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Model DP11EQ User’s Guide
DP11EQ
Dynamics Processor, Equalizer, and Delay
with Windows Software
2006, Shure Incorporated
27A8630 (Rev. 2)
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TABLE OF CONTENTS INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . English – 2 Hardware Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . English – 2 Software Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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INTRODUCTION DATA The Shure Model DP11EQ is a single-channel, digital signal processor that combines a comprehensive dynamics processor, two parametric equalizers, and a delay in a single, half-rack enclosure. The DP11EQ can function as a gate, expander, Automatic Gain Control (AGC) leveler, compressor, limiter, and no overshoot peak limiter. All of these features are accessed via the supplied Windows* software. You can connect a computer to set up the unit in a sound system, then remove the c
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DP11EQ HARDWARE Overview Front Panel DATA BYPASS Button and LED. Press this button to Dynamic Gain Meters. The 7 red LEDs on the left suspend all signal processing from the audio path. indicate the reduction in dynamic range, while the When the LED illuminates, the dynamics three yellow LEDs on the right indicate dynamic processor, delay, and the equalizers are boost. bypassed. DATA LED. This LED indicates that the computer SIGNAL LED. Illuminates when input signal is is
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DIP Switches The DIP switches located on the rear panel are used for adapting the unit to the sound system requirements. See the table below. DIP FUNCTION POSITION SWITCH SWITCH UP DOWN 1–4 Device ID see below see below 5–8 unused — — 9 Output Sensitivity +4 dBu –10 dBV 10 Input Sensitivity +4 dBu –10 dBV Shure Link Device ID When multiple DP11EQ s are linked, each one must be assigned a unique Device ID, 0 through 15. DIP switches 1 through 4 on the rear panel are used to set the Device ID. T
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Audio Connections The DP11EQ is a flexible unit which can be used in almost any part of a sound system. It can be placed directly in an input channel’s insert and used as an equalizer solely for that microphone. Or, it can be placed at a mixer subgroup insert, where it can act as a compressor, equalizer, and noise gate for a group of microphones. Or, it can be placed between the mixer and the power amplifier to equalize overall room sound and function as a limiter to protect the loudspeakers
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Input Insert The DP11EQ can be placed directly on a single microphone insert to process the signal for that microphone only. This is a common location for an leveler. LINE IN CHANNEL 1 IN LINE CHANNEL 1 OUT INSERT MAIN LINE IN LINE OUT POWER AMPLIFIER DP11EQ LOUDSPEAKER MIXER LINE OUT WIRELESS RECEIVER LAVALIER MICROPHONE AND WIRELESS TRANSMITTER 6 English –
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DP11EQ SOFTWARE Introduction This section describes the Windows-based computer interface software which allows you to control the Shure DP11EQ . The software controls a dynamics processor which can operate as a gate, expander, leveler, compressor, limiter, and no overshoot peak limiter. There are parametric equalizers placed before and after the dynamics processor. In addition, there is a digital delay which can add up to 1.3 seconds of delay from input to output. Minimum Computer Requiremen
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The Shure Program Group The Shure program group contains the main application icon, a Windows Help file, and a Readme file with the most up-to-date information. To launch the application, double-click on the DP11EQ icon. This group will also contain other Shure software stored on your hard drive. Configuring the Computer Serial Port 1. Launch the DP11EQ software. 2. Click on Communications in the main menu bar. 3. Click on the COM port option of the drop-down menu. 4. In the Serial Port Option
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Overview Main Control Panel. In the main control panel, Parametric Equalizer Panels. There are two there is button for muting the sound. There is also parametric equalizers in the unit. Each one has a button for bypassing overall processing, allowing high- and low- frequency filters which can be set you to hear the unaffected sound. There is also a as shelf or cut, along with additional parametric Processor Select virtual signal path which allows filters. There is a response cu
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MAIN CONTROLS The top panel contains the main controls for the DP11EQ software. CURRENT DEVICE ID SCENE NAME UNIT NAME STATUS Main Menu. The main menu contains options for PROCESSOR SELECT Buttons. See connecting, storing and recalling scenes, and Processor Select Buttons, below. networking with other DP11EQs and DFR11EQs. There is also a help file for online assistance. DYNAMIC GAIN Meter.
