Live Mode ...............................................................................................................................................7
CREATING A CONFIGURATION.............................................................16
Signal Flow Configuration........................................................................................... 16
Gain Structure....................................................................................................................................... 16
Labeling Inputs and Outputs................................................................................................................. 17
Signal Routing ......................................................................................................................................18
Naming a Preset or Scene File............................................................................................................. 19
Store a Preset in the Device.................................................................................................................28
Rename a Preset .................................................................................................................................. 29
Delete a Preset .....................................................................................................................................29
Adjusting the Level ...............................................................................................................................31
Value Box .............................................................................................................................................31
Hold Mode ............................................................................................................................................58
Welcome to the Shure P4800 System Processor software guide. This document will help you understand how
the P4800 functions as you learn to use the software interface. The hardware stands alone as both a front-end
and back-end system processor that can be externally controlled by a simple end-user interface. The software
is the tool that configures the device's internal signal routing and audio processing. It is designed for small and
medium sized sound systems that need the power and flexibility that a digital signal processor can provide, but
also require a unit that's easy for the installer to configure and simple for the end user to work with.
Document Structure
The P4800 software interface is so intuitive and user friendly that you may be tempted to skip reading this
document and immediately begin programming the unit. Before you do, however, you should at least skim this
overview, then thoroughly read the Start-Up Guide on page 12. Any questions you have about the software will
be answered in the following sections of the document.
§
Overview ................................... Introduces the main features of the System Processor, and
discusses the operating modes of the interface and the main window.
§ Start-Up Guide.......................... Covers the basic steps you need to follow with the
software to set up the System Processor for an installation.
§ Creating a Configuration......... Covers the elements of a System Processor signal flow
configuration, such as the gain structure of the device, routing signal from inputs to outputs,
adding processors to the signal path, and working with them in the main window.
§
Saving a Configuration............ Explains how to save a configuration to the computer, store
it as a preset in the P4800, and backup the contents of the device to computer.
§ Processor Features .................Covers the features that are common among many of the
signal processor modules, such as fader controls, taking snapshots of parameter settings, and
saving and recalling settings to and from the computer.
§ Fixed Processors ..................... Explains the features of the input and output gain
processors and the Matrix Mixer.
§ Modular Processors ................ Explains the features specific to each of the modular
signal processors.
§ Control Pins.............................. Describes the internal architecture of the System
Processor's external device control feature and explains how to configure the P4800's
control pins with the software once the external hardware has been connected.
§ Security ..................................... Covers the security features of the System Processor
that restrict user access to device settings.
System Processor Features
The P4800 is a 4-input, 8-output digital audio processor with a software interface that completely replaces front
panel controls. It provides 24-bit conversion, 48khz sampling and a minimum dynamic range of 100dB.
SoundPlex digital signal processing ensures high performance and system stability. The device stores from 16
up to 128 user-defined presets, depending on the complexity of the configurations.
Drag and Drop Software Interface
The computer interface to the System Processor mimics the functional block diagrams used in sound
system design. This makes the software incredibly easy to learn, because the interface seems
immediately familiar to sound professionals. System configurations can be built and edited entirely by
clicking, dragging, and dropping with the mouse. The digital signal processing is highly configurable,
with modular signal processors that can be arranged in any user-defined order.
SHURE P4800 System Processor Software Guide Page 5 of 108
Overview
Modular Signal Processors
Each signal processing module is encapsulated in a graphic block that you can manipulate with the
mouse. You can access the processor settings by double-clicking on the block to open its parameter
window. Settings can be saved and recalled from the computer, and copied between similar modules.
Processor settings can also be synchronized via the link feature. The P4800 includes the following
selection of signal processor modules.
§ Shure's Powerful Digital Feedback Reducer § Gate/Expander
§ Automatic Gain Control and Leveler
§ Combining and Non-Combining 10 and 30-Band
Graphic Equalizers
§ 3 to 10-Band Parametric Equalizers with Cut
and Shelf Filters
§ 2 to 5 Way Crossovers and Splitter
§ Mono and Stereo Compressor/Limiter with Soft-
Knee Option
§ Ducker
§ Peak Stop Limiter
External Device Control
After it is installed and programmed with the software interface, the System Processor can be controlled
with a simple hardware interface, as well as with a computer or MIDI device. The control pins on the rear
panel can be connected to external hardware, so that the P4800 will respond to contact closures,
potentiometers, and wall-plate switches. The output pins can be configured to indicate preset and mute
status to LED's, control relays, or other equipment.
Security
The security feature gives the installer peace of mind that the device cannot be tampered with after it is
installed. User access can be completely restricted so that the user cannot change any settings, or even
switch presets. They will only be able to view the settings of the current preset from the software interface.
End-user control can also be customized to allow access to certain settings, and not to others.
P4800 Software Minimum Requirements
The P4800 Software Version 4 requires a PC with the following specifications to function properly:
§ 20 MB available hard disk space
§ CD-ROM drive
§ VGA monitor with 640 x 480/256 color, or higher resolution
§ Mouse or other pointing device
Processor speed and memory requirements vary, depending on the version of Windows and number
of background applications you are running. Operating the P4800 software simultaneously with
programs such as SIA-Smaart or Gold Line TEF™ requires a faster processor and more RAM. The
following table lists the minimum requirements for running the P4800 software with no other
applications in the background, including virus protection, firewall, instant messaging, or email.
Windows Version Processor Speed RAM
95, 95B, and 98 Pentium 166 MHz 32 MB
98, Second Edition Pentium 166 MHz 48 MB
NT Pentium 233 MHz 64 MB
ME Pentium 300 MHz 64 MB
2000 Professional Pentium 300 MHz 96 MB
XP Professional, Home Pentium 300 MHz 128 MB
SHURE P4800 System Processor Software Guide Page 6 of 108
Overview
Interface Modes
The Interface features two primary modes of operation: Design Mode and Live Mode. This provides you with the
option of creating configurations for the System Processor regardless of whether or not the computer is connected to
the device. There are certain functions that are specific to each mode, which are explained throughout the manual.
