Extron electronic DMP 44 LC manual

User Guide DMP 44 LC Audio Products: Mixers and Processors Four -Line Input and Four -Line Output Digital Matrix Pr ocessor 68-1938-01 Rev . B 05 12[...]

This symbol is intended to alert the user of important operating and mainte- nance (servicing) instructions in the literature provided with the equipment. This symbol is intended to alert the user of the presence of uninsulated dangerous voltage within the product’ s enclosure that may present a risk of electric shock. Caution Read Instructions ?[...]

FCC Class A Notice This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. Operation is subject to the following two conditions: 1. This device may not cause harmful interference. 2. This device must accept any interference r eceived, including interference that may caus[...]

Conventions Used in this Guide In this user guide, the following are used: NOTE: A note draws attention to important information. TIP: A tip provides a suggestion to make working with the application easier . CAUTION: A caution indicates a potential hazard to equipment or data. WARNING: A warning war ns of things or actions that might cause injury [...]

v DMP 44 LC • Contents Introduction .....................................................1 About This Guide ................................................ 1 About the DMP 44 LC Digital Matrix Processor .... 1 Features .............................................................. 1 DMP 44 LC Application Diagram ......................... 4 Insta[...]

DMP 44 LC • Contents vi[...]

Intr oduction This section describes this guide and the DMP 44 LC, including: • About This Guide • About the DMP 44 LC Digital Matrix Processor • Features • DMP 44 LC Application Diagram About This Guide This guide contains installation, configuration, and operating information for the Extron DMP 44 LC Digital Matrix Pr ocessor , software c[...]

• Outputs — Four balanced or unbalanced line on 3.5 mm, 6-pole captive screw connectors. • 4x4 line level audio matrix mixer — The DMP 44 LC is a compact matrix processor with DSP . It featur es four line level inputs that can be processed, mixed, and routed to four line level outputs. • DSP audio signal processing — The DMP 44 LC pr ov[...]

• 16 DSP Configurator presets — Using the DSP Configurator softwar e, parameters for DSP processing, signal levels, or audio r outing can be saved as presets. These settings can be saved for the entire system, or any selected gr oup of inputs, outputs, mixing points, and DSP blocks. • Group masters — The DMP 44 LC pr ovides the capability t[...]

DMP 44 LC Application Diagram DMP 44LC Tx Rx 1 2 3 RS-232 DIGI IN 3 4 1 O U T P U T S 2 3 4 1 I N P U T S 2 POWER 12V 0.3A MAX RESET 100-240V 0.5A, 50-60Hz VOL/MUTE STANDBY CLASS 2 WIRING 1 2 LISTED 17TT AUDIO/VIDEO APPARATUS XPA 1002 C US LEVEL 1 1 2 1 2 LIMITER/ PROTECT SIGNAL 2 INPUTS OUTPUT REMOTE 0 0 10V 50 mA 1 3 2 4 5 6 7 8 0.4A MAX POWER 1 [...]

Installation This section describes the installation of the DMP 44 LC, including: • Mounting the DMP 44 LC • Rear Panel Features and Cabling Mounting the DMP 44 LC The 1U high, quarter rack width, 3.0 inch deep DMP 44 LC Digital Matrix Processor can be: • Set on a table, • Mounted on a rack shelf, • Mounted under a desk or tabletop, or ?[...]

SECTION A–A AA Po wer Suppl y Output Cord 2-P ole Captive Screw Connector Ridges Smooth Tie Wrap 3/16” (5 mm) Max. Figure 2. Power Supply Wiring WARNING: The two power cord wir es must be kept separate while the power supply is plugged in. Remove power before wiring. CAUTIONS: • Always use a power supply supplied by or specified by Extron. Us[...]

b Power/Reset LED — The green LED indicator duplicates the fr ont panel LED operation (see the “ Reset Actuator and LED ” section for additional information). c Line 1-4 input connectors — 6-pole 3.5 mm double-stacked captive screw connectors accept balanced or unbalanced mono line level signals. Line inputs provide gain settings to accommo[...]

