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Venue/LecNet2™ Software Installer

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This file contains the installer for the LecNet2 software package.

Unzip this file to a temporary folder on your hard drive, and open this folder using Windows File Explorer. Run Setup.exe to install the LecNet2 Software Programs.

Release 29Jan2013

This release contains an update to VR Control Panel (v3.2) which adds support for the new "Mode 7" analog compatibility mode. There are no other changes.

The LecNet2 Software Installer installs the following programs:

Model: Version:
DM812 Control Panel 1.5.2
DM1612 Control Panel 1.5.2
DM1624 Control Panel 1.5.2
DM84 Control Panel 1.3.2
DMTH4 Control Panel 1.2.1
DMPA12 Control Panel 1.0.2
VR Control Panel 3.2
Command Terminal 1.3.1
Net Server 1.1.3
LectroLink Utility 1.2
D4 Update Utility 1.0

 This is the installer included in the LecNet2 Installation Disk release of  29Jan2013.

Click here to download

Venue/LecNet2™ USB Driver Installers

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PLEASE NOTE: These drivers are intended for NEW 32-bit and 64-bit Windows installations. DO NOT install the new 32-bit USB driver package over an existing, working installation on 32-bit Windows XP or Vista PCs - this will cause a conflict between old and new 32-bit driver packages which will prevent USB connections from working correctly.

This file contains the installers for the LecNet2 USB drivers.

Unzip this file to a temporary folder on your hard drive, and open this folder using Windows File Explorer.

To install the 32-bit USB driver package, run Install32-bitUsbDrivers.exe. To install the 64-bit USB driver package, run Install64-bitUsbDrivers.exe.

These are the installers included in the LecNet2 Installation Disk release of  14May2012.

Click here to download

Venue/LecNet2™ System Design Kit Installer

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This zip archive file contains the installer for the LecNet2 System Design Kit. Unzip this file to a temporary location on your hard drive and run the installer (setup.exe).

The Design Kit includes:

  • LecNet2 System Design Guide
    This contains a comprehensive discussion of topics including automatic mic mixing, teleconferencing, mix-minus speaker zoning, and control systems for installed sound systems. It presents several example sound system designs:
    • Boardroom/Conference Room
    • Courtroom System
    • City Council Chamber
    • Collegiate Distance Learning Classroom
    • Multi-room Combining System
    • Worship Center
    The kit includes Visio drawings for each example system as well as the supporting preset and macro files.
  • PagNag Calculator Program
    This handy program is described in the Design Guide and is used for installed sound system acoustic calculations.
  • System Design drawings and templates
    These include:
    • Front and rear panel elevations for all members of the LecNet2 product family in multiple formats: .vsd, .dwg, .wmf, .eps, and more.
    • Visio stencil files for all members of the LecNet2 product family.
    • A Visio template file with drawing parameters, scales, and all stencils needed for LecNet2 system design in Visio.

The Design Kit is also included in the LecNet2 Installation Disk.

Click here to download

Venue/LecNet2™ Firmware Updates

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Firmware updates can be installed into a LecNet2 product using the Control Panel software (running on your PC or laptop computer) and a USB cable. The latest firmware for each product can be downloaded using the links below. These files are zip archives, and must be unzipped before use.

Be sure that you know which Venue Receiver model you have before attempting to update firmware, so that you select the correct download! The "Narrowband" Venue Receiver is the original model covering 2 frequency "blocks". The recently introduced "Wideband" models cover blocks 21 - 29 (VRMWB) or blocks 470 - 26 (VRMWBL). The "944 MHz" model (VRM944) covers only the special part 74 frequency band starting at, well, 944 MHz. Contact the factory for assistance if you have any doubt about the identity of a Venue Receiver.

Click here for the LecNet2 firmware change history.

Click here to download

Venue/LecNet2™ Crestron® Modules

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Crestron modules and AMX code for the DM series automixers and telephone hybrid are currently available for download.

CRESTRON DM Series Automixers and Telephone Hybrid modules:

Each of the zip files below contain the Crestron archive, an example SIMPL .smw file, the associated VT-Pro E touchpanel file in XPanel format, an .xexe PC executable for quick testing and module documentation.

These modules will be included within the SIMPL windows library in the near future.