Design Mode
When you launch the application, you always begin in Design Mode. This is the mode you use to
create presets that are later stored in the System Processor. In this mode, it is not necessary for the
computer to be connected to the device. You can save the signal flow configurations you create to
scene files on the computer, which may later be recalled and sent to the device through the RS-232
connection. This provides you with the capability to design presets in a location other than where the
equipment is installed. Scene files are analogous to presets in every aspect, except that they are
stored on the computer rather than in the device.
Live Mode
This mode allows you to make real-time adjustments to hardware presets while the computer is
connected to the System Processor. This provides you with the means to instantly hear changes to
signal processing as you alter settings, so you can easily refine your presets on site. Everything you do
in Live Mode is written directly to the current live preset.
Preview Mode
When working in Live Mode with a device that contains multiple presets, you may recall them
individually for real-time modification. When you select a preset to load into the signal flow diagram,
the window enters preview mode to give you the opportunity to verify your selection before you
designate it as the next live preset. The interface returns to Live Mode when you load the preset, or
cancel the operation.
SHURE P4800 System Processor Software Guide Page 7 of 108
Overview
Main Window
This window, shown below in figure 1, is your primary workspace in the software interface. You can size it
proportionally larger, or maximize it to take up your entire screen. Closing this window exits the application.
Figure 1 − Main Window
1. Title Bar
The information on the title bar of this window changes depending upon the operating mode. In
Design Mode the title bar reads, “P4800: Offline,” and indicates the default security level. In Live
Mode, it displays information specific to the unit to which you are connected, as illustrated below in
figure 2.
Figure 2 −Title Bar in Live Mode
The device ID number is specified by setting the DIP switches on the back of the device; and both
the device name and security level are specified from the [Device] menu when you are in Live Mode.
2. Main Menu
Some menu options are mode-specific, and are grayed out depending on which mode you are
currently working in. Contextual menus are also available by clicking the right mouse button when
your cursor is positioned in the signal flow diagram (number eleven below).
SHURE P4800 System Processor Software Guide Page 8 of 108
Overview
3. Control Bar
This section of the window changes in appearance and function depending upon the operating
mode. When you are in Live Mode the control bar emulates the LED meters on the front panel of
the hardware, as pictured below in figure 3.
Figure 3 −Control Bar in Live Mode
The meters can be toggled on and off by clicking on them with the left mouse button, or by
selecting [View > Enable I/O Meters] from the main menu.
Figure 4 − Control Bar in Preview Mode
In preview mode, as pictured above in figure 4, the control bar provides you with the choice of loading
the preset you have selected, or canceling the operation and returning to the previous live preset.
4. Live Mode Switch
Click this button to switch to Live Mode, which enables you to preview and edit any preset currently
stored in the hardware. Your computer must be connected to the P4800 to enter this mode.
5. Design Mode Switch
Click this button to switch to Design Mode. The preset you were working with in Live Mode
remains loaded in the signal flow diagram, which allows you to use the current preset as a basic
template, creating multiple presets by repeatedly storing it to the device.
6. Information Box
This displays details about the preset or scene file that is currently loaded on the screen, including
name, date last saved, and description. In Live Mode, a pull-down menu appears in the name
field, which lists all presets stored in the device (see Figure 3. – Control Bar in Live Mode).
7. Store Preset
This button is available only in Design Mode. Click to store the current signal flow diagram settings
as a hardware preset in the System Processor.
8. Recall Preset
This button is available only in Design Mode. Click to load a preset from the System Processor
into the signal flow diagram.
9. Save As
Click this button to save the current signal flow configuration and settings to a scene file.
10. Open
This button is available only in Design Mode. Click to load the contents of a scene file into the signal
flow diagram.
SHURE P4800 System Processor Software Guide Page 9 of 108
Overview
11. Signal Flow Diagram
The signal flow diagram depicts how audio signals pass through the various processors in the
hardware. It shows audio signal flow as moving from left to right along the input and output
channel strips. Each channel strip contains fixed components for adjusting gain and mixing
channels. They also contain a series of empty slots for adding different types of processing.
12. Input Channel Strip
The input channel strips correspond to the four input channels of the System Processor. Each strip
accommodates up to five different signal processors.
13. Input Channel Label
This displays the channel label that you specify in the Input Gain window.
14. Input Gain
This is the initial stage of the System Processor’s gain structure. Double-clicking this block opens
the Input Gain window, which provides you with –10dBV/+4dBu scaling options, channel mute,
polarity control, and a +/–30dB fader for each input channel. This is also where you name your
input channels.
15. Mode Indicator
This displays the current mode of the signal flow diagram, as illustrated below.
Design Mode Live Mode Preview Mode
16. Input Selector
Click on these numbered input selectors at the mix point of each output strip to connect
automatically with the corresponding input channel mix point.
17. Matrix Mixer
This is the intermediate stage of the System Processor’s gain structure. Double-clicking this block
opens the Matrix Mixer window, where you can route signal from any input channel strip to any output
channel strip, and adjust relative levels with fader controls. This window has a separate tab for each
output channel strip that displays gain, polarity, and mute controls for every input channel connected to
its mix point.
18. Channel Numbers
These numbers correspond to each of the four input and eight output channels of the P4800.
19. Mix Points
Click on these points to route signal between input strips and output strips. Lines appear between
points that are connected, depicting the signal flow. Each input strip may be connected to any or
all output strips.
20. Processor Slots
These slots serve as containers for processor modules. They can be populated either by using the
drag and drop method from the Processor Toolbox, the [Add Processor] option on the main menu,
or the contextual menu available with a click of the right mouse button.
SHURE P4800 System Processor Software Guide Page 10 of 108
Overview
21. Output Gain
Double-clicking this block opens the Output Gain window, which provides you with -10dBV/+4dBu
scaling options, channel mute, polarity control, a –20dB pad, and a +/-30dB fader for each output
channel. This is the final stage of the System Processor’s gain structure. This is also where you can
designate a custom name for your output channel that pertains to your particular setup.
22. Output Channel Label
This displays the channel label designated in the Output Gain window.
23. Output Strip
The output channel strips correspond to the eight output channels of the System Processor. Each
strip accommodates up to six different signal processors.
