Using Survey - Martin Audio MLA User Manual

Multi-cellular loudspeaker array
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MLA System
USER GUIDE
window to allow the maximum detail to be visible. Finally you can uncheck the Show Coordinates button which removes the
numbering from all nodes.
As mentioned, there is no need whatsoever to enter the nodes accurately when first drawing the slice, it is time consuming,
particularly on a small screen, and inaccurate. Instead, you can edit all points shown on the top left list of nodes;-
Click on the x coordinate for node 1, in most cases this is likely to be 0.00 but if not type the correct value and hit the Tab key.
The z coordinate for the node 1 is highlighted and you can type the correct value. Tab again and the x figure for node 2 is
highlighted and so on. You will get very quick at tabbing through all the coordinates entering the correct values to give you a
perfectly accurate 2D slice drawing. This obviously is a far quicker method of working.

Using Survey

The process of drawing a shell as described above is fine particularly if you have architects drawings of a venue and are able to
create a Display 2.1 project in advance of arriving on site, but in a touring situation this luxury is rarely available and therefore
you may need to measure the venue when you get to site. The best method is to use a laser measure such as the Leica Disto
D510 which is supplied as part of full MLA and MLA Compact systems and is available from Martin Audio as an optional accessory.
The Distos have been in widespread use for accurately measuring venues for line array software so most technicians are familiar
with their operation and accuracy. The D510 is one of the most advanced models and has a host of functions to make getting an
accurate interpretation of the venue as quick and easy as possible.
Display 2.1 Mini allows entry of points using a Survey method instead of entering points as distances on the x and y axis which
may be impossible or at least very difficult to measure on site. Survey allows you to enter the distance to a specific point and the
angle from where you are taking the measurement. This means that you can stand say directly under where the array points are
and measure from there to all of the nodes in the venue taking note of the distance and angle which the Disto can display by
selecting the angle display option. (See the guide supplied with the D510 for more details).
To enter the measurements you first need to enter an approximate 2D slice with the correct number of nodes as described
above. Now click in the Enable Survey check box. By default leave the Snap to Points box checked. You will notice that the points
list has now changed to Distance and Angle for each node;-
MLA System User Guide V2.1
166

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