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Lectrosonics DM84 Reference Manual

Manual is about: Digital Audio Processor

Summary of DM84

  • Page 1

    Dm84 digital audio processor reference manual rio rancho, nm, usa www.Lectrosonics.Com fill in for your records: serial number: purchase date:.

  • Page 3

    Important safety instructions this symbol, wherever it appears, alerts you to the presence of uninsulated dangerous voltage inside the enclosure -- voltage that may be sufficient to constitute a risk of shock. This symbol, wherever it appears, alerts you to important operating and maintenance instru...

  • Page 4

    Dm84 digital matrix processor lectrosonics, inc. 4 note: 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. These limits are designed to provide reasonable protection against harmful interference when the equipment i...

  • Page 5

    Reference manual rio rancho, nm 5 table of contents important safety instructions ............................................................................................................................................................... 3 table of contents .........................................

  • Page 6

    Dm84 digital matrix processor lectrosonics, inc. 6 dm84 serial interface and general commands ................................................................................................................................ 44 wildcards ...................................................................

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    Reference manual rio rancho, nm 7 dm84 programmable i/o commands ................................................................................................................................................. 59 prgin (programmable input state) ........................................................

  • Page 8

    Dm84 digital matrix processor lectrosonics, inc. 8 24 by 12+2 automatic mixing matrix input #1 processing input #8 processing output #1 processing output #4 processing tone generator 1 khz, 0 dbu pink noise generator 0 dbu 24 output submixes 2 expansion submixes 26 automixing aux. Data 2 expansion s...

  • Page 9

    Reference manual rio rancho, nm 9 audio submix and data forward propagation audio final mix and data back propagation master slave slave audio submix and data forward propagation audio final mix and data back propagation a u tomatic mixing matr ix dm series processor master dm series processor slave...

  • Page 10

    Dm84 digital matrix processor lectrosonics, inc. 10 sharc is a registered trademark of analog devices , inc . Usb port rs-232 port prog i /o port micro controller prog i /o conn db25 lecnet 2 conn 1/ 8 '' jack front & rear usb b conn control signals 8 11 12 a/d input gain control pots output volume ...

  • Page 11

    Reference manual rio rancho, nm 11 input processing each input channel provides individual stages for gain, delay, filtering and compression. (see typical input signal processing blocks.) processing levels can be set up with the software gui provided with the unit. (details on the signal processing ...

  • Page 12

    Dm84 digital matrix processor lectrosonics, inc. 12 power of the mix the power of the mix is the reference used to deter- mine the gain to be applied to each individual output channel. In a multi-unit stacked configuration, this data is sent to the slaves from the master unit. Crosspoint gain crossp...

  • Page 13

    Reference manual rio rancho, nm 13 output signal processing stages each output channel provides a delay, nine filters, plus a compressor and limiter to idealize the channel for its function in the sound system. (see typical output signal processing block.) digital delay delay on the output signal is...

  • Page 14

    Dm84 digital matrix processor lectrosonics, inc. 14 dm84 controls and features dm84 - 8 inputs, 4 outputs front panel power on/off switch usb port gain control activity indicator usb port standard usb connector for setup and control of the dm from a windows 2000 or windows xp computer system with us...

  • Page 15

    Reference manual rio rancho, nm 15 rear panel dm84 - 8 inputs, 4 outputs power plug standard nema 5-15 three-pin power plug capable of accepting 100-240 vac, 47-63 hz. Rs-232 port a serials rs-232 interface is provided for setup and control via a computer, or for connecting rs-232 serial control dev...

  • Page 16

    Dm84 digital matrix processor lectrosonics, inc. 16 installing lecnet2 ™ software and usb driver part of the lecnet2software package is the control panels for the dm84. This graphic user interface (gui) is designed to allow easy setup and monitoring of the dm84 using a computer system running window...

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    Reference manual rio rancho, nm 17 4. Windows will search the cd for the driver and when it has found it, a dialog will likely open warning you that the driver has not passed windows logo testing. This is ok, click continue anyway. 5. When the driver installation is complete, the final page of the w...

  • Page 18

    Dm84 digital matrix processor lectrosonics, inc. 18 usb driver installation (windows 2000) first time installation when a lecnet2 device is connected to the computer system for the very first time, the windows found new hardware wizard automatically opens. Use the follow- ing procedure to install th...

