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7800/7700 MultiFrame Manual
7812UDXD Series 3G/HD Up/Down/Cross Converter with Simultaneous Dual Format Outputs and AES I/O
6.50.5. Program x Peak Limiter
6.50.5.1. Peak Limit
The Peak Limit is used within the audio program chain to provide an upper limit to peak program levels.
Sometimes referred to as a "brick-wall" limiter. This control is used to maintain the upper limit of the peak
levels. The peak limit control has a range from -15 dBFs to 1 dBFs.
6.50.6. Program x Intelligain Threshold (1, 2, 3)
6.50.6.1. Gain Level Threshold (1, 2, 3)
The Gain Level Threshold control is used for real time monitoring and SNMP trap alarming. By defining
the output level, the IntelliGain system will send an SNMP alarm to VistaLINK
if the output loudness
®
level exceeds the defined output level. For example, by setting this control to –18 dBFs, if the calculated
output loudness level exceeds –18 dBFS (for the specified fault duration) then an alarm will be sent to
VistaLINK
for immediate operator notification. There are 3 levels of alarm thresholds. These can be
®
setup as minor, major and critical alarming thresholds. The Gain Level Threshold has a range of -65
dBFs to -1 dBFs.
6.50.6.2. Fault Duration
The Fault Duration control defines the amount of time that the IntelliGain system detects the output
level has been exceeded. For example, if this control is set to 25 seconds, it means that the output level
has to be exceeded for a minimum of 25 seconds before an SNMP trap alarm is sent to VistaLINK
. The
®
Fault Duration has a range of 0.5 sec to 240 seconds.
6.50.6.3. Clear Duration Control
The Clear Duration defines the amount of time that the IntelliGain system must be corrected to before
a correction SNMP trap is sent to VistaLINK
. For example, if this control is set to 10 seconds, it means
®
that the IntelliGain output level fault must be corrected for a minimum of 10 seconds before a correction
alarm is sent to VistaLINK
. This control is primarily used to smooth out alarming for audio with a very
®
wide dynamic range. The Clear Duration has a range of 0.5 sec to 240 seconds.
6.50.7. Program x Monitor
6.50.7.1. Input Loudness Monitor
The Input Loudness control will provide a real time value of the calculated input loudness value. This
control is used for monitoring purposes only.
6.50.7.2. Gain Applied Monitor
The Gain Applied control will provide a real time value indicating the amount of gain being applied by the
IntelliGain system. Values can be either negative, indicating a gain reduction, or positive, indicating gain
is being applied.
6.50.7.3. Output Loudness Monitor
The Output Loudness control will provide a real time value of the calculated output loudness value. This
control is used for monitoring purposes only. It is used to provide confidence monitoring.
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Revision 1.1.1
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