Meyer Sound Galileo GALAXY 408, User Manual

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APPENDIX D: LOW-MID BEAM CONTROL
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Under the Low-Mid Beam Control tab, there are a number of settings the user can control:
Array Name
Each line array being driven by this processor can be named for quick identification by clicking in the Array Name widget
and entering the appropriate text.
Status
This button lets a user Enable or Bypass LMBC processing for all affected channels.
Control Type
Under Control Type, the user can select one of two coverage patterns: Beam Spread, or Steer Up. Beam spread will widen
the low-mid frequency coverage. Steer Up will steer low-mid frequency upward. The appropriate Control Type should be
determined in MAPP prediction software.
Elements Per Output
This control lets the user select whether a single processor output will drive one or two line array elements. Use one element
per output for best performance.
Start On Output
This selection determines which Output Channel will be used as the first output channel of LMBC. Element number one
always starts at the top of the array.
Number of Elements
This widget allows the user to define the number of elements within the array.
Element Location
This widget determines the element's relative position in the array. Use of this tool is necessary when LMBC processing is
spread across multiple processors. For example, consider a 24-element array where each element receives a discrete
LMBC filter. Two GALAXY processors are required (GALAXY A and GALAXY B). If elements 1-16 are driven by Output
Channels 1-16 on GALAXY A, the Element Location for GALAXY B would be 17. Both processors 'Start On Output' value
would be set to Output 1.
Product Type
The Product Type widget allows a user to enter the line array product being driven.
Array Splay
This widget allows the user to enter the summed total of the splay angles within the array. To calculate Array Splay using the
MAPP System Design Tool:
1. Determine the correct value from MAPP’s Array Splay located in the Loudspeaker System Properties Dialog Box.
2. Enter the result from the Compass or Compass Go Array Splay column.