The digital input port is used to monitor TTL level digital signals. V oltages greater than 2 V indicate a logic “high” signal while voltages less than .8 V indicate a logic “low .” NOTE: These ports are configur ed via DSP Configurator (see the “ Digital input ports ” section for additional information). Do not tin the wires! 1 2 3 _ D[...]

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 ar e accompl[...]

Fr ont Panel Operation DMP 44 LC DIGIT AL MA TRIX PROCESSOR CONFIG 1 2 Figure 6. DMP 44 LC Front Panel a Power/Reset LED — Green power indicator lights when the DMP 44 LC is operational. b Configuration connector — The USB 2.0 port uses a mini type-B connector to connect to a host computer for control. The DMP 44 LC USB driver must be installed[...]

Firmware Updates The firmware of the DMP 44 LC can be updated thr ough USB or RS-232 connection. The user can obtain new firmware fr om the Extron website. After obtaining the new firmware, upload it to the unit using the Firmware Loader option in the DSP Configurator program (see the “ Software Contr ol ” section ), or using the Extron standal[...]

Digital Input Ports The three-pin Digital Input port is used to monitor or drive TTL level digital signals. The port consists of three input pins with the fourth pin being used as a gr ound providing three inputs total. The DSP Configurator softwar e provides a selection of functions to be loaded to the DMP 44 LC (see the “ Software Contr ol ” [...]

3. Select the event or “trigger” to configure the input. 4. Select the action that results when the trigger occurs. 5. Select the group to act upon when the trigger event occurs. 6. Select Apply to accept the changes. DMP 44 LC • Operation 13[...]

DSP Pr ocessing and Signal Flow The diagram below shows the signal flow and DSP processing per signal chain. Signal chains and the matrix are described in the following sections. All signal routing, pr ocessing, and level control (gain/trim/volume), are accomplished using software contr ol from a PC connected to the DMP 44 LC via the USB configurat[...]

Mix Matrix The line input process r outes incoming signals through a mix matrix to the line outputs. The mix matrix contains 16 mix-points, one for each input to each output bus with each mix-point containing a single fader with a range of -24 dB to +12 dB, plus a mute control. The step resolution is 0.1 dB. Line Output Chain Line output chain elem[...]

Line Input Channels There ar e four (4) mono line input channels. Channel controls and processing blocks described in the following sections are identical for each of the four inputs. Line (Input) Gain Line inputs provide gain settings to accommodate consumer and pr o line level sources. Each input channel gain block provides a mono long-thr ow fad[...]

Filter Block Each line input channel filter block allows a total of five filters. The first filter is inserted from a pr ocessor list that appears when the block is double-clicked or via a context window/processor list when the block is right-clicked. After the processor is inserted, double-clicking opens the setup dialog box. Figure 8. Filter Bloc[...]

Figure 9. Filter Dialog Box, Filters Added Within the dialog box, a filter is focused when a filter type is inserted, or is focused by clicking the filter number to the left of the filter selection drop-down list. Note how filter 3 in the figure below is highlighted in yellow , indicating it is the filter in focus. The results of the filter in focu[...]

Parametric (Equalizer) Up to three parametric filters can be placed in the filter box at one time. Each may be set to a differ ent frequency creating a 3 band parametric equalizer . The control will boost or cut the center frequency , and by changing the Q value, the range of affected fr equencies can be widened or narrowed ar ound the center frequ[...]

The parametric filter allows frequency selection accurate to 0.1 Hz and either 6 or 12 dB of slope. Notice at the specified frequency (100 Hz) the signal is 3 dB down, typical operation for high pass filters. The 3 dB down point will remain constant r egardless of the slope setting. Only the steepness of the frequency attenuation curve will change.[...]

Bass and T reble Shelving Bass and treble shelving may be added to the filter , as shown below . Adding this filter automatically inserts both bass and treble contr ols in the dialog box. If only a bass or only a treble filter is r equired, either bypass the unneeded control or set it to unused in the selection box. Figure 15. Bass and T reble Shel[...]

2. Specify bass and treble filters if necessary . Configuring Groups 1. From the View menu, select Group Controls . 2. T o add a new group, select Add a Group . DMP 44 LC • Operation 22[...]