Click here for installation instructions. The DM series modules will work with all of the DM series matrix mixers including: DM1624, DM1612, DM812 and DM84.

  • DM Series (Single Channel and Stereo Control) Modules
    Version 1.0 - updated 9Oct2007
    • DM series Single Input Gain
    • DM series Single Rp Input Gain
    • DM series Single Output Gain
    • DM series Single Rp Output Gain
    • DM series Stereo Input Gain
    • DM series Stereo Rp Input Gain
    • DM series Stereo Output Gain
    • DM series Stereo Rp Output Gain
    • DM series Crosspoint Gain
  • DM1624 (Multiple Channel Control) Modules
    Version 1.0 - updated 9Oct2007
    • DM1624 Multi Input Gain
    • DM1624 Multi Rp Input Gain
    • DM1624 Multi Output Gain
    • DM1624 Multi Rp Output Gain
  • DM1612 (Multiple Channel Control) Modules
    Version 1.0 - updated 9Oct2007
    • DM1612 Multi Input Gain
    • DM1612 Multi Rp Input Gain
    • DM1612 Multi Output Gain
    • DM1612 Multi Rp Output Gain
  • DM812 (Multiple Channel Control) Modules
    Version 1.0 - updated 9Oct2007
    • DM812 Multi Input Gain
    • DM812 Multi Rp Input Gain
    • DM812 Multi Output Gain
    • DM812 Multi Rp Output Gain
  • DM84 (Multiple Channel Control) Modules
    Version 1.0 - updated 9Oct2007
    • DM84 Multi Input Gain
    • DM84 Multi Rp Input Gain
    • DM84 Multi Output Gain
    • DM84 Multi Rp Output Gain
  • DMTH4 (Basic Control) Module
    Version 1.0 - updated 9Oct2007
    • DMTH4 Basic Control

Send email to Applications Engineer This email address is being protected from spambots. You need JavaScript enabled to view it. if you have any questions, or call him at (505)994-9825.

Crestron is a registered trademark of Crestron Electronics, Inc.

Click here to download

Venue/LecNet2™ AMX Netlinx® Code

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AMX code for the DM series automixers and telephone hybrid are currently available for download.

AMX code for DM Series Automixers and Telephone Hybrid modules:

The zip file below contain the AMX Netlinx source code, TP4 Design touchpanel and instructions. the file is in AMX archive format for your convenience.

  • AMX Code
    Version 1.0 - updated 9Oct2007
    • AMX Netlinx archive and Touchpanel files

Send email to Applications Engineer This email address is being protected from spambots. You need JavaScript enabled to view it. if you have any questions, or call him at (505)994-9825.

AMX and Netlinx are registered trademarks of AMX Corporation.

Click here to download

Latest Firmware Update News...

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17Apr2013 - Updated firmware has been released for the Narrowband Venue Modular Receiver System. New version 5.5 for VR includes:

  • Added a new analog compatibility mode: "Mode 7".
  • Enhanced squelch system to ignore supersonic emissions from transmitters.

19Mar2013 - Updated firmware has been released for the Wideband Venue Modular Receiver System. New version 5.5 for VRMWB and VRMWBL includes:

  • Added a new analog compatibility mode: "Mode 7".
  • Enhanced squelch system to ignore supersonic emissions from transmitters.

10July2012 - Updated firmware has been released for the Wideband Venue Modular Receiver System. New version 5.3 for VRMWB and VRMWBL includes:

  • Improved auto-detection of receiver module frequency "block".

10July2012 - Updated firmware has been released for the Narrowband Venue Modular Receiver System. New version 5.2 for VR includes:

  • Improved auto-detection of receiver module frequency "block".

16May2012 - Updated firmware has been released for the Wideband Venue Modular Receiver System . New version 5.2 for VRMWB and VRMWBL includes:

  • Added support for new VRPanel version 3.1 for monitoring Talk Back activity.
  • Transmitter battery status now more accurate for lithium batteries.
  • Fixed bug causing intermittent failure to detect problems with newer modules wit the LMX2485 PLL.

16May2012 - Updated firmware has been released for the Narrowband Venue Modular Receiver System. New version 5.1 for VR includes:

  • Added Talk Back functionality for use with new HH transmitter.
  • Added support for new VRPanel version 3.1 for monitoring Talk Back activity.
  • Fixed a minor timing bug that resulted in occasional jumpy rotary control.
  • Transmitter battery status now more accurate for lithium batteries.
  • Version 5.0 is necessary for newer modules built with the LMX2485 PLL, and is fully backward compatible with older style modules.