24. Mute All Inputs
Click this control to automatically mute all input channels.
25. Mute All Outputs
Click this control to automatically mute all output channels.
26. DSP Usage Meter
This indicates the percentage of the P4800's digital signal processing resources that is taken up
by the current configuration of processor blocks that you have placed in the signal flow diagram.
The meter displays a green bar that expands as usage increases.
27. Delay Memory Meter
This indicates the percentage of delay memory that is taken up by the delay processors you have
placed in the signal flow diagram. The meter displays a blue bar that expands as usage increases.
The Processor Toolbox
The Processor Toolbox appears next to the main window when you launch the application, as shown in figure 5.
This window displays the library of processor modules that you can drag and drop onto empty slots in the signal
flow diagram. It can be resized vertically by dragging the top or bottom edge up or down. A scroll bar appears on
the right-hand side so you can access every processor block, regardless of the height of the window.
Showing and Hiding
The Processor Toolbox window appears in front of the main window. You can close
it by clicking on the [X] in the right-hand corner of the title bar, or by going to the
main menu and selecting [View > Show Processor
Toolbox]. To re-open the Processor Toolbox window,
select [View > Show Processor Toolbox] again. A check
mark appears next to the menu option when the Processor
Toolbox window is open.
Drop-Down Buttons
A drop-down button appears over each processor category in the Processor Toolbox.
Click on a drop-down button to show or hide all processor blocks within that
category.
Drop Down Button
Processor Blocks
>
>
Processor Blocks
Processor blocks are the graphical representation of processor modules.
After you place them on the signal flow diagram, you can access settings
by double-clicking on each block to open its parameter window. The percentage of digital signal processing
resources that each processor module uses is displayed to the right of each block in the processor toolbox.
SHURE P4800 System Processor Software Guide Page 11 of 108
The start-up guide covers the basic steps required for complete set up of the System Processor. Before
attempting to follow these instructions, you should familiarize yourself with the Overview section, which
introduces some basic features of the software interface.
You can perform many of these steps without actually being connected to the device, by saving your configurations
to the computer and transferring them to the hardware at a later time. In order to acquaint you fully with the features
of the System Processor, these instructions are written presuming the following conditions:
§ You are working while connected to the device.
§ The installation includes external device control.
§ Device security is required.
You may find steps in the instructions that do not apply to your immediate installation. However, we suggest
that you follow along through the entire Start-Up Guide, in order to acquaint yourself with the recommended
workflow of setting up the device, for future reference.
Install Software
If you have not already installed the software, follow these instructions to install the application
from the CD-ROM.
To install the software from the CD-ROM:
1. Insert the CD into the CD-ROM drive of your computer.
2. The installation program will start automatically. Follow the on-screen instructions.
If installation does not begin automatically:
3. Click on the [Start] button on the Windows Taskbar and select [Run…]
from the pop-up menu
4. Type "D:\setup" (where "D" is your CD-ROM drive).The installation program will start
automatically. Follow the on-screen instructions.
5. Click [OK] and follow the instructions of the installation program.
If you have downloaded a copy of the software, locate the ".exe" file in the Windows Explorer
and open it. Follow the instructions of the installation program.
Establish Communication
This is the procedure to use when you initially connect the computer to the device. It is your first
opportunity to verify that your computer and the P4800 are communicating properly. For more
information on connecting your computer to the device and setting the device ID, see the Computer Connections section of the Hardware Installation Guide.
1. Connect the computer to the System Processor
Connect your computer's COM port to the RS-232 serial port on the front or rear panel of the P4800.
2. Launch the software application
3. Select the COM Port
a) Select [Devices>Select COM Port] from the main menu
b) The Select COM Port dialog opens, as pictured in figure 6
on the right.
c) Choose the COM port that the RS-232 cable is connected
to and click [OK].
Figure 6 − Select COM Port Dialog
SHURE P4800 System Processor Software Guide Page 12 of 108
4. Go Live with the System Processor
a) Click the [Live Mode] button on the control bar of the main
window
.
b) The Select Devices dialog opens, listing all available devices, as
pictured in figure 7 on the right. The ID number indicated on the
left side of the list is set with DIP switches on the back of the
device.
c) Select the System Processor unit you will be working with and
click [Connect].
d) The software interface enters Live Mode, indicated by the blue
color of the signal flow diagram and the signal meters displayed
on the control bar.
5. Name the Device
a) Select [Devices>Name Device] from the main menu.
b) The Name Devices dialog appears, as pictured in figure 8
on the right.
c) Enter a device name, up to fifteen characters long and
click [Name].
d) The device name appears on the title bar of the main
window when you are in Live Mode, and is listed in the
[Devices] menu.
Start-Up Guide
Figure 7 − Select Devices Dialog
Figure 8 − Name Device Dialog
Configure External Control
If there are external devices connected to the control pins, you need to configure the device to
recognize the external controllers. This configuration is stored at the device level and should be
established before you create any presets. If you are not connected to the device, you can create a
configuration and save it on the computer to be later transferred to the P4800 through the RS-232
connection. Refer to the Control Pins section on page 76 for complete instructions.
1. Enter Design Mode
You must be in Design Mode to configure external control. If you are in Live Mode, click the [Design
Mode] button on the control bar of the main window.
2. Configure Control Pins
Select [Devices>Control Pin Configuration] from the main menu, which opens the Control Pins window.
Start by selecting how many presets you will be switching between, and the type of encoding the device
will use for the preset numbers, then specify the other control connections.
3. Save the Configuration to the Device or to PC
Select the [Configuration>Store to Device] or [Configuration>Save to PC] menu option.
Note: If you need to switch presets from the computer after you have configured the
control input connections, you must disable the connections in the Control Pins
window before proceeding further.
SHURE P4800 System Processor Software Guide Page 13 of 108
Create a Signal Flow Template
This can be done in either Live Mode or Design Mode. When you are storing multiple presets in the System
Processor, you will save considerable time by creating a signal flow template that contains the attributes
that will be common among them. This template can then be recalled from the device or opened from a
scene file on PC, revised as necessary, then stored in the device each time as a new preset.