3. Select a group to configur e. NOTE: T o configure Bass and T reble groups, see “ Configuring Bass and T reble Groups .” 4. Select a control type for the gr oup. DMP 44 LC • Operation 23[...]

5. Define the group members. Configuring Bass and T reble Groups 1. From the main DSP Configurator scr een, select the Filters block, as shown below . DMP 44 LC • Operation 24[...]

2. From the dr op down menu select Bass & Treble Filters . 3. Double-clicking the Filters processor opens the configuration scr een. Configure the bass and treble parameters. NOTE: The Bypass button is red when the filter is bypassed or not active. 4. T o configure a control gr oup member , select Control Groups from the Tools drop-down menu. D[...]

5. Select the Bass or T reble control gr oup. 6. Select the group members. 7. Repeat steps 5 and 6 for the unselected control gr oup (Bass or T reble) . DMP 44 LC • Operation 26[...]

Dynamics Processor A dynamics processor alters the dynamic range, the dif ference between the loudest to the quietest portions of an audio signal. Each input channel offers one dynamics pr ocessor block that, when inserted, provides a compr essor . T o insert a processor into an empty block, select from the pr ocessor menu (see the Insert Compresso[...]

Compression can also be used to pr otect a system or a signal chain from overload similar to a limiter . Threshold — The input signal level above which compr ession begins (subject to attack time) and below which compression stops (subject to hold and r elease time). Threshold level can be adjusted fr om -80.0 to 0.0 dB in 0.1 dB increments. Defa[...]

Limiter The limiter restricts the input signal level by compr essing its dynamic range above a specified threshold. The limiter is most commonly used to pr event clipping, protecting a system against component or speaker damage. While the limiter is closely related to the compressor , it applies a much higher compression ratio of ∞ :1. The ratio [...]

Ducking is configured in a window which opens when an active ducking pr ocessor block is double-clicked (see the following diagram). Ducking can be globally set up from a single configuration window , which opens when any of the active ducking processor blocks are double-clicked. When a ducking pr ocessor block is inserted, it is automatically set [...]

Ducking Configuration Dialog a Current sour ce indicator Shows the selected input. Ducker settings affect the input channel shown her e. When a ducker dialog is opened for a channel, the current sour ce defaults to that channel. The current sour ce can also be selected via the priority readout/source selector (see the following figure). b Enable so[...]

f By (dB) Individual attenuation settings for each duck target in dB. The default is 20.0 dB. If additional attenuation of the targets is requir ed, increase this value. The attenuation range is 80.0 to 0.0 dB in 0.1 dB increments. Priority In some cases, multiple levels of ducking may be requir ed enabling an input source to take precedence over a[...]

Mix Matrix The DSP architectur e contains a mix matrix that connects the line inputs to the line outputs. The DSP Configurator GUI provides contr ol of the mix matrix, used to set mix levels from the post pr ocessing inputs, to each line output bus. Each of the four line inputs is connected to a mix-point for each of the four line outputs. In gener[...]

• OK/Cancel — Click OK to accept changes and close the window . Cancel ignores changes and closes the window . The title above the fader reflects the output channel name for the mix-point. Mix-point GUI behavior: No mix information — A solid gray ball indicates thst the mix-point is muted (contains no mix information). Mix information — A s[...]

Double-click — Double-click to open the mix-point dialog box. The focus circle turns light green in color to indicate the open dialog box, as show in the following figur e. If the mix-point is muted, the mix-point ball will be gray . If unmuted, the ball will be teal. Multiple open dialog boxes — When multiple mix-point dialog boxes are open, t[...]

In order to understand how the mix-points work, the following figur es provide examples of mixes. In the first example figure below , input audio from mic input 1 is pr ocessed and arrives at the mix-point. Double-clicking on the mix-point opens the dialog box. When the Mute button is released (not r ed) on input 1 of the mix-point, the mix-point t[...]

In the example figure below , inputs 1 to 4 have been routed to outputs 1 thr ough 4 by unmuting the mix-point for mic/line input 1 on each output (1 through 4) bus. Again, the mix-points are teal to indicate the r outing. Figure 21. All Inputs to All Outputs Line Output Channels There ar e four mono line output channels. Controls and processing bl[...]