20February2012 - Updated firmware has been released for the Venue Modular Receiver System export models for the EU market. New version 5.1 for VR/E01-L, VR/E01-M and VR/E01-H includes:

  • Fixed a bug that prevented the selection of ratio diversity.

20February2012 - Updated firmware has been released for the Wideband Venue Modular Receiver System. New version 5.1 for VRMWB and VRMWBL includes:

  • Fixed a bug that prevented the selection of ratio diversity.

9January2012 - Updated firmware has been released for the Venue Modular Receiver System export models for the EU market. New version 5.0 for VR/E01-L, VR/E01-M and VR/E01-H includes:

  • Added Talk Back functionality for use with new HH transmitter.
  • Fixed a minor timing bug that resulted in occasional jumpy rotary control.
  • Version 5.0 is necessary for newer modules built with the LMX2485 PLL, and is fully backward compatible with older style modules.

9January2012 - Updated firmware has been released for the Wideband Venue Modular Receiver System . New version 5.0 for VRMWB and VRMWBL includes:

  • Added Talk Back functionality for use with new HH transmitter.
  • Fixed a minor timing bug that resulted in occasional jumpy rotary control.
  • Version 5.0 is necessary for newer modules built with the LMX2485 PLL, and is fully backward compatible with older style modules.

21February2011 - Updated firmware has been released for the Wideband Venue Modular Receiver System. New version 2.3 for VRMWB and VRMWBL includes:

  • Improved module detection algorithm.

21February2011 - Updated firmware has been released for the Venue Modular Receiver System export models for the EU market. New version 1.6 for VR/E01-L, VR/E01-M and VR/E01-H includes:

  • Improved module detection algorithm.
  • Added support for block 606.

3January2011 - Updated firmware has been released for the Narrowband Venue Modular Receiver System. New version 4.4 for VRincludes:

  • Improved diversity and noise squelch systems for substantially quieter operation under moderate to weak RF conditions.

22December2010 - Updated firmware has been released for the D4 Digital Wireless System. New version 2.4 for D4R includes:

  • D4R - Fixed a problem causing a sudden, very strong signal (e.g. transmitter turned on right next to receiver) to sometimes result in noisy audio until the antennas were moved.

10June2010 - Updated firmware has been released for the D4 Digital Wireless System. New version 2.3 for D4R includes:

  • D4R - When unit was power cycled rapidly, analog outputs 3 and 4 would not always recover -- now fixed.

25May2010 - Updated firmware has been released for the Venue Modular Receiver System export models for the EU market. New version 1.4 for VR/E01-L, VR/E01-M and VR/E01-H includes:

  • Added 110, 300, 'mode 3', and 'mode 6' series compatibility modes.
  • Improved diversity and noise squelch systems for substantially quieter operation under moderate to weak RF conditions.

10February2010 - Updated firmware has been released for the D4 Digital Wireless System . New version 2.2 for D4R and D4T includes:

  • D4R - Corrected problem wherein jacks 3 and 4 weren't completely muted in two-channel receiving mode. Also, now exploring the menu options for two- and four-channel receiving modes never results in a changed tuning frequency, provided the mode is restored to its original setting prior to leaving the menu.
  • D4T - Now, exploring the menu options for two- and four-channel receiving modes never results in a changed tuning frequency, provided the mode is restored to its original setting prior to leaving the menu.

12November2009 - Updated firmware has been released for the D4 Digital Wireless System . New version 2.1 for D4R and D4T includes:

  • D4R - Modified LCD timings to avoid stray pixels. Changed the word "Channel" to "Frequency" on the Tuning screen, to avoid confusion with the use of the word "Channel" to refer to audio channels.
  • D4T - Modified LCD timings to avoid stray pixels. Changed the word "Channel" to "Frequency" on the Tuning screen, to avoid confusion with the use of the word "Channel" to refer to audio channels. Channel select buttons 3&4 are no longer erroneously active in 2 channel mode.

18September2009 - Updated firmware has been released for the Wideband Venue Modular Receiver System . New version 2.0 for VRMWB and VRMWBLincludes:

  • Fixed register initialization error that could in rare cases cause unit to fail to run on powerup.