  • Page 19

    Reference manual rio rancho, nm 19 firmware updates using the update wizard the control panel can be used to download firmware updates to the dm84. The update wizard guides you through the steps of the update process. Since a failed firmware update can leave the dm84 in an unusable state, it is impo...

  • Page 20

    Dm84 digital matrix processor lectrosonics, inc. 20 4. Enter the file name for the update in the path to update file field or click the browse button next to the filename field to locate the update file. If the browse button is clicked, the select dm84 update file dialog opens. If the file name was ...

  • Page 21

    Reference manual rio rancho, nm 21 the entire process will take 15 minutes or so. A notification message appears when the update is finished. Follow the instructions in the message to verify that the dm84 restarts with the updated firmware version. Click ok to dismiss the message. At this point the ...

  • Page 22

    Dm84 digital matrix processor lectrosonics, inc. 22 activity tab the activity tab provides an “at a glance” monitoring of input and output levels, when the dm84 is connected to a computer system. Dm84 system setup tabs the tab is divided into two functional sections: input channel activity/gain and ...

  • Page 23

    Reference manual rio rancho, nm 23 inputs tab the inputs tab is used to set up and control the inputs to the dm84. If connected to a dm84, changes made in this tab take effect immediately. As always, the changes name description gain control the input channel gain in db is displayed here and can be ...

  • Page 24

    Dm84 digital matrix processor lectrosonics, inc. 24 this tab contains a notebook of the six available input filter settings, with a separate page for each input channel. If connected to a dm84, changes made in this name description filter set notebook each input channel has a set of 6 filters that c...

  • Page 25

    Reference manual rio rancho, nm 25 this tab contains a notebook of input compressor settings, with a separate page for each input channel. If connected to a dm84, changes made in this tab take status compressor setup configuration amplitude response graph input select effect immediately. As always, ...

  • Page 26

    Dm84 digital matrix processor lectrosonics, inc. 26 name description amplitude response graph each input channel page contains a graph which displays three plots: • a fixed plot for the 1:1 amplitude response used for reference (dashed grey line) • the amplitude response of the compressor (orange li...

  • Page 27

    Reference manual rio rancho, nm 27 this tab contains controls to set the delay for each input channel. If connected to a dm84, changes made in this tab take effect immediately. In delay (input delay) tab name description delay controls the delay settings for the input channels are displayed here in ...

  • Page 28

    Dm84 digital matrix processor lectrosonics, inc. 28 this tab contains a notebook with two crosspoint matrix pages, one for the main matrix and one for the expan- sion matrix. If connected to a dm84, changes made in mix busses this tab take effect immediately. As always, the changes are not permanent...

  • Page 29

    Reference manual rio rancho, nm 29 name description crosspoint setting controls these controls are grouped together in a box whose title indicates the input channel and mix bus belonging to the currently selected matrix crosspoint. The controls in this group are: • gain (db) - the crosspoint gain in...

  • Page 30

    Dm84 digital matrix processor lectrosonics, inc. 30 the dm84 is designed to be an integral component of a dm series chain, so each of the audio output channels can be thought of as a processing pipeline whose input is controlled by a three position switch (matrix, pink noise or 1 khz tone). The out ...

  • Page 31

    Reference manual rio rancho, nm 31 this tab contains controls to set the delay for each output channel. If connected to a dm84, changes made in this tab take effect immediately. As always, the changes are not permanent unless the dm84 settings are stored to a preset in nonvolatile memory. Out delay ...

  • Page 32

    Dm84 digital matrix processor lectrosonics, inc. 32 this tab contains a notebook of the nine available output filter settings, with a separate page for each output channel. Six different filter types are available for each of the nine output filters. If connected to a dm84, changes filter type filte...

  • Page 33

    Reference manual rio rancho, nm 33 name description frequency response graph each output channel page contains a graph which displays two plots: • the frequency response of the currently selected output filter (red line) • the total frequency response for the output channel (blue line) the plot for ...

  • Page 34

    Dm84 digital matrix processor lectrosonics, inc. 34 this tab controls a high quality compressor that can be set up to control the dynamics of an output signal. The compressor is a “soft” knee type with adjustable thresh- old and time constant parameters. Also provided is a limiter with adjustable th...

  • Page 35

    Reference manual rio rancho, nm 35 name description limiter setup limiter parameters are set by the following numerical controls: • threshold - the limiter input level threshold is displayed here and can be adjusted from -80dbu to +20dbu. • time constant - the limiter time constant is displayed here...