Dynamics The output channel dynamics block provides a limiter function (see the diagram below) that restricts the input signal level by compr essing its dynamic range above a specified threshold. The limiter is most commonly used to pr event clipping, protecting a system against component or speaker damage. While the limiter is closely related to t[...]

SIS Pr ogramming and Contr ol This section describes SIS programming and contr ol of the DMP 44 LC, including: • Connection Options • Command/Response T able for Basic SIS Commands • Special Characters • Command/Response T ables for DSP SIS Commands Connection Options The DMP 44 LC Digital Matrix Processor can be r emotely connected via a h[...]

USB Port (front panel) The DMP 44 LC has a front panel USB port that can be connected to a host device such as a computer running the HyperT erminal utility , DSP Configurator , or the DataViewer utility . The port makes serial control of the DMP possible. After the connection is established, see “ Using the Command/Response T ables ” later in [...]

Error Responses When the DMP 44 LC is unable to execute the command, it returns an error r esponse to the host. The error r esponse codes and their descriptions are as follows: Code Description E10 Invalid command E11 Invalid pr eset E12 Invalid port number E13 Invalid parameter (number is out of range) E14 Not valid for this configuration E17 Syst[...]

X% = Internal temperature Degrees Celsius X^ = Dirty status 0 = RAM has been saved to Flash (OK to power off/r eset) 1 = RAM needs to be saved to Flash X& = Unit name A text string of up to 24 characters drawn from the alphabet (A–Z) digits (0–9), minus sign/hyphen (-). No blank or space characters are permitted as part of the name. No dist[...]

Command ASCII Command (Host to T uner) Response (T uner to Host) Additional Description Setup Commands Set verbose mode E X# CV } Vrb X# ] Set verbose/response mode. 0 = clear 1 = verbose 2 = tagged responses 3 = verbose + tagged responses View verbose mode E CV } X# ] View verbose mode Set unit name E X& CN } Ipn • X& ] Set the unit name[...]

Command ASCII Command (Host to T uner) Response (T uner to Host) Additional Description Partial preset commands Recall preset X1) . Rpr X1) ] Recall preset. Group Master Commands Group Master Name Set name E n X1$ * name GRPM } GrpmN X1$ * name ] Set name View name E n X1$ GRPM } name ] View name View name (verb mode 2/3) E n X1$ GRPM } GrpmN X1$ *[...]

Digital Input Commands Command ASCII Command (Host to T uner) Response (T uner to Host) Additional Description Configure digital input E X! * X@ * X# * X$ GPIT } GPIT X! * X@ * X# * X$ ] See table below View digital input E X! GPIT } Vrb mode 2/3: X@ * X# * X$ ] GPIT X! * X@ * X# * X$ ] View digital input View I/O state X! *] Vrb mode 2/3: X% ] Si[...]

Command/Response T ables for DSP SIS Commands Many digital signal processor (DSP) functions (gain, mute, and gr oup masters) can be controlled using SIS commands. These commands follow the same general rules as basic SIS commands, but the variables ( X/ ) tend to be more complex. Also, a compr ehensive understanding of the audio signal flow is help[...]

Command/Response T ables for Audio SIS Commands DSP control commands ar e an extension to SIS commands. They differ only in their data string and the requir ement to send each command with an “Au” suffix. Symbol definitions ] = CR/LF (carriage return/line feed) (hex 0D 0A) } = Carriage return (no line feed, hex 0D) (use the pipe character , | ,[...]

Special Characters The HTML language reserves certain characters for specific functions. The device will not accept these characters as part of preset names, the device name, passwor ds, or locally created file names. The DMP 44 LC rejects the following characters: { space (spaces are acceptable for names)} + ~ , @ = ‘ [ ] { } < > ’ “ s[...]

Command ASCII Command (Host to T uner) Response (T uner to Host) Additional Description Audio group master commands NOTE: • See Gr oup Masters , for more information about audio group masters. • A group must have assigned members for these commands to have an ef fect. • For X6^ , a positive (+) value is assumed unless a negative (-) value is [...]