18September2009 - Updated firmware has been released for the Venue Modular Receiver System export models for the EU market. New version 1.3 for VR/E01-L, VR/E01-M and VR/E01-H (wideband) includes:

  • Fixed register initialization error that could in rare cases cause unit to fail to run on powerup.

18August2009 - Updated firmware has been released for the Venue Modular Receiver System. New versions are:

  • 1.9 for VRMWB and VRMWBL (wideband)
  • 4.3 for original VRM (narrowband)

The changes include:

  • Fixed bug in 'combined' diversity modes resulting in reduced dynamic range (frequency and ratio diversity combining 2 receiver modules for a single audio output).
  • Limited occurrence of 'Check Frequency' messages.
  • Bug fixes and further sonic improvement for Mode 3.

18August2009 - Updated firmware has been released for the Venue Modular Receiver System export models for the EU market. New version 1.2 for VR/E01-L, VR/E01-M and VR/E01-H includes:

  • Fixed bug in 'combined' diversity modes resulting in reduced dynamic range (frequency and ratio diversity combining 2 receiver modules for a single audio output).
  • Limited occurrence of 'Check Frequency' messages.

29July2009 - Updated firmware has been released for the DMTH4 Digital Telephone Hybrid. New version 2.2.0 introduces:

  • The Acoustic Echo Cancellation (AEC) implementation in versions 2.1.1 and higher is not working correctly. Customers report that AEC is not working well, and that the ERL and ERLE meters in the GUI read zero at all times, whether AEC is enabled or not. This version corrects the bug, and units with firmware versions 2.1.1 through 2.1.6 should be upgraded to 2.2.0.

6July2009 - Updated firmware has been released for the DMTH4 Digital Telephone Hybrid. New version 2.1.6 introduces:

  • Some multi-unit systems have been reported to intermittently fail when the units in the system (rack) are powered up simultaneously. This can happen in systems consisting of more that one LecNet2 product type mixed together, and is caused by differences in startup timing between one device and another. This problem can be eliminated by allowing the individual units in such a system to start up in a time sequenced manner. To do this a firmware revision introduces a programmable start-up delay is introduced in this firmware revision. The delay is in multiples of 2 seconds and is programmed using the new "seq" (sequence) command. This feature is active for slave units only, and necessary only for DM84, DMTH4 and DMPA12 models. For example, by setting seq to "1" for slave #1, "2" for slave #2 etc. the devices will start up at 2 second intervals after the rack is powered up.

6July2009 - Updated firmware has been released for the DM84 Digital Matrix Processor. New version 1.2.9 includes these changes:

  • Some multi-unit systems have been reported to intermittently fail when the units in the system (rack) are powered up simultaneously. This can happen in systems consisting of more that one LecNet2 product type mixed together, and is caused by differences in startup timing between one device and another. This problem can be eliminated by allowing the individual units in such a system to start up in a time sequenced manner. To do this a firmware revision introduces a programmable start-up delay is introduced in this firmware revision. The delay is in multiples of 2 seconds and is programmed using the new "seq" (sequence) command. This feature is active for slave units only, and necessary only for DM84, DMTH4 and DMPA12 models. For example, by setting seq to "1" for slave #1, "2" for slave #2 etc. the devices will start up at 2 second intervals after the rack is powered up.

6July2009 - Updated firmware has been released for the DMPA12 DSP Power Amplifier. New version 1.1.0 includes these changes:

  • Some multi-unit systems have been reported to intermittently fail when the units in the system (rack) are powered up simultaneously. This can happen in systems consisting of more that one LecNet2 product type mixed together, and is caused by differences in startup timing between one device and another. This problem can be eliminated by allowing the individual units in such a system to start up in a time sequenced manner. To do this a firmware revision introduces a programmable start-up delay is introduced in this firmware revision. The delay is in multiples of 2 seconds and is programmed using the new "seq" (sequence) command. This feature is active for slave units only, and necessary only for DM84, DMTH4 and DMPA12 models. For example, by setting seq to "1" for slave #1, "2" for slave #2 etc. the devices will start up at 2 second intervals after the rack is powered up.

30June2009 - Updated firmware has been released for the Venue Modular Receiver System family of products.