  • Page 36

    Dm84 digital matrix processor lectrosonics, inc. 36 outputs tab this tab is used to set the output levels for the channel outputs from the dm84. If connected to a dm84, changes made in this tab take effect immediately. As always, the changes are not permanent unless the dm84 settings are stored to a...

  • Page 37

    Reference manual rio rancho, nm 37 name description output channel label output channels may be assigned a custom label to make it easier to understand a setup. For example, labels like zone 3 or cry room might usefully replace the default labels ch 1, ch 2, etc. To do this, right click on the chann...

  • Page 38

    Dm84 digital matrix processor lectrosonics, inc. 38 the dm84 has 11 programmable inputs which can be used to control a wide variety of dm84 functions. Depending on the assigned function, the inputs may be connected to momentary contact switches, toggle switches, or potentiometers. When used with a s...

  • Page 39

    Reference manual rio rancho, nm 39 name description programmable inputs notebook settings for the 11 programmable inputs are contained within a notebook, with one page per programmable input. The tabs along the bottom of the notebook are used to select one of the programmable inputs for setup. To se...

  • Page 40

    Dm84 digital matrix processor lectrosonics, inc. 40 name description programmable inputs notebook • momentary mute inputs (mmi) this function momentarily mutes one or more audio inputs in response to a contact closure. The channel is muted when the contact closure is made, and unmuted when it is bro...

  • Page 41

    Reference manual rio rancho, nm 41 name description the value may be changed in the same manner as the gain preset control. • rear panel gain - these read-only indicators display the current rear panel gain setting (in db) for each audio input channel. These are useful for monitoring the effects of ...

  • Page 42

    Dm84 digital matrix processor lectrosonics, inc. 42 name description • run a macro on close/open - active when there is a contact closure on programmable input. • momentary unmute inputs (ptt) - active when the audio inputs controlled by the program- mable input are unmuted. • monitor active preset ...

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    Reference manual rio rancho, nm 43.

  • Page 44

    Dm84 digital matrix processor lectrosonics, inc. 44 dm84 serial interface and general commands serial commands are delivered to the dm84 via the usb or rs-232 interfaces to allow remote control of the device. The command language is simple and intuitive to ease the task of programming. Wildcards the...

  • Page 45

    Reference manual rio rancho, nm 45 defpre (default preset) this command may be used as a query to determine the memory preset location used as the powerup default. It may also be used as an update to set the default preset. The data is an integer type in the range 0 to 24, where 0 has the special me...

  • Page 46

    Dm84 digital matrix processor lectrosonics, inc. 46 id (device id) this command may be used as a query to read the device id string. This is the "name" of the device used by the lecnet2 protocol and is always "dm84". The data is a string type. Example: request response query id? Ok "dm84" macro (mac...

  • Page 47

    Reference manual rio rancho, nm 47 predesc (preset description) this command may be used as a query to read the user defined preset description. It may also be used as an update to set the description. The data is a string type, with a limit of 60 characters. Note: string arguments in commands need ...

  • Page 48

    Dm84 digital matrix processor lectrosonics, inc. 48 update premsk=5 ok rank (rank in lecnet2 chain) this command may be used as a query to determine the rank of the unit within a chain in interconnected lecnet2 devices. For instance, in a group of 3 devices, the "top" or "master" unit will be consid...

  • Page 49

    Reference manual rio rancho, nm 49 dm84 audio input commands command description inact audio input activity status incl audio input clipping status indel audio input delay ingn audio input gain ingnfp audio input front panel gain iniv audio input phase invert status inlb audio input channel label in...

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    Dm84 digital matrix processor lectrosonics, inc. 50 dm84 adfe commands command description adfeen automatic digital feedback elimination enable adfefil automatic digital feedback elimination filter deployment termination: all commands are terminated with an ascii carriage return character (hex code ...

  • Page 51

    Reference manual rio rancho, nm 51 dm84 input compressor commands command description incpgn input compressor gain incpmug input compressor makeup gain incprat input compressor ratio incptc input compressor time constant incpthr input compressor threshold level termination: all commands are terminat...

