System Optimiser Quick Start¶
Welcome to System Optimiser! This short guide can be thought of as a walkthrough for building a simple loudspeaker system design. It does not cover all functions of the application, but is a good place to start for quickly measuring a venue and designing sources.
Running System Optimiser for the First Time
Upon launching System Optimiser for the first time, the Data Version Manager will open and prompt you to log in. The latest dataset must be downloaded and enabled for use with the green ‘enable’ button.
Drawing a Basic Theatre
We’re describing a rectangular theatre with stalls and a balcony. For this, we’ll use a Quad. Create one by clicking it’s button in the top bar of the Layer Manager. It’s the first button from the left - a square with a green ‘plus’ icon.
The venue is 23m wide at the end closest to the stage. We’ll use this as our Start ‘Width’ entry.
The venue is 39m wide at the back of the stalls. We’ll use this as our End ‘Width’ entry.
The stalls start at the downstage edge, so we’ll endter our Start ‘Depth’ as 0m.
Next, we’ll use our laser rangefinder/inclinometer to quickly measure the audience area. We’ll take a measurement at each point that a surface transitions into another, for example, where the stalls transition into the back wall of the venue.
We’ll enter our information in ‘Angular’ terms. System Optimiser allows for traditional ‘Cartesian’ data entry (Height and Depth) at the same time as ‘Angular’ input (Range - the distance of a point away from the measurer - and Angle - the incline of the line between the measurer and the point).
To save entering the measurements for the back of the stalls again when starting our next Quad, we’ll use the ‘Continue’ function by right-clicking our ‘Stalls’ layer and selecting ‘Continue’ from the list.
This has created a new Quad, using the ‘End’ coordinates from the ‘Stalls’ layer we created as our new ‘Start’ coordinates.
Rename this from ‘Continue of Stalls’ to ‘Back Wall’.
We’ll enter our next measurement as the End ‘Range’ and ‘Angle’, taken from the top of the back wall.
32.69m, at +11.83°
Click the green ‘tick’ to save our entry.
26.2m, at +15.7°
26.9m, at +21.55°
42m, at +18.2°
Each time, the ‘End’ coordinate is edited after using ‘Continue’ from the previous layer.
Give an appropriate name to the new layers created.
Let’s tweak the balcony we have created.
The balcony measures 33m in width at the front, closest to the stage, and 43m in width at the back. Adjust the Start and End ‘Width’ for the balcony layer, and for the balcony front and stalls ceiling created.
Finally, let’s tag the back wall, stalls ceiling and balcony front as Scenery using the Source Properties List.
We’ll also tag the ceiling and balcony front as an Obstacle.
Designing a Loudspeaker System
Let’s set our position to: X = 8m, Y = 0m, Z = 11m.
We can then use the Hang Design table to choose an FR-AR Frame with an EXBAR to the rear.
We’ll add loudspeakers to the array in the following order:
10x AiRAY (90°, 2-way)
1x ViRAY (120°, 1-way) with VR-AR-Link
3x ViRAY (120°, 1-way)
Clicking ‘Auto Link’ will link our speakers in pairs.
Change the arrangement to stereo and the HSA’s origin to: X = 8, Y = 0, Z = 0.
Add another SCP to the stack using the green ‘plus’ button in the Stack Layout table.
Try muting and unmuting individual sources to see their complex summation.
Let’s align our Main Hangs to our Subs using Microphones.
Unmute only the left Main Hang, and the left Subs.
A cancellation can be observed around 50Hz.
Add delay to the subs to align them. Watch the comb filter move as the delay is adjusted. The sources are aligned when summation is best.
In this case, 4ms has been added.