Extron electronic •DMP 44 LC Operation •Front Panel Operation, •Line Output Channels

Operation

This section describes the operation of the DMP 44 LC, including:

•DMP 44 LC Operation

•Front Panel Operation

•Rear Panel Operation

•DSP Processing/Signal Flow

•Processor Blocks

•Mix Matrix

•Line Output Channels

DMP 44 LC Operation

The DMP 44 LC does not have physical controls. Configuration and operation are 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.

DMP 44 LC • Operation 9