1. Name Input and Output Channels
Double-click on the input and output gain blocks to open the processor parameter windows, and edit the
channel labels that appear underneath the gain controls. For more information, refer to the Labeling
Inputs and Outputs section on page 17.
2. Populate the Signal Flow Diagram
Drag and drop signal processor blocks from the Processor Toolbox onto the signal flow diagram. If you
are using crossovers, they should be the first type of processor that you place in the configuration,
followed by limiters, in order to prevent loudspeaker damage. For more information, refer to the Adding
Processors section on page 20.
3. Create Link Groups
CTRL+Click to select multiple processors of the same type that you would like to control as a group, for
stereo pairs, loudspeaker clusters, zones, etc. You can also link gain blocks in order to control overall
system level. For more information, refer to the Linking section on page 25.
Start-Up Guide
4. Trim Output Levels
Double-click on the output gain blocks to open the Output Gain window. Reduce the output gain of each
channel by –30dB to prevent loud signal from passing through the system. If output channels are linked,
you need to adjust only one fader to change all linked channels to the same level.
5. Route Signal from Inputs to Outputs
Click and drag from input strip connection points to output strip connection points to route the signal through
the Matrix Mixer. For more information, refer to the Signal Routingsection on page 18.
6. Adjust Processor Settings
Double-click on each processor block to open its parameter window. If you are working off-line in
Design Mode, you can set preliminary levels and tweak them later when you are connected to the
device. For more information on working with processors, refer to the Processor Features section on
page 31, as well as the reference section for each processor.
7. Map Processors to Control Connections
Each preset must contain a map to the control pin connections for the hardware to recognize the
external devices when the preset is active. Open the Control Pin window and select the checkboxes
next to the input and output channels that each control connection will address. For more information,
refer to the Control Pins section on page 76.
8. Lock Processors for Read-Only Access
This step is applicable only when you are customizing security for the end user. This type of security is
stored with each processor, at the preset level. Select the processors that the user should not be able to
modify, and select [Security>Level 2>Lock Selected] from the main menu. For a complete explanation
and further instructions, refer to the Individual Processor Security section on page 87.
SHURE P4800 System Processor Software Guide Page 14 of 108
Start-Up Guide
g
9. Name the Preset
Click once with the left mouse button anywhere in the
information box in the center of the control bar to open the
Preset Information dialog, as pictured on the right in figure
9. Enter a name for the preset, up to 15 characters long,
and a description, then click [OK]. For more information,
refer to the
page 19.
Naming a Preset or Scene Filesection on
Figure 9 − Preset Information Dialo
10. Store the Finished Preset in the Device
If you are working in Live Mode, the preset is already stored in the device. If you are working in
Design Mode
information, refer to the Preset Management section on page 28. To duplicate this preset you need to
be in Design Mode. Simply continue to click the [Store Preset] button, creating duplicates until you have
stored as many presets in the device as you require.
, click the [Store Preset] button on the control bar of the main window. For more
11. Enable External Control
Once you are finished creating and editing presets, if you previously disabled control connections
in order to control the System Processor via the computer, open the Control Pins window and reenable them
.
Establish Security
This is the final step in setting up the device. Before continuing, you should thoroughly read the
Security section on page 85. These instructions are intended only as an overview of the process.
1. Go Live with the System Processor.
You must be in Live Mode to set device security. If you are in Design Mode, click the [Live Mode] button
on the control bar of the main window.
2. Set a Password
Select [Security>Set Password] from the main menu, which opens the Create Password dialog. Type in
a password, press T
3. Set the User Access Level
Select [Security>Set Level] from the main menu, which opens the Set Security dialog. Select the
appropriate user access level. Click [OK].
AB, and then type it again to confirm. Click [OK].
SHURE P4800 System Processor Software Guide Page 15 of 108
Creating a Configuration
A
t
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.
djusts signal gain after i
is digitally converted and
before it's processed on
the input channel strip.
Figure 10 − P4800 Gain Structure
Routes the signal from input
to output, and adjusts signal
gain before output channel
processing.
Final gain adjustment of
processed digital signal
before analog conversion
at device output.
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.
SHURE P4800 System Processor Software Guide Page 16 of 108
Creating a Configuration
Matrix Mixer
Once a signal has been routed to the mix point of an output channel strip, it enters the matrix mixer
stage of the gain structure. Double-click on any mix block to open the Matrix Mixer processor window,
which displays a pane for each output channel strip. When crossovers are placed over multiple output
channels, the mixer panes for those channels will combine to reflect that configuration. Use this
window to adjust the polarity and relative levels of all inputs routed to the selected output channel.
After the matrix mixer, the signal passes sequentially through the processor slots on the designated
output strip. At the end of the channel strip, the signal arrives at the output gain block.
Output Gain
This is the final stage of gain control in the System Processor. Double-click on any output gain block to
open the Output Gain processor window. It acts as a post-processing trim; providing scaling, gain,
polarity control, and an optional 20dB pad for each channel. This window also allows you to designate
custom names for your output channel strips. After the output gain processor, the signal passes through
the D/A converter, to the audio output.
Muting Channels
There are several ways to mute the input and output channels of the System Processor. Muted
channels are flagged in the signal flow diagram, as illustrated in the following table.
Gain Block
Inputs 3 & 4
to Matrix Mixer
Output from
Matrix Mixer
Crossover Output
Channels
Muting All Inputs or Outputs
§ Click either the Mute All Inputs or Mute All Outputs control located at the bottom of the
main window.
§ Select either the [Processor>Mute All Inputs] or the [Processor>Mute All Outputs]
menu option.
§ Power off the device to automatically mute all outputs.
Muting Individual Channels
1. Open the Input Gain, Matrix Mixer, or Output Gain window by double-clicking the appropriate gain
or mix block.
2. Click the mute button for the appropriate channel.
3. The block will be flagged with a red "M" to indicate that it is muted.
Labeling Inputs and Outputs
Inputs and outputs are untitled when you create a new scene file, but they are easily changed using the
Input Gain and/or Output Gain windows. Channel labels are saved along with the preset or scene file, so
you can customize label inputs and outputs for every system configuration.
