Dynamics Processor, Compressor | Extron electronic DMP 44 LC

Dynamics Processor

A dynamics processor alters the dynamic range, the difference between the loudest to the quietest portions of an audio signal. Each input channel offers one dynamics processor block that, when inserted, provides a compressor.

To insert a processor into an empty block, select from the processor menu (see the Insert Compressor option in the “Processor Blocks” section). The menu appears when the block is double-clicked, or is accessed from a context menu that appears when the block is right-clicked (see the diagram below).

Once the processor has been inserted, individual processor parameters can be changed in the dialog box, which is accessed by double‑clicking the processor block.

All parameters are displayed in a text box and have a resolution of 0.1 increments. Parameters can be set by direct entry in the text box to replace existing text, then pressing <Enter> or tabbing/clicking to another area. Threshold, gain/attenuation, target, and ratio parameters have adjustment points on the graph display. Use the mouse to click and drag the graph point to the desired destination/value. All time values have a horizontal slider allowing adjustment in 1 ms increments by either a click and drag of the slider handle, or focusing on the slider, then using <left arrow> and <right arrow> keys (<Page up> and <Page down> keys adjust in increments of 10 ms).

Compressor

The compressor regulates signal level by reducing the dynamic range of the input signal above a specified threshold. The input level to output level ratio determines the reduction in the dynamic range beyond the threshold setting. For example, in the diagram below, with a ratio setting of 2:1, for every 2 dB of input above the threshold, the compressor outputs 1 dB.

Compression is commonly used to contain mic levels within an acceptable range for maximum vocal clarity. A compressor can also make softer sounds louder in one of two ways. The dynamic range can be reduced by compressing the signal above the threshold while raising the post‑compressor gain/trim (referred to as "make‑up gain"). Alternately, the input signal can be increased while the compression ratio above the threshold is increased correspondingly to prevent clipping. Both techniques have the effect of making louder portions of a signal softer while at the same time increasing softer signals to raise them further above the noise floor.

DMP 44 LC • Operation

DMP 44 LC specifications

The Extron DMP 44 LC is a powerful digital audio processor designed to cater to a wide range of audio distribution and mixing applications. It combines advanced audio processing capabilities with intuitive controls, making it an ideal solution for classrooms, conference rooms, and other professional audio environments. The DMP 44 LC features four inputs and four outputs, which provide incredible flexibility for any audio setup.

One of the standout features of the DMP 44 LC is its comprehensive DSP capabilities. The device incorporates Extron's renowned DSP technology, which offers extensive signal processing functionality including automatic mixing, gain sharing, EQ, delay, and filtering. These tools allow users to optimize audio performance, ensuring that sound quality is consistent and clear across all speakers and microphones.

In terms of connectivity, the DMP 44 LC offers a versatile array of input and output options. It includes balanced, low-impedance microphone and line level inputs, ensuring compatibility with a wide variety of audio sources. Outputs are also balanced, allowing for seamless integration with professional audio systems. The unit’s input and output configuration can be easily customized, accommodating different audio formats and setups.

The DMP 44 LC utilizes Extron’s patented ProDSP technology, which delivers precise signal processing capabilities without sacrificing audio quality. This technology supports high-resolution audio processing, enabling users to achieve the best sound reproduction possible. Moreover, the device allows for remote control and monitoring via an intuitive web-based interface, making it easy to manage audio settings from any location.

Another key characteristic of the DMP 44 LC is its robust design tailored for professional use. The compact form factor can be easily integrated into various environments, whether mounted in a rack or placed on a shelf. Additionally, its enhanced thermal management and sturdy construction ensure reliability and durability in demanding applications.

The DMP 44 LC embodies the latest advancements in audio technology, making it a reliable choice for professionals seeking high-quality sound management. With its extensive features, the digital audio processor allows for seamless audio mixing and processing, ensuring optimal performance in any audiovisual setup.