  • Page 52

    Dm84 digital matrix processor lectrosonics, inc. 52 dm84 matrix crosspoint commands command description xpgn matrix crosspoint gain xpgnst matrix crosspoint gain step xpmode matrix crosspoint mix mode xpmt matrix crosspoint mute status xpmttog matrix crosspoint mute toggle termination: all commands ...

  • Page 53

    Reference manual rio rancho, nm 53 xpmode (crosspoint mix mode) this command may be used as a query to read the matrix crosspoint mix mode, or as an update to set the mode. The crosspoint is specified by using the 2 dimensional address syntax. Addresses for the first dimension (input channel) must b...

  • Page 54

    Dm84 digital matrix processor lectrosonics, inc. 54 dm84 audio output commands command description outdel audio output delay outgn audio output gain outgnfp audio output front panel gain outlb audio output channel label outlv audio output level (dbu rms) outmic audio output mic/line level status out...

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    Reference manual rio rancho, nm 55 outlb (output channel label) this command may be used as a query to read the output channel text label, or as an update to set the label. The output channel is specified by using the address syntax. Addresses must be in the range 1 to 4. The data type is string, wi...

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    Dm84 digital matrix processor lectrosonics, inc. 56 outsrc (output signal source) this command may be used as a query to read the output signal source status, or as an update to set the status. The output channel is specified by using the address syntax. Addresses must be in the range 1 to 4. The da...

  • Page 57

    Reference manual rio rancho, nm 57 dm84 output compressor commands command description outcpgn output compressor gain outcpmug output compressor makeup gain outcprat output compressor ratio outcptc output compressor time constant outcpthr output compressor threshold level termination: all commands a...

  • Page 58

    Dm84 digital matrix processor lectrosonics, inc. 58 dm84 output limiter commands command description outlmgn output limiter gain outlmtc output limiter time constant outlmthr output limiter threshold level termination: all commands are terminated with an ascii carriage return character ( hex code 0x...

  • Page 59

    Reference manual rio rancho, nm 59 dm84 programmable i/o commands command description prgin programmable input state prgindef programmable input definition prginundef programmable input un-definition prgout programmable output state prgoutdef programmable output definition prgoutht programmable outp...

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    Dm84 digital matrix processor lectrosonics, inc. 60 prgindef (programmable input definition) this command may be used as a query to read a programmable input definition, or as an update to modify the definition. The programmable input is specified by using the address syntax. Addresses must be in th...

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    Reference manual rio rancho, nm 61 functions and target values analog input gain control a sequence of zero or more integers in the range 1 to 8. These identify which input channels are to be controlled by the function. Increment input gain 1 db a sequence of zero or more integers in the range 1 to ...

  • Page 62

    Prgoutdef (programmable output definition) this command may be used as a query to read a programmable output definition, or as an update to modify the definition. The programmable output is specified by using the address syntax. Addresses must be in the range 1 to 8. The data type is array of intege...

  • Page 63

    Command description rpingn rear panel audio input gain rpingnmin rear panel audio input gain minimum rpingnpre rear panel audio input gain preset rpingnst rear panel audio input gain step rpoutgn rear panel audio output gain rpoutgnmin rear panel audio output gain minimum rpoutgnpre rear panel audio...

  • Page 64

    Rpingnst (rear panel input gain step change) this command is used as an update to step the gain by the amount specified, either up or down. The input channel is specified by using the address syntax. Addresses must be in the range 1 to 8. The data type is integer, in the range -6 to +6, representing...

  • Page 65

    Dm84 command grammar rules augmented bnf[1] rules for the lecnet2 command grammar: octet = %x00-ff ; char = %x01-7f ; any us-ascii character except nul (1 - 127) upalpha = %x41-5a ; any us-ascii uppercase letter "a".."z" loalpha = %x61-7a ; any us-ascii lowercase letter "a".."z" digit = %x31-39 ; an...

  • Page 66

    Rear panel control with hardware the dm84 processor has programmable inputs which can be used to control a wide variety of functions. Depending on the function assigned to them, these programmable inputs may be connected to momentary contact switches, toggle switches, or potentiometers. When used wi...

  • Page 68: Limited One Year Warranty

    June 22, 2006 581 laser road ne • rio rancho, nm 87124 usa • www.Lectrosonics.Com (505) 892-4501 • (800) 821-1121 • fax (505) 892-6243 • sales@lectrosonics.Com limited one year warranty the equipment is warranted for one year from date of purchase against defects in materials or workmanship provided...