V1.22
Owners Manual SP20-Linex™
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4
Using Sound Projects Array Calculator (SPArC™)
To determine the optimum angle settings of the array elements, array position, expected SPL
levels and other array configuration parameters SOUND PROJECTS has developed SPArC™; a
pragmatic array calculation tool.
Based on the venue parameters SPArC™ instantly calculates the most favourable line-array
configuration and processor pre-set. The most important configuration rules are listed in the next
paragraphs. It is strongly recommended to read them carefully before use.
4.1
General overview
SPArC™ is a Microsoft Excel based program, therefore Microsoft Excel needs to be installed on
the workstation on which SPArC™ is used. SPArC™ uses several Visual Basic based program
structures, therefore the macro use in excel must be enabled. Furthermore, be careful no to alter
any cells that are not intended to be altered by the user; otherwise the program might not
function correctly.
The use of SPArC™ is concentrated into two work-maps, the
project info
page and the
main
interface
page, they can be selected at the bottom of the excel sheet. The venue specific
parameters can be entered at the
project info
page, whereas array parameters are automatically
calculated or can be optimized at the
main interface
page.
MS Excel’s automatic calculation setting and the macro use must be enabled!
You can find these settings in menus: extra>options>calculation and
extra>macros>security.