To change a channel label:
1. Double-click on the channel’s gain block.
2. In the processor window, locate the channel’s label box.
3. Click and drag over the text to highlight it.
4. Type in a new label of no more than fifteen characters.
5. Apply the changes by clicking on another control or closing the window.
SHURE P4800 System Processor Software Guide Page 17 of 108
Creating a Configuration
Signal Routing
The System Processor allows you to route signal from each of the four inputs to any or all of the eight
outputs. In order for signal to pass from the input channel strips to the output channel strips, it must be
routed through the Matrix Mixer. You can connect inputs to outputs using any of the methods
described below.
Making Connections in the Signal Flow Diagram
For simple system configurations, the easiest way to connect inputs to outputs is to use the mouse in
the signal flow diagram.
Click on Mix Points
1. Click on an input mix point.
2. The cursor will change to indicate it’s waiting for you to designate an output connection.
3. Click on an output mix point.
Tip! You can use the ESC key to cancel a connection if you change your mind after
you have clicked on an input mix point, before you click on an output mix point.
Click and Drag between Mix Points
1. Click and drag from an input mix point to an output mix point.
2. A connection line will appear along the signal path.
It turns green when the connection is valid.
3. Release the mouse button to make the connection.
Click on Input Selectors
1. Click on an output channel’s numbered input selector for the corresponding input channel.
2. A connection line will appear in the signal flow diagram between the mix points, and the numbered
input selector will be highlighted.
Making Connections in the Matrix Mixer Window
For more complex configurations with many crossing connection lines, the Matrix Mixer window can
provide an easier method of connecting inputs to outputs.
1. Double-click on the mix block for the output you wish to connect.
2. In the left side of the Matrix Mixer window, click the input button for each input
channel connection.
3. A connection line will appear in the signal flow diagram between the mix points, and the numbered
input selector will be highlighted for each active connection.
Deleting Connections
§ Click on a connection line and press the DELETE key.
§ Click on the input selector corresponding to the connection.
This toggles the connection off.
§ Click on a connection line and use the right-click contextual menu.
§ Select multiple connections by holding down the CTRL key while clicking.
SHURE P4800 System Processor Software Guide Page 18 of 108
Creating a Configuration
x
Naming a Preset or Scene File
Since you can store up to 128 different presets in the System Processor, it can be helpful to
differentiate them with a name and a brief description. The information box in the center of the control
bar of the main window displays these details, as pictured below in figure 11.
Figure 11 −Information Bo
The name you enter here becomes both the name of the preset when you store the configuration to
the device, and the name of the scene file when you save it to PC. The description will also be
displayed in all the dialog boxes that list presets or scene files. You can revise these details at any
time in either Live Mode or Design Mode.
To name a preset or scene file:
1. Click once with the left mouse button anywhere in the
Information Box.
2. The Information dialog opens.
3. Enter a name with a maximum of 15 characters and a
description with a maximum of 80 characters.
4. Click [OK].
5. The Information Box updates to reflect your changes.
Figure 12 − Scene Information Dialog
Processor Configuration
There are two levels of working with processors: at the configuration level in the signal flow diagram, and within
each processor’s individual parameter window, which is accessed by double-clicking on the processor block.
This section covers working with processors in the signal flow diagram, and explains the differences between
the two main categories of processors.
Processor Types
You will be working with two main types of processors in the signal flow diagram: fixed and modular. The
primary distinction between them is that fixed processors are part of the gain structure of the P4800, and
are therefore part of every signal flow configuration. Modular processors are the processor blocks that you
select and position any way you'd like to suit your particular system requirements.
Fixed Processors
The gain and mix blocks are called fixed processors because their locations on the channel strips are
permanent. They cannot be deleted, moved, copied, or pasted. However they can be linked, and their
settings can be saved and recalled.
Modular Processors
The modular processor blocks are called modular because they can be placed on any empty slot
(excepting crossovers, splitters, and the ducker), and freely moved, copied, pasted and deleted. Each
processor block on the signal flow diagram functions independently. When you open the parameter
window of a modular processor, you are changing settings for that block only, except under the
following conditions.
§ It is half of a stereo pair.
§ It is assigned it to a link group.
SHURE P4800 System Processor Software Guide Page 19 of 108
Creating a Configuration
Adding Processors
Each channel strip has a row of empty slots that can contain any of the modular processor blocks.
Except for crossovers and splitters, there are no restrictions on where processors can be placed on the
signal flow diagram, or how many times you can use a given processor on the same channel strip.
Empty slots between processors do not affect the signal flow, so blocks do not have to be adjacent on
the channel strips.
When processor blocks are first added to the signal flow diagram, they contain factory default settings.
You can individually change each processor’s settings by opening its parameter window. The blocks
will retain their settings even when copied or moved to a different slot.
Populating Empty Slots
Processor blocks can be added to the signal flow diagram either by using the Processor Toolbox, or by
menu command. Each method is described below.
With the Processor Toolbox
You can use the mouse to grab a processor block from the Processor Toolbox. The mouse cursor will
change to alert you that your next mouse action will place the block in the signal flow diagram. The
cursor’s appearance depends on its location, as illustrated in the following table.
Location where processor
can be placed
Inappropriate location for
that processor.
To add a processor block from the Processor Toolbox:
§ Click and hold the left mouse button to drag a processor block from the Processor
Toolbox to the signal flow diagram. Release the mouse button to place the block at the
current cursor location.
- OR -
§ Click once on a processor block in the Processor Toolbox, then click again on the
appropriate empty slot in the signal flow diagram.
Tip! If you change your mind after you have clicked on a processor block in the
Processor Toolbox window, you can use the ESC key to cancel this operation
before you place the processor in the signal flow diagram.
With a Menu Command
You can add processors to the signal flow diagram without opening the Processor Toolbox, by using
either the main menu or the right-click contextual menu, as described below.
To add a processor block using the menu:
1. Click to select an empty slot.
2. Use the right-click contextual menu to select a processor.
- OR -
3. Use the [Processor>Add] option on the main menu bar.
Another advantage to using a menu command to place your processor blocks is that you can place the
same type of processor in multiple slots with a single menu command.
SHURE P4800 System Processor Software Guide Page 20 of 108
Creating a Configuration
To add multiple processor blocks:
1. C
TRL+Click to select multiple empty slots.
