Troubleshooting guide

Creating a Configuration
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P4800 System Processor Software Guide Page 16 of 108
CREATING A CONFIGURATION ____________________________
A configuration is a unique combination of signal routing connections, the selection and placement of modular
processors, and processor settings. You create the configuration in the signal flow diagram of the main window,
and save it either as a preset in the device, a scene file on the computer, or both. The System Processor
initially is loaded simply with a blank preset, meaning there are no signal routing connections in the device, and
no signal processing taking place.
Signal Flow Configuration
In order to pass audio through the device, you must route signal from the inputs to the outputs by connecting
mix points. This section explains the basics of signal flow design in the System Processor user interface.
Gain Structure
The System Processor provides gain control at three stages of the signal flow: input gain, matrix mixer,
and output gain. It is essential to obtain an understanding of this gain structure before passing audio
through the unit, in order to avoid damaging equipment that is in line after the System Processor with
excessive gain levels. The following illustration provides an overview of the P4800 gain structure.
Input Gain
Double-clicking on any input gain block will open the Input Gain processor window, which displays
controls for all four channels. It acts as a pre-processing trim; providing scaling, gain and polarity control
for each channel, and allows you to designate custom names for your input channel strips.
Note: Signal levels exceeding the input threshold of the System Processor must be
adjusted externally to prevent clipping at the A/D converters.
This is a signal’s point of entry to the signal flow diagram. After the input gain processor, the signal
passes sequentially through the processor slots on its input channel strip. At the end of the channel
strip, the signal arrives at a mix point, where it can be routed to any or all outputs via the matrix mixer.
Figure 10 − P4800 Gain Structure
A
djusts signal gain after i
t
is digitally converted and
before it's processed on
the input channel strip.
Routes the signal from inpu
t
to output, and adjusts signal
gain before output channel
processing.
Final gain adjustment o
f
processed digital signal
before analog conversion
at device output.