Grass Valley AMX-3981 2014 - Manual (Page 102)

GUIDE TO INSTALLATION AND OPERATION
96 | AMX-3981
Zero Zone Above
The Zero Zone Above parameter makes it possible to keep some long-term dynamics above the target, normally
reduced or eliminated by the leveler, in the processed signals. With the Zero Zone Above, all input signals with a
loudness above the target but less than (Target Loudness + Zero Zone Above) will be left untouched by the leveler.
Only signals with a loudness above the Zero Zone Above will be attenuated.
Zero Zone Below
The Zero Zone Below parameter makes it possible to keep
some long-term dynamics below the target, normally reduced
or eliminated by the leveler, in the processed signals. With the
Zero Zone Below, all input signals with a loudness below the
target but greater than (Target Loudness + Zero Zone Below)
will be left untouched by the leveler. Only signals with a
loudness below the Zero Zone Below will be amplified.
Max gain
To avoid unwanted signal amplification, the AGC amplification
is limited to the adjustable Max Gain (dB-value).
Freeze Level
Freeze Level makes it possible to avoid undesired leveling
during signal breaks and overshoots following signal attacks.
If the input signal level goes down and reaches the Freeze
Level, all the states of the AGC (leveler) and transient
processor will be frozen and kept unchanged until the input
signal level rises again.
Silent Level
For signal levels below the Silent Level, the gain of the transient processor goes to 0 dB to prevent an amplification of
the noise floor. It is similar to the “Noise Gate” threshold used in state-of-the-art dynamic range processors.
6.6.4.3 Transient Processor
The transient processor should prevent “transients” in audio signals, like the attack phase of musical sound or spoken
word. The transient processor is mainly full automatically controlled by internal Level Magic logic. However, the user
can adjust some parameters that affect the behavior of Transient processor.
Max Gain
To avoid unwanted signal amplification the transient processor
amplification is limited to the adjustable Max Gain. It ranges from 0
to 20 dB, in dB steps.
Response
Sets the response (grip) of the transient processor to: Soft, Mid,
Hard.
6.6.4.4 Limiter
Max Peak Level
The Max Peak Level defines the absolute maximum range to which
the audio is limited to. It ranges from the target loudness to 0 dBFS.
Processing
Sets the program type for the limiter processing:
• Live, Speech, Pop, Uni, Classic