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DYNAMICS PROCESSOR Dynamic range is the difference between the loudest and quietest levels of an audio signal. Controlling dynamic range plays an important role in good audio quality. Using the DP11EQ Dynamics Processor, you can control the dynamics of a sound system to improve audio quality. You can use the gate or expander to mute or lower the sound when no one is talking, use the leveler to raise the audio level if the source sound is too quiet, quieten sounds that are too loud with the com
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Dynamics Parameters The edit boxes are used to adjust the parameters of each dynamics process. This section gives general definitions of the parameters. See Dynamics Processes for more specific information. THRESHOLD. The Threshold parameter RATIO. The Ratio determines how much the processor will affect the sound. For example, if the determines the input level at which dynamics compressor is set to a ratio of 2:1, for every 2 dB processing begins. For the gate and the increase of the input
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Dynamics Processes Gate Definition: A gate mutes an input signal when it drops below a user defined threshold. Every sound system has a certain amount of noise or hiss. Some of this noise is in the background (the hissing of air conditioners), and some may be caused by electrical sources affecting the equipment (electromagnetic hum caused by fluorescent lights). This noise and hiss is usually at such a low level that it is drowned out when there is program material present. However, if the
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AGC Leveler Definition: The AGC leveler (AGC stands for Automatic Gain Control) automatically lowers or raises the signal level for sounds of varying loudness in order to create a more consistent volume. Application: The leveler can be used for podium and lectern microphones, where it is desirable to maintain a constant volume level when the talker may be moving back and forth from the microphone. The leveler detects a lower level coming from the talker when they are farther away, and compens
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Compressor Definiton: A compressor reduces the dynamic level of an input audio signal by an amount determined by the ratio setting (usually less than 10:1). Typically, a compressor has a slower reaction time than a limiter. Application: Compression can be used in order to scale a signal with a wide dynamic range to audio equipment with a smaller dynamic range (amplifier, loudspeaker, tape recorder, etc.). Compression can also be used to improve the audio quality when a talker has a tendency t
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No Overshoot Peak Limiter Definition: The no overshoot peak limiter has the ratio fixed at infinity to one (∞:1), uses fast time constants and inserts 1 millisecond signal path delay, allowing the gain reduction to act instantaneously, without audible clipping artifacts, once the input level goes above the threshold. With the no overshoot peak limiter, no peaks will pass through the system, yet the harshness of clipping is avoided. Application: A peak limiter is often used to protect against s
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PARAMETRIC EQUALIZER The DP11EQ also contains two parametric equalizers, with up to 11 parametric filters possible. These equalizers can be used for tuning out feedback or other anomalies in the frequency response of the acoustics of a room or sound system. There are high- and low-frequency rolloff/shelf filters, and parametric filters with adjustable frequency, gain, and width. Parametric filters are represented as dots, while the high- and low-frequency filters are represented as squares. W
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Setting and Adjusting Parametric Filters Point and click on a filter. It will change colors to show that it is selected. Then, drag the filter by the center to the desired frequency and gain. A parametric filter can be used to cut or boost over a desired bandwidth. Notice that each filter dot also has wings with two smaller dots. drag these to adjust the Q, or width, of the filter to affect a smaller or larger bandwidth. The Q can also be adjusted from the WIDTH field: click on the ↓ butto
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Response Graph This section describes how to use the Response Graph, which displays the frequency response for the DP11EQ. Snapshots A helpful feature of the response graph is the ability to take snapshots of a frequency response curve. A snapshot allows you to view a trace of the original response curve while making changes. This is an effective setup tool. In the illustration above, the upper curve is the frequency response of the current settings, while the lower curve is the snapshot of th