  • Wideband Venue Receiver (VRMWB, VRMWBL): New version 1.8includes these changes:
    • Module detection algorithm modified to no longer continuously check for new modules after powerup, which was resulting in a slight "tic" being heard in some units. It will still detect the removal of modules during operation.
    • Channel indicator in custom tuning mode now displayed in hexadecimal rather than decimal.
  • 944 MHz Venue Receiver (VRM944): New version 1.2includes these changes:
    • Fixed a bug that would, on occasion, incorrectly draw diversity pairs between rx's 2,3 & 4,5.
    • Modify transmitter battery status display to correct inaccuracy in AA lithium warning threshold.

21April2009 - Updated firmware has been released for the DM1624, DM1612 and DM812 Digital Matrix Processors. New version 1.6.3 includes:

  • Crosspoints are muted during to preset recall to minimize audio artifacts heard in outputs in multi-unit systems. This solves a problem where preset changes on slave units were resulting in artifacts (caused by input gain changes) being forward propagated thru the DANI bus and heard on master unit outputs.

18December2008 - Updated firmware has been released for the DM1624, DM1612 and DM812 Digital Matrix Processors. New version 1.6.2 includes:

  • Low voltage detect ("brownout") parameters adjusted to prevent occasional boot-up failure problems observed in some units. The parameter change compensates for manufacturing variations in certain component parts - units exhibiting no trouble don't need to be updated.

18December2008 - Updated firmware has been released for the DMTH4 Digital Telephone Hybrid. New version 2.1.1 introduces:

  • Low voltage detect ("brownout") parameters adjusted to prevent occasional boot-up failure problems observed in some units. The parameter change compensates for manufacturing variations in certain component parts - units exhibiting no trouble don't need to be updated.

2September2008 - Updated firmware has been released for the DM84 Digital Matrix Processor. New version 1.2.7 includes these changes:

  • Fixed bug in front panel gain controls where gain value would sometimes seem "stuck" at some value when the gain control knob was turned.

2September2008 - Updated firmware has been released for the DMPA12 DSP Power Amplifier. New version 1.0.4 includes these changes:

  • Fixed bug in front panel gain controls where gain value would sometimes seem "stuck" at some value when the gain control knob was turned.

29July2008 - Updated firmware has been released for the Narrowband Venue Modular Receiver System family of products. New version 4.2 includes these changes:

  • No longer draws a speaker icon, antenna icon, and pilot tone icon in the main screen when receivers of a diversity pair are not installed.
  • Fixed a bug that would, on occasion, incorrectly draw diversity pairs between receivers 2,3 & 4,5.
  • Smart Tune will no longer tune a receiver to the unavailable U.S. frequencies between 608 - 614 MHz.
  • Corrected AA lithium warning threshold voltage.

15July2008 - Updated LecNet2 software has been released:

  • The control panel program for the Venue Receiver (and VRFIELD) has been updated to include support for the new "Low" frequency blocks: 470, 19 and 20. The new control panel version is 2.3, and is backward compatible with all Venue Receivers made to date.

    The new blocks will be available in a "Low" version of the existing Wideband Venue Receiver covering blocks 470 through 26, rather than blocks 21 through 29. "VRMWBL" will be the model number for this product.

    Use installer version 1.3.7 to install the updated LecNet2 programs to your PC or laptop. This installer is also included in the LecNet2 CD release of 15Jul2008.

15July2008 - Updated firmware has been released for the Wideband Venue Modular Receiver System . New version 1.6 includes these changes:

  • Introduces support for the new "Low" block version of the Wideband product, which covers blocks 470 - 26. "VRMWBL" will be the model number for this new product. All Wideband Venue Receiver versions will use the same firmware image although the range of blocks that they cover is determined by their hardware configuration, which cannot be changed.
  • Smart Tune will no longer tune a receiver to the unavailable U.S. frequencies between 608 - 614 MHz (Radio Astronomy Band).
  • Fixed bug where AA lithium battery warning threshold was incorrect.
  • Fixed bug where Tx-Battery timer failed to reset to 0 after 10 hours elapsed time.

15July2008 - Updated firmware has been released for the DM84 Digital Matrix Processor. New version 1.2.6 includes these changes:

  • Fixed bug in rpoutgnst command where gain was incorrectly adjusted.
  • Fixed bug in front panel gain controls where gain value would randomly jump up or down 1 dB in certain positions of the gain control knob.