T able 1. Level Control and Mix-point Selection T ables a Input Gain Control X6) b Pre-mixer Gain X6) Input 1 30000 Input 1 30100 Input 2 30001 Input 2 30101 Input 3 30002 Input 3 30102 Input 4 30003 Input 4 30103 c Main Mix-point X6) c Main Mix-point X6) Input 1 to Output 1 20000 Input 2 to Output 1 20100 Input 1 to Output 2 20001 Input 2 to Outpu[...]

Softwar e Contr ol This section describes the control softwar e for the DMP 44 LC, including: • Software Contr ol • DSP Configurator Program Softwar e Contr ol The DMP 44 LC can be controlled using the DSP Configurator softwar e, SIS commands through HyperT erminal or DataViewer . The DMP 44 LC has the following connection options: • RS-232 ?[...]

Figure 24. DVD Software Menu 3. Scroll to the DSP Configurator pr ogram and click the Install text to its right, as shown in the red boxes below . Figure 25. DVD Control Software Menu 4. Follow the on-screen instructions. By default, the Windows installation creates a DSP_Configurator folder in C:Program FilesExtron for the DSP Configurator progr[...]

Install the USB Driver T o install the USB driver , follow these instructions. Figure 26. USB Installer Splash Scr een 1. After the DSP Configurator program installation is complete, click Next to pr oceed. Figure 27. USB Installation DMP 44 LC • Software Contr ol 53[...]

2. The USB driver installer launches. When the installer has completed the installation of the USB drivers, the following screen appears: Figure 28. Successful USB Driver Installation 3. Click Finish . USB driver installation is complete. DSP Configurator Pr ogram Starting the Program 1. T o run the DSP Configurator Program, click Start > Progra[...]

2. Select the device to be configured and then click OK . 3. The program displays the following scr een. Using the Program In Emulate mode, audio parameters may be selected, then transferred to the DMP 44 LC by going to Live mode (while connected to a DMP 44 LC). See the following section. Audio settings can also be tailored while connected to the [...]

Emulate Mode vs. Live Mode The DSP Configurator program has two operational modes, Live and Emulate . In Live mode, the program has established a connection and is synced with the DMP 44 LC. Changes affect the device in r eal-time and changes in the current state of the device are r eflected in DSP Configurator . Emulate mode allows the user to wor[...]

Selecting Live Mode and Pushing or Pulling a Configuration T o switch from emulate mode to live mode: 4. Click the Live button, see a on the main DSP Configurator screen. The Connect to device... dialog box opens. - or - DMP 44LC 1 4a 4b 3a 3b 3c 2a 2b Figure 30. Selecting Live Mode 5. As needed, click either the: a. RS-232 tab (for connection to t[...]

8. Click either the: a. Pull radio button to overwrite the open file with the current device configuration, thenproceed to step 6 . -or - b. Push radio button to overwrite the open file, then proceed to step 6 . 9 9 10 11 8a 8b -or- Figure 31. Selecting Live Mode, continued DMP 44 LC • Software Contr ol 58[...]

9. Click OK . The DSP Configurator program is connected live to the device and the configuration and presets ar e pushed or pulled as selected. • If Pull is selected, the program overwrites the currently open file with the configuration from the device. Pr oceed to step 7 . • If Push is selected, the program overwrites the device configuration [...]

Saved presets can be r ecalled via the DSP Configurator , or a control system sending an SIS preset r ecall command. Presets may also be saved and recalled via the embedded web page. Presets saved via the web page contain input gain, output volume, and the primary mix-point settings. Previewing/Recalling a Pr eset A preset can be pr eviewed in eith[...]

Building a Preset Only elements that are highlighted (given focus) will be saved as a pr eset. <Ctrl + A> highlights all elements within DSP Configurator . T o build a preset, highlight the desired DSP Configurator elements (gain/pr ocessor blocks, mix-points) using standard Windows keyboard and mouse actions as follows: 1. <Left click>[...]

3. Select a preset number . In the Preset Name field, unused presets ar e named “unassigned.” T o create a new preset, select an unused pr eset number and type a preset name. If no name is enter ed, a default name will be assigned. T o overwrite an existing preset, select a pr eset with a name other than “unassigned.” Figure 33. Save Preset[...]

