to select a center frequency within the available range of 22.4 Hz - 22,400 Hz.
Beam interference
The beam interference toggle allows for analysis of how beams interfere with each other by assuming that the input signal routed to all beams is perfectly correlated, allowing you to identify any potential problem areas of constructive and destructive interference within your venue.
Beam interference is shown for all frequencies, but its impact is more perceptible at lower frequencies. To access this mode, turn Beam Interference on in the drop-down menu in the simulation controls.
Acoustic shadowing
Acoustic shadowing is a way to represent zones obstructing one another from the sound propagating from an array. By default, HOLOPLOT Plan's Simulation Engine does not create acoustic shadowing with any zones, and all audience zones and boundary zones are treated as acoustically transparent.
The Acoustic Shadowing dropdown sets the Simulation Engine’s use of acoustic shadowing to define boundary zones as non-acoustically transparent. When this setting is enabled, boundary zones act as acoustically non-transparent surfaces. Sound waves emitted from an array travel along a straight line path to a zone, and when they encounter a boundary zone obstacle, the sound wave is blocked from continuing to any further zones. The SPL will drop visibly on the heat map in certain directions due to the shadowing effect. This phenomenon is called acoustic shadowing. The more boundary zones you have and the more complex their geometries are, the slower the simulation with acoustic shadowing becomes, so it's best to leave this setting disabled unless you need it.
Environmental condition
Environmental conditions can be added to presets. Find out more in:
Working with environmental conditionsThey can also be created to test how a preset will perform under certain atmospheric circumstances, which can be done using the Env. Condition drop down in the Simulation.
All the environmental conditions in your project will be visible in the dropdown. Selecting an environmental condition will allow you to view how the environmental condition in the selected preset will perform. If it's the same as active, you will view the simulation under the same conditions the preset has been optimized for. If you select a different environmental condition, you will be able to see how the environmental condition of the selected preset will perform under different temperature, humidity, and atmospheric pressure conditions.
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