15July2008 - Updated firmware has been released for the DMPA12 DSP Power Amplifier. New version 1.0.3 includes these changes:

  • Fixed bug in rpoutgnst command where gain was incorrectly adjusted.
  • Fixed bug in front panel gain controls where gain value would randomly jump up or down 1 dB in certain positions of the gain control knob.

27March2008 - Updated firmware has been released for the DM1624, DM1612 and DM812 Digital Matrix Processors. New version 1.6.1 includes:

  • Input and output compressors have been improved to eliminate faint pops and ticks heard under certain input signal conditions.

27March2008 - Updated firmware has been released for the Venue Modular Receiver System family of products.

  • Narrowband Venue Receiver (VR): New version 4.1includes these changes:
    • Fixed bug where frequencies selected using the SmartTune™ feature were not being saved on powerdown.
  • 944 MHz Venue Receiver (VRM944): New version 1.1includes these changes:
    • Fixed bug where frequencies selected using the SmartTune™ feature were not being saved on powerdown.

11February2008 - Updated LecNet2 software has been released:

  • The control panel program for the Venue Receiver (and VRFIELD) has been updated to include support for the new "Wideband" and "944 MHz" versions of the product. The new version is 2.2, and is backward compatible with all Venue Receivers made to date (the original 50 MHz wide or "Narrowband" model). The Wideband model covers the entire UHF band from 537 to 768 MHz in a single unit, and the 944 MHz covers the 944 to 952 MHz range.
  • The control panel programs for DM1624, DM1612, DM812, DM84 and DMTH4 have been updated to fix a bug in the Macro Recorder. The problem was limited to the "Expansion" outputs (mix busses), and resulted in incorrect commands being generated to changes to crosspoint gain, mute, or mix mode parameters. The DM1624, DM1612, and DM812 control panels are now version 1.5.2, the DMTH4 control panel is now version 1.2.1, and the DM84 control panel is now version 1.3.2.

    Use installer version 1.3.6 to install the updated LecNet2 programs to your PC or laptop. This installer is also included in the LecNet2 CD release of 11Feb2008.

4February2008 - Updated firmware has been released for the Venue Modular Receiver System . New version 4.0 includes these changes:

  • Added SmartTune™ feature. Also improved response to fast keypresses.

16October2007 - Updated firmware has been released for the DMTH4 Digital Telephone Hybrid. New version 2.1.0 introduces:

  • Important: Because of a source code control error, the improved AEC (acoustic echo cancellation) algorithm suppposedly released in version 2.0.0 was not actually incorporated in that version, nor was it present in version 2.0.1. This omission is not obvious in many installations since the improvements to the AEC are noticable only under certain conditions, mainly large conference rooms with a large number of microphones or with very poor acoustics. Version 2.1.0 contains the "lost" AEC improvements with no other changes. We recommend that units running version 2.0.0 or 2.0.1 be upgraded to 2.1.0 if you need the improved AEC, and offer a very sincere apology for this unfortunate mistake!

31July2007 - Updated firmware has been released for the DMTH4 Digital Telephone Hybrid. New version 2.0.1 introduces:

  • The duration of the hookswitch "flash" (momentary interruption of loop current during a phone call) is now programmable from 100 to 2500 milliseconds. This is done using a new serial command, "telflashtm". This can be useful for dealing with certain PBXs which don't respond reliably to the default 500 msec hookswitch flash, but are ok with a longer flash time (in one case 700 msec did the trick). This is a global setting, changes take effect immediately for all presets.

30June2007 - Updated LecNet2 software has been released:

  • The control panel programs for DM1624, DM1612, DM812, DM84 and DMPA12 have been updated to fix the "lost labels" bug. When saving device settings to a disk file, input and output channel labels were not being written out to the file under certain conditions. The DM1624, DM1612, and DM812 control panels are now version 1.5.1, the DM84 control panel is now version 1.3.1, and the DMPA12 control panel is now version 1.0.2.

    Use installer version 1.3.4 to install the updated LecNet2 programs to your PC or laptop. This installer is also included in the LecNet2 CD release of 30Jun2007.