2. Use the right-click contextual menu to place the same type of processor in every
selected slot.
- OR -
3. Use the [Processor>Add] option on the main menu bar.
Stereo Processors
Stereo processors are placed in the signal flow diagram in much the same way as the other modular
processor blocks. However, each of the stereo channels appears as a separate block. Double-clicking
on either block will open the parameter window for both channels.
Each of the following dynamic processors will operate as a stereo pair:
Block Name Description
§ ST COMP Stereo Compressor
§ SFT ST COMP Stereo Compressor − Soft Knee Option
§ ST LIM Stereo Limiter
§ SFT ST LIM Stereo Limiter − Soft Knee Option
To add a stereo processor block from the Processor Toolbox:
1. Click on a processor block
When you select a stereo processor from the Processor Toolbox, the cursor will appear somewhat
differently than it does for other processors, as pictured in the following table.
Location where the first channel of
the stereo processor can be placed.
Location where the second channel of
the stereo processor can be placed.
2. Add the first channel of the stereo pair.
§ Click and hold the left mouse button to drag a processor block from the Processor
Toolbox to the signal flow diagram. Release the mouse button to place the first processor
channel at the current cursor location.
- OR -
§ Click once on a processor block in the Processor Toolbox, then click again on the
appropriate empty slot in the signal flow diagram.
3. The cursor changes to indicate you must place the second channel of the processor.
§ Click on the appropriate slot to add the second stereo channel.
To add a stereo processor using the menu:
TRL+Click to select empty slots on two different channels.
1. C
2. Use the right-click contextual menu to place both channels of the stereo pair.
- OR -
3. Use the [Processor>Add] option on the main menu bar.
SHURE P4800 System Processor Software Guide Page 21 of 108
Creating a Configuration
Crossovers and Splitters
Since they are output processors, crossovers can only be placed on output channel strips. They can be
added to output strips like any other processor block, but you must take into account the following:
§ A crossover extends downward to span the specified number of outputs, so you must
select a channel strip that has enough outputs below it.
§ A crossover block can only span consecutive outputs.
§ Crossovers cannot overlap on any output strips.
§ Mix points will disappear from all outputs spanned by the crossover, except the top
channel strip.
§ Processor slots to the left of the crossover will disappear from outputs below the top strip.
§ Splitters possess the same signal flow ramifications and restrictions as crossovers.
If your configuration calls for crossovers, they should be added to the signal flow diagram before you
connect mix points or add other processors to the output channel strips.
Ducker
The ducker should be placed only on the input channel strip that carries the paging signal. The system
will not allow you to place a ducker on an output strip.
Replacing Processors
Only one processor block at a time can occupy a given slot. To replace an existing processor with another,
first delete it from the slot then add the new processor using any of the methods described above.
Managing DSP Resources
Although the P4800 has sufficient processing power for many applications, it is possible to populate
the signal flow diagram with more processor blocks than the device's DSP (digital signal processing)
resources can handle. This section explains in general terms how the System Processor manages the
signal processing requirements of a configuration, and gives you some hints on how to get the most
out of the DSP resources.
Resource Allocation
By placing a processor block on a channel strip, you are allocating the DSP resources necessary for it to
run at its maximum capacity. This is why so many varieties of the same type of processor blocks are
provided; so that you can select only the amount of processing you actually need for a given module. When
you are designing a simple configuration, it is not critical to pay attention to how much DSP is being utilized.
However, the more complicated the configuration, the more important it is to select processor blocks that
use the minimal processing resources necessary to get the job done.
For example: when you place a ten-band parametric EQ on a channel strip, you will instantly allocate
the processing power required by all ten filters, even if you are only using four of them. The PEQ5
would be the best choice, in this instance.
Delay Memory
The System Processor has a memory buffer that will hold up to 20 seconds of delay time, which you
can divide among any combination of delay processors. Like DSP resources, delay memory is
allocated to each processor block according to the maximum delay time indicated in the block name.
For example, if you need 45 ms of delay, don’t use the 2-second delay when the 150ms delay will
do just as well. Even though both processors may be set to the same values, the DLY 2s block still
occupies a full two seconds of delay memory.
Note: Do not confuse delay memory with DSP resources. Each delay utilizes the same
amount of DSP, regardless of its maximum delay time.
SHURE P4800 System Processor Software Guide Page 22 of 108
Creating a Configuration
DSP Usage Meters
These meters, located at the bottom of the main window, indicate the amount of DSP resources and
delay memory utilized by the current configuration. Knowing the amount of DSP resources and delay
memory you have left enables you to manage your processor choices efficiently. When you add or
remove a processor block from the signal flow diagram the DSP meter instantly compiles the results,
and indicates the system resources that are being utilized by the current processor configuration.
Note: The DSP usage meter indicates the percentage of total resources the preset is
occupying, not than the amount of resources the processors consume individually.
Because the P4800 performs DSP with multiple processor chips, the DSP meter may not accurately
represent the amount of available resources. If the meter indicates 20% is available, but you can't add a
processor, it may be because the available resources are divided between the processor chips, rather than
being available in one place. Refer to the DSP Optimization Hints paragraph below for some solutions.
Note: P4800 units with a serial number starting with the letter N or higher will allow you
to story any scene that you can create in Design Mode. For older units (indicated
by a serial number starting with L or M) scenes that use less than 87%, as
indicated by the DSP meter should be usable. However, because resources are
allocated across multiple processor chips, the meter may not precisely represent
available DSP capacity. It is possible than an older unit may not be able to use a
scene even if the DSP meter reads less than 87%. This may happen if your
scene uses multiple DFR5, DFR10, and/or GEQ30 blocks. To ensure that a
scene will be usable on a P4800 with a serial number starting with L or M, you
should connect to the unit and go to Live Mode. In Live Mode, the DSP meter
and processor usage percentages listed in the Processor Toolbox will be scaled
to accurately reflect the capacity of the unit.
DSP Optimization Hints
If the message box shown in figure 13 appears when you
attempt to add a processor, optimize your configuration to free
up DSP resources, then add the processor. The following hints
will help you optimize DSP resources.