When a preset is being pr eviewed, in either Live or Emulate mode, the Delete button is available. In Live mode, the preset is deleted fr om the hardware, which is r eflected in software (it is r emoved from the preset list). After disconnecting fr om the device and before exiting the pr ogram, the file must then be saved to retain this change. In [...]

Push Configuration - Advanced, Push Presets, All There ar e a number of advanced options available when pushing a configuration that enable the user to tailor the input, signal processing, signal mix, or output to a specific preset operation. This allows the user to push the currently open configuration, including all presets, to the DMP 44 LC or t[...]

3. There ar e three options now available; Push Configuration , Push Presets or both. In this example, Push Configuration is not selected and all presets will be pushed. a. Select Push Presets only . This enables two additional options, All and Selected . b. Select All . Push Presets-All uploads all stor ed presets from DMP Configurator to the devi[...]

Push Configuration - Advanced, Push Presets, Selected The next example shows how to customize a push to include only selected presets. Connect the DMP 44 LC as described by steps 1 to 4 in the previous pr ocedure for switching from Emulate mode to Live mode (see “ T o switch from emulate mode to live mode: ”), then: 1. Select the Push radio but[...]

Refer ence Information This section contains refer ence information for the DMP 44 LC, including: • Specifications • Part Numbers and Accessories • Mounting • Firmware Loader • DMP 44 LC Hardwar e Reset Modes Specifications Audio Gain ............................................... Unbalanced output: -6 dB; balanced output: 0 dB Frequency[...]

Control/r emote — audio processor Serial host control port ................... 1 bidirectional RS-232: 3.5 mm captive scr ew connector , 6 pole (uses 3 poles) (shared with digital input) Baud rate and protocol ................... 9600 to 115200 baud (38400 baud = default), 8 data bits, 1 stop bit, no parity , no flow control Serial control pin c[...]

Part Numbers and Accessories Included Parts These items are included in each DMP 44 LC or der: Included parts Replacement part number DMP 44 LC Digital Matrix Processor 60-1095-01 3.5 mm, 5-pole captive screw connectors w/strain relief (5) 10-703-12LF 12 VDC, 1 A external power supply 70-775-01 DSP Configurator Control Softwar e DVD Rubber Feet (4)[...]

UL Rack Mounting Guidelines The following Underwriters Laboratories (UL) guidelines pertain to the safe installation of the DMP 44 LC in a rack. 1. Elevated operating ambient temperature — If installed in a closed or multi-unit rack assembly , the operating ambient temperature of the rack environment may be greater than r oom ambient temperature.[...]

3. Install blank panels or other units on the rack shelf. Furniture Mounting Furniture mount the DMP 44 LC using the optional mounting kit (Extron MBU 123, part number 70-212-01 , as follows: 1. Attach the selected mounting brackets with the machine screws pr ovided. 2. If feet were pr eviously installed on the bottom of the cabinet, remove them. 3[...]

Firmwar e Loader The DSP Configurator program includes a firmwar e loader program which allows replacing the firmware without taking the DMP 44 LC out of service. Download the desir ed firmware file fr om the Extron website, (see the Firmware Upgrade Page on the website for instructions). T o access the firmware loader: 1. Select Tools , then Firmw[...]

The Firmware Loader scr een appears. 3. From the toolbar , select File > Open . 4. Locate the downloaded firmware file and click on it. 5. Click Begin on the main screen. The total pr ogress bar tracks the loading progr ess. 6. When the upload is finished, exit the program by selecting File > Exit . The firmware upload is complete. DMP 44 LC [...]

DMP 44 LC Har dwar e Reset Modes DMP 44 LC Reset Mode Summary Mode Mode Activation Result Purpose/Notes Use Factory Firmware 1 Hold the reset button while applying power . NOTE: After a mode 1 reset, update the DMP 44 LC firmware to the latest version. DO NOT operate the firmware version that results fr om this mode reset. The DMP 44 LC reverts to [...]

Extr on W arranty Extron Electr onics warrants this product against defects in materials and workmanship for a period of three years from the date of pur chase. In the event of malfunction during the warranty period attributable directly to faulty workmanship and/or materials, Extron Electr onics will, at its option, repair or replace said pr oduct[...]