12June2007 - Updated firmware has been released for the DM84 Digital Matrix Processor. New version 1.2.5 includes these changes:

  • Fixed bug causing unit to intermittently crash when Automatic Digital Feedback Elimination (ADFE) is enabled and the unit is configured as a master in a single or multi-unit system.

8June2007 - Updated LecNet2 software has been released:

  • The control panel programs for DM1624, DM1612, DM812, DM84 and DMTH4 have been updated. In the mix matrix, multiple crosspoints can now be selected using CTRL-left click or SHIFT-left click (as in a spreadsheet program). Once a multiple selection has been made, setting changes made to one of the crosspoints in the group will be applied to all. This is very convenient for controlling a set of crosspoints as a group.
  • Matrix crosspoint mix mode settings are now indicated by an icon superimposed on the crosspoint button. The distribution of different mix modes within the matrix is now visible "at a glance":

    Btn Green Auto Mix Mode
    Btn Green Dir Direct Mix Mode
    Btn Green Ovr Override Mix Mode
    Btn Green Bkg Background Mix Mode
    Btn Green Ph Phantom Mix Mode

    Use installer version 1.3.3 to install the updated LecNet2 programs to your PC or laptop. This installer is also included in the LecNet2 CD release of 7Jun2007.

17May2007 - Updated firmware has been released for the DMTH4 Digital Telephone Hybrid. New version 2.0.0 introduces:

Our "2nd generation" acoustic echo cancellation system! This version bring new and improved acoustic echo cancellation (AEC) algorithms to the DMTH4. These innovations prevent divergence in "double-talk" situations and generally improve the performance of the system even when levels of local noise are high. The benefits include:

  • Dynamic convergence rate control - The echo canceller accurately discriminates between residual echo and local noise in the far side transmit signal and using this information to adjust the convergence rate "on the fly" to maximize depth of cancellation (ERLE).
  • Convergence regardless of system ERL - The echo canceller will converge even with a negative Echo Return Loss (ERL) in systems where the far side returns more echo level than the original system.
  • Convergence maintained even during "double talk" - An intelligent adaptive filter controller prevents a converged echo cancellation filter from diverging in double talk situations.

We'd like to extend hearty thanks to Ken Lewis of Sight N Sound Design for his assistance and advice during the development and testing process!

15May2007 - Updated firmware has been released for the DM84 Digital Matrix Processor. New version 1.2.4 includes these changes:

  • Fixed bug causing unit to intermittently crash on power up when configured as a slave in a multi-unit system.

15May2007 - Updated firmware has been released for the DMPA12 DSP Power Amplifier. New version 1.0.2 includes:

  • Fixed bug causing unit to intermittently crash on power up when configured as a slave in a multi-unit system.

24April2007 - Updated firmware has been released for the DMTH4 Digital Telephone Hybrid. New version 1.4.0 includes:

  • The Acoustic Echo Canceller (AEC) has been improved. This change eliminates intermittent "freeze ups" of the AEC under conditions of low ERL (room "gain" is high). The effect of the convergence rate control is more pronounced, but its function is unchanged - the higher the room "gain", the lower (slower) the rate for best performance.
  • The preset change sequence has been improved to ensure that no pops or clicks are heard when switching FROM a preset where one or more outputs are driven by the pink noise generator TO a preset where those outputs are driven by signals from the mixing matrix.

12April2007 - Updated firmware has been released for the DM1624, DM1612 and DM812 Digital Matrix Processors. New version 1.5.7 includes:

  • The preset change sequence has been improved to ensure that no pops or clicks are heard when switching FROM a preset where one or more outputs are driven by the pink noise generator TO a preset where those outputs are driven by signals from the mixing matrix.

12April2007 - Updated firmware has been released for the DM84 Digital Matrix Processor. New version 1.2.3 includes these changes:

  • The preset change sequence has been improved to ensure that no pops or clicks are heard when switching FROM a preset where one or more outputs are driven by the pink noise generator TO a preset where those outputs are driven by signals from the mixing matrix.

11April2007 - Updated firmware has been released for the DMPA12 DSP Power Amplifier. New version 1.0.1 includes:

  • The preset change sequence has been improved to ensure that no pops or clicks are heard when switching FROM a preset where one or more outputs are driven by the pink noise generator TO a preset where those outputs are driven by signals from the mixing matrix.