§ Move processor blocks from one side of the matrix mixer
to the other, beginning with the ones that consume the
highest percentage of DSP resources (see Appendix B:
DSP Usage Per Processor on page 102 for details on
processor DSP usage).
Example: move a DFR10 from the output side of the
signal flow diagram to the input side, or vise versa.
§ Consolidate multiple EQs on the same signal path into a single module, if possible.
Example: two PEQ3s consume more DSP than a PEQ7. Note that all PEQ's are available
with cut and shelf filters in order to conserve DSP. The only feature specific to the
CUT/SHELF module is the 24dB/oct slope. If you don't require this feature, it is not
necessary to include cut and shelf filters in a separate module on the same signal path.
§ Consolidate multiple delays on the same signal path into a single module, if possible.
Using two DLY5ms blocks to achieve 7 ms of delay uses twice as much DSP than a
single DLY150ms block, even though it conserves Delay memory.
Figure 13 − DSP Resources Message
SHURE P4800 System Processor Software Guide Page 23 of 108
Creating a Configuration
§ Add processors to the input side of the matrix mixer, instead of the output side, if possible.
§ Remove processors from any unused channels.
§ Use splitters to consolidate identical signal processing on multiple output channels.
§ Use a PEQ10 instead of a GEQ30. In most cases, you will not use all thirty filters on the
GEQ30, and the PEQ10 uses less than half as much DSP.
§ Replace DFRs with parametric EQs after you are finished ringing out the system.
For example: in a configuration where multiple DFRs are needed on multiple inputs for better
gain before feedback performance, you could initially use a DFR on each input for ringing out
the system. After the filters are deployed, copy the DFR filters and paste them in a PEQ, then
delete the DFR. You can repeat this for each input and finally leave only one DFR in the most
offending loudspeaker output for later automatic feedback detection.
Note: After you have optimized your configuration, the DSP meter may not reflect a
change, because the total percent available is actually the same. The resources
have just been re-allocated so that you can utilize them more fully.
Copy and Paste
The traditional copy, cut and paste commands function only on the modular processor blocks. This is a
convenient way to duplicate processor blocks along with their settings across multiple channels.
To copy and paste a processor block:
1. Select a processor block with a single left mouse click.
2. Select the copy command using one of the following methods.
§ Use the right-click contextual menu
§ Select [Edit>Copy] from the main menu
§ Press CTRL+C on the keyboard
3. Select an empty slot.
4. Select the paste command using either of the menus or C
TRL+V.
Note: These commands do not function with multiple selections.
Deleting from Slots
Modular processor blocks can easily be removed from a configuration without affecting any other
aspect of the signal flow.
To delete a processor block:
1. Select the processor block with a single left mouse click.
2. Select the delete command using one of the following methods.
§ Use the right-click contextual menu.
§ Select [Edit>Delete] from the main menu.
§ Press the DELETE key.
SHURE P4800 System Processor Software Guide Page 24 of 108
Creating a Configuration
Linking
You can link multiple processor blocks of the same type in order to control them as one. Changes made in
the processor parameter window of any block in a link group will simultaneously change the settings of
every other block in that group. There are a few activities, however, that will still function independently on
linked blocks:
§ Delete, Copy, Cut and Paste,
§ Moving the block to a different slot or channel strip,
§ Naming the processor parameter window.
Fixed processors at the same stage of the gain structure can also be grouped, which will synchronize the
level controls for all of the grouped channels. For example, you can group two input channel gain blocks in
order to control them as a stereo pair. You can also link all output gain blocks, in order to adjust the output
channel levels overall from a single control.
Note: Only processors of precisely the same type can be linked.
Creating a Link Group
When you first create a link group, all of the processors in that group will synchronize to the same
settings. If you have already specified settings for one of the processors prior to creating the link
group, you can designate it as the source when you first create the group, causing the other processor
blocks to inherit those settings. Alternately, if you would like to discard any previous processor
settings, you can select the factory default settings as the initial source. After the link group is created,
changes to settings of any of the linked blocks will affect all blocks in that group.
To create a link group:
TRL+Click to select multiple processor blocks.
1. C
2. Select [Processor >Link>New Link Group] from the
main menu, or [Link>New Link Group] from the rightclick contextual menu.
3. The Create Link Group dialog appears, as pictured to
the right in figure 14.
4. Enter a two-character name for the link group.
5. Choose a source for the initial link group settings.
6. Click [OK] to accept the settings.
The two-character link group name appears both on the
processor block in the signal flow diagram, and in the link
indicator at the lower right-hand corner of the processor
parameter window, as illustrated in the following table.
Processor Parameter Window Signal Flow Diagram
Note: Processors can only belong to one link group at a time.
Figure 14 − Link Group Dialog
SHURE P4800 System Processor Software Guide Page 25 of 108
Creating a Configuration
k
Adding to a Link Group
Processor blocks can be added to an existing link group, if they are the exact same type of processor
and they are currently unlinked. Any processor added to a link group will inherit the group’s current
settings.
To add blocks to an existing link group:
1. Click to select a processor block, or C
TRL+Click to
select multiple blocks.
2. Select [Processor>Link>Add To] from the main menu,
or [Link>Add To] from the right-click contextual menu.
3. The Add to Link group dialog appears, as shown in figure
15. It lists only the link groups that contain a processor
identical to the one in the selected block.
4. Select a link group.
5. Click [OK].
Figure 15 − Add to Link Group Dialog
Unlinking Processor Blocks
Processor blocks can be removed from a link group without affecting other linked blocks. You can also
dissolve a link group by unlinking all the blocks in the group.
To remove blocks from an existing link group:
1. Click to select a processor block, or C
TRL+Click to select multiple blocks.
2. Select [Processor>Link>Unlink] from the main menu, or the right-click contextual menu.
Note: A link group must contain at least two processor blocks. Removing all but one
block from a link group will dissolve the group completely.
Bypassing
From the main window, you can bypass any modular
processor block. This lets you evaluate the signal path while
temporarily excluding a processor. Bypassed blocks in the
signal flow diagram include a yellow flag, as shown in figure
16.
