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Setting the levels associated to the threshold for regulation in global level
This threshold is the maximum allowed level, at the location where the audience is the more exposed. Under certain
circumstances, this place is the same as the one from the impact study. The level is found in the acoustician's report
Select the page
to
Leq level settings
Enter Leq
1
level value
using of numerical
keyboard
(Level Leq between
64 and128 dB)
In this mode, set 4 levels in the same value (night levels and no actives window).
Line setting :
In line mode, the relation between acoustic level and power level associated (dBspL, dBu) must be determined to allow an
optimal system. In fact, the conversion power supply/acoustic power is carried out by broadcasting system (ampli + speaker).
For a same power level, the acoustic pressure is more or less important according to broadcasting system used.
To allow system to fitting, two parameters must be configurated: line level and output level. SNA 50-2 includes a line setting
procedure allowing to established all parameters. This procedure allows to carry out a basic setting which must be improved for
an optimum functioning of regulator.
1°) Put the historical filter in the same positon that regulation. (see page7 ).
2°) Setting procedure
Select the page to
line settings
"Max ampli
and validate!!"
AMIX
FUNCTIONING MODE: MODE 2 (next)
PAGE
Select the parmeter
2
Validate
Leq value
Leq value
not valid
PAGE
Start the function
4
"Line setting"
Turn the sound of
amplis (amplis max) .
Applicate a pink noise in
display input.Regulate the
sound toget 0 dB on
Vumeter
(or -6dBFs for
a digital display)
1
2
2
to modify
1
3
4
another parameter
of page 2
ENTER
Leave page 2
ESCAPE
6
line setting"
ENTER
"Att. Max = 32 dB
DROP OUT SETTING
31
Leq day 1.
Leq day 2 (Leq day window).
Leq night 1.
Leq night 2 (Leq night window).
Modify
ESCAPE
ESCAPE
"Executed
ESCAPE
Modify the power of
broadcasting sytem
(turn the amplis) and
start again the function
.
ESCAPE
ESCAPE
SNA 50-2
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