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3°) Put the historical filter in weighted A.
Attention : In many cases, line setting procedure can not carry out the automatic configuration of system.
a ) Broadcasting system allows a acoustic pressure level too much important. In this case, maxi output fading (32 dB)
doesn't allow to get a functionning area. The procedure is given up, and the message above displays:
To allow the setting, you must limit the boadcasting system power in decreasing amplis. (In this case, amplification system
must be leaded).
b ) The procedure leads correctly, but the acoustic pressure level obtained is very different in desired level. In this case, the
right acoustic on pink noise is that it amplifies or fades the measured signal by tne sensor. The control level can not be
computed automaticaly, and the configuration must carry out manually.
NB : in some cases , the sensor movement can resolve the problem.
Day / Night switching time setting.
Day / Night switching time setting does not work.
In this mode,
Attack and release time setting.
To get the best performance it is necessary to set attack and release time of device, according to the musical program content.
The most important factor is the signal dynamics. One can consider two types of music :
- Music with low dynamics usually recorded music
- Music with heavy dynamics associated to live music
According to these two main families, the attack and release times can be set as following :
1° )
Low dynamics :
- Fast attack time.
- Release time longer than attack time to avoid pumping.
Example : Attack time = 1seconde
Release time = 2 or 3 secondes
These musics having an important average density, the regulator must act rapidly, otherwise it will not regulate enough,
and the average level could excess the instruction level.
Remark : The attack time can be set to suit the events embedded in the music (i.e. Tempo)...)
2° )
Heavy dynamics:
In this case of "Live" music, the average density can be thought as relatively low, because the music mainly consist of low
or middle level of sound events, with short high levels. To respect the dynamics, attack time will be long enough to preserve
attacks. Release time can be faster than attack time, allowing the regulator to come back to initial state (0dB when the level
decreases).
Example : Attack = 4 secondes
Release = 2 secondes
AMIX
FUNCTIONING MODE: MODE 2 (next)
DROP OUT SETTING !!"
"Att. Max = 32 dB
32
SNA 50-2
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