Extron electronic Extron Electronics Music Mixer DMP 44 LC User Manual
Operation
This section describes the operation of the DMP 44 LC, including:
•
•
•
•
•
•
•
DMP 44 LC Operation
The DMP 44 LC does not have physical controls. Configuration and operation are
accomplished using a PC running Windows
accomplished using a PC running Windows
®
XP or better and the DSP Configurator
software (available on the included disc or at
www.extron.com
), or the Extron Simple
Instruction Set (SIS) using HyperTerminal or DataViewer.
The DMP 44 LC is configured for immediate operation, with each input routed to its
respective output (input 1 routed to output 1, input 2 routed to output 2, and so on).
While these settings allow the device to pass audio when first connected, it rarely meets
the needs of most applications. The DMP 44 LC can be fully configured using the DSP
Configurator software.
The DSP Configurator software, when first launched, gives you a blank configuration with
no processing and no mixing or routing. All gain stages are set to “unity gain,” or
0 dB of gain. Input and output gain stages provide metering in dBFS that will assist you in
configuring the device for optimal operation. The DMP 44 LC is a digital device, therefore
optimal operating levels are close to 0 dBFS without ever going over 0 dBFS (0 dB “full
scale” on the input or output meters). Levels above 0 dBFS cause clipping, which is always
audible on a digital device.
All gain stages in the DMP 44 LC are mono. Gain may also be controlled using a Group
master, which is configured with the DSP Configurator software. Group masters can
be used to group multiple gain or mute controls, group multiple bass or treble boost/
cut controls, gang two gain or mute controls for stereo operation, or even to control a
single gain point. Soft limits can be applied to group masters. Sometimes a particular gain
range may be too great, allowing for settings that are too loud or too soft, while in some
instances the loudest settings may cause feedback or clipping. Soft limits can be used to
limit the gain range for smoother operation.
Finally, the DMP 44 LC provides a comprehensive set of DSP processing tools. Use the filter
tools to shape the tonal quality of your source material or EQ the room to compensate for
acoustic gain. Use the dynamics processors for level control or system protection. The
DMP 44 LC is a versatile matrix processor for many applications.
The DMP 44 LC is configured for immediate operation, with each input routed to its
respective output (input 1 routed to output 1, input 2 routed to output 2, and so on).
While these settings allow the device to pass audio when first connected, it rarely meets
the needs of most applications. The DMP 44 LC can be fully configured using the DSP
Configurator software.
The DSP Configurator software, when first launched, gives you a blank configuration with
no processing and no mixing or routing. All gain stages are set to “unity gain,” or
0 dB of gain. Input and output gain stages provide metering in dBFS that will assist you in
configuring the device for optimal operation. The DMP 44 LC is a digital device, therefore
optimal operating levels are close to 0 dBFS without ever going over 0 dBFS (0 dB “full
scale” on the input or output meters). Levels above 0 dBFS cause clipping, which is always
audible on a digital device.
All gain stages in the DMP 44 LC are mono. Gain may also be controlled using a Group
master, which is configured with the DSP Configurator software. Group masters can
be used to group multiple gain or mute controls, group multiple bass or treble boost/
cut controls, gang two gain or mute controls for stereo operation, or even to control a
single gain point. Soft limits can be applied to group masters. Sometimes a particular gain
range may be too great, allowing for settings that are too loud or too soft, while in some
instances the loudest settings may cause feedback or clipping. Soft limits can be used to
limit the gain range for smoother operation.
Finally, the DMP 44 LC provides a comprehensive set of DSP processing tools. Use the filter
tools to shape the tonal quality of your source material or EQ the room to compensate for
acoustic gain. Use the dynamics processors for level control or system protection. The
DMP 44 LC is a versatile matrix processor for many applications.
DMP 44 LC • Operation
9