Troubleshooting guide

Modular Processors
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P4800 System Processor Software Guide Page 40 of 108
MODULAR PROCESSORS _________________________________
This section describes the features and controls specific to each of the processor block parameter windows. In
some cases, several processor blocks share nearly identical controls, such as the downward expander and
gate. In these instances, the processors are described as a group, using a single parameter window as the
illustrated example. Control settings that are individual to one of the processors in the group are so noted in the
description of those controls.
Automatic Gain Control/Leveler (AGC)
The AGC/Leveler creates a more consistent volume level for program material that tends to fade and swell. It
acts as a combination upward expander and compressor, increasing the gain of the input signal when the level
is too low, and reducing it when the level is too high.
Block Name Description
§ AGC Automatic Gain Control
Function
Use the leveler in situations where it is desirable to maintain a constant volume level, such as for
podium and lectern microphones where the speaker's proximity to the microphone varies. The leveler
compensates for quiet levels by gradually raising the gain. If the speaker then talks loudly into the
microphone, the AGC will gradually reduce the gain.
Parameter Window Features
This section describes the features and parameter controls specific to the Automatic Gain Control
processor, as pictured above in figure 31.
Figure 31 − AGC Window