To toggle bypass on or off:
1. Click to select a processor block, or C
TRL+Click to select
multiple blocks.
2. Activate bypass with any of the following methods:
§ Press CTRL+B on the keyboard.
§ Select [Processor>Bypass Selected] from the main menu.
§ Use the right-click contextual menu.
Note: Crossovers and splitters cannot be bypassed.
Figure 16 −Bypassed Processor Bloc
SHURE P4800 System Processor Software Guide Page 26 of 108
Saving a Configuration
SAVING A CONFIGURATION _______________________________
After you create a configuration, you can save it to either the computer as a scene file, or to the device as a
preset, depending on whether or not you are connected to the P4800. When you are in Live Mode, the
configuration you are creating is written directly to the current live preset. You can save it to the PC at any time
by clicking the [Save As] button on the control bar of the main window.
Scene Files
You can design an entire library of signal flow configurations with the System Processor software without being
connected to the device. Configurations saved to PC are scene files that can be later recalled, revised, and
then sent to the device as presets. Scene files are saved with a “.scn” file extension.
Saving a New Scene
If you are not connected to the device, you will be saving each new signal flow configuration to the
computer as a scene file.
To save a new scene file:
1. In the main window, select [File>Save As Scene File] from the main menu or click the
[Save As] button on the control bar.
2. The Save Scene As dialog will appear.
3. Navigate to the drive and directory location for the new file.
4. Type in a file name and, optionally, a description.
5. Click [Save].
Note: Scene files for other Shure digital signal processor devices, such as the DFR11EQ
or DP11, share the same .SCN file extension. It is best to save scene files for
different device types in separate directories to help distinguish among them.
Using the Description Field
The optional description field entry helps to identify scene files when opening them. The scene file
description is copied over to the preset description when you store the scene file to the device as a
preset.
Revising Scene Files
When you make changes to an existing scene file, you can either save it with a different file name, or
overwrite the previous version.
To revise a scene file:
1. In the main window, select [File>Open Scene File] from the main menu or click the
[Open] button on the control bar.
2. The Open Scene dialog will appear.
3. Navigate to the drive and directory location of the scene file you wish to open.
4. Click on the file to select it, then click the [Open] button.
5. Make the necessary changes.
6. Select [File>Save As Scene] from the main menu or click the [Save As] button on the control bar.
7. The Save Scene As dialog will appear.
8. Click on the original file name to select it, then click [Save].
9. A dialog box will appear that prompts you to verify that you want to overwrite the previous scene file.
10. Click [Yes] to overwrite the file.
SHURE P4800 System Processor Software Guide Page 27 of 108
Saving a Configuration
Preset Management
The System Processor can store at least sixteen and up to one hundred and twenty-eight presets in its device
memory, depending upon their complexity. Once presets are stored in the device, they can be renamed,
deleted, or backed up as a set.
Store a Preset in the Device
When you are connected to the device, in Design Mode you can store new signal flow configurations
to the device as presets, or open existing scene files and store them to the device.
To store a preset in the device:
1. In the main window, select [File>Store As Preset] from the
main menu, or if you are in Design Mode you can also click
the [Store Preset] button on the control bar.
2. The Select Devices dialog will appear, as pictured on the
right in figure 17.
3. Select from the list of available devices and click [Connect].
Figure 17 − Select Devices Dialog
Figure 18 − Store Preset Dialog
1. The Store Preset dialog will appear, as
pictured on the left in figure 18.
2. Type in a preset name of no more than
fifteen characters.
3. Type in a preset number, or accept
the default.
4. Type in a description (optional), which
will help identify the contents of the
preset for further operations.
5. Click [Store].
SHURE P4800 System Processor Software Guide Page 28 of 108
Saving a Configuration
Rename a Preset
After you have stored a preset in the device, you can change its name and description in
Live Mode.
To rename a preset:
1. Click on the [Live Mode] button on the control bar.
2. Select the preset you wish to rename from the pull-down
menu in the information box on the control bar.
3. The main window will enter preview mode for the
selected preset.
4. Click the [Load] button on the control bar to make it the
live preset.
5. Click once anywhere in the information box.
6. The Rename Preset dialog will appear, as pictured to the
right in figure 19.
7. Type in the new name and/or description.
8. Click [OK].
Figure 19 − Rename Preset Dialog
Delete a Preset
From Design Mode you can delete presets from the device that are no longer in use.
To delete a preset:
1. Click on the [Design Mode] button
on the control bar.
2. Select [File>Delete Preset].
3. The Select Devices dialog will
appear.
4. Select from the list of available
devices and click [Connect].
5. The Delete Preset dialog will
appear, as pictured on the right
in figure 20.
6. Select the preset you wish to
delete, or S
multiple presets.
7. Click [Delete].
HIFT+Click to select
Figure 20 −Delete Preset Dialog
Note: The current live preset will not be available for deletion. If you need to delete this
preset, you must first select a different live preset.
SHURE P4800 System Processor Software Guide Page 29 of 108
Saving a Configuration
Device Backup
You can backup all presets stored in the device to a single archive, and restore this backup set to the device at a
later date. You must be in Design Mode to perform or restore a backup.
To backup all presets in the device:
1. Click on the [Design Mode] button on the
control bar.
2. Select [File>Backup Device] from the
main menu.
3. The Select Devices dialog will appear.
4. Select from the list of available devices and
click [Connect].
5. The Backup Device dialog appears, as
pictured on the right in figure 21.
6. Click [Backup Device].
7. The Save Backup As dialog appears, as
pictured below on the right in figure 22.
8. Navigate to the correct directory and type in a
file name.
9. Click [Save].
To restore a backup to the device:
1. Select [File>Restore Device] from the main menu.
2. The Open Backup dialog will appear, similar to the
Save Backup dialog pictured on the right in figure 22.
3. Navigate to the correct directory and select the
appropriate backup set from the list.
4. Click [Open].
5. The Select Devices dialog will appear.
6. Select from the list of available devices and click
[Connect]. This sends the backup set to the device.
Figure 21 − Backup Device Dialog
Figure 22 − Save Backup As Dialog
SHURE P4800 System Processor Software Guide Page 30 of 108
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