16March2007 - Updated firmware has been released for the DM1624, DM1612 and DM812 Digital Matrix Processors. New version 1.5.6 includes:

  • The "phantom" mix mode behavior has been modified so that phantom inputs more aggressively capture system gain from the other inputs on the same mix bus. Phantom mix mode is used in large mix-minus conference room applications to reduce coupling between active microphones and immediately adjacent speaker zones.

7March2007 - Updated firmware has been released for the Venue Modular Receiver System . New version 3.9 includes these changes:

  • Corrects an overflow error that caused excessive distortion in 200 Series emulation mode when the 200 series transmitter was in extreme limiting.

7February2007 - Updated firmware has been released for the DM84 Digital Matrix Processor. New version 1.2.2 includes these changes:

  • Fixed bug causing "don't change" value (99, used in serial commands) to not work as expected for the input and output mute updates "inmt" and "outmt". Rather than leaving the mute status unchanged, specifying a value of "99" caused the value to be updated to "1".

28December2006 - Updated LecNet2 software has been released:

  • The control panel programs for all LecNet2 products have been tweaked to install and run correctly on the new Windows Vista™ operating system.
  • Documentation and USB driver support is included for the new VR Field Battery-Powered Modular Receiver.
  • Control Panel program and USB driver support is included for the new DMPA12 - 12 Channel DSP Power Amplifier.

    Use installer version 1.3.1 to install the updated LecNet2 programs to your PC or laptop. This installer is also included in the LecNet2 CD release of 28Dec2006.

18December2006 - Updated firmware has been released for the DM84 Digital Matrix Processor. New version 1.2.1 includes these changes:

  • The Macro Language facility of the DM84 has been greatly enhanced! New features such as conditional logic, loops, and user-defined variables offer new power and flexibility in controlling the DM84 using Macros. The new Macro Language features complement the Rear Panel Control system to allow sophisticated control of the DM84 using contact closures and potentiometers. Control using 3rd party systems such as AMX, Crestron, or Extron devices becomes even more straightforward now that complicated logic can be isolated within macros in the DM84, keeping it out of the controller program itself. The result is easier program maintenance and faster execution. Our resident Applications Engineer This email address is being protected from spambots. You need JavaScript enabled to view it. will be happy to discuss with you these enhancements and their potential applications.
  • Version 1.2.1 supersedes version 1.2.0 released on 14 December 2006. It fixes a bug causing macro lines with multiple instructions to fail when a loop or conditional was present in any position other than the final position in the list of instructions.

15September2006 - Updated LecNet2 software has been released:

  • The control panel program for the Venue Modular Receiver System has been updated to provide enhanced offline editing functionality and more readable (larger) receiver names in main display window. The new version is 1.7and is compatible with all previous firmware versions.

    Use installer version 1.2.5 to install the updated LecNet2 programs to your PC or laptop. This installer is also included in the LecNet2 CD release of 15Sept2006.

24August2006 - Updated firmware has been released for the DM84 Digital Matrix Processor. New version 1.0.5 includes these changes:

  • Fixed bug affecting channels subject to "analog" rear panel gain control - when a preset change was made the channel would be "stuck" at the rear panel gain "preset" value until the control pot was moved.

24August2006 - Updated firmware has been released for the DM1624, DM1612 and DM812 Digital Matrix Processors. New version 1.5.5 includes:

  • Fixed bug affecting channels subject to "analog" rear panel gain control - when a preset change was made the channel would be "stuck" at the rear panel gain "preset" value until the control pot was moved.

24August2006 - Updated firmware has been released for the DMTH4 Digital Telephone Hybrid. New version 1.3.7 includes:

  • Fixed bug affecting channels subject to "analog" rear panel gain control - when a preset change was made the channel would be "stuck" at the rear panel gain "preset" value until the control pot was moved.

11August2006 - Updated firmware has been released for the DM84 Digital Matrix Processor. New version 1.0.4 includes these changes:

  • Fixed bug causing transfers of macro data *from* the DM84 *to* the GUI macro editor to fail for large macros. The bug did not affect the macro data stored in nonvolatile memory, only the ability of the GUI macro editor to read it back out - so macros stored in the DM84 worked normally. Also, the bug did not affect the transfer of macro data *from* the GUI *to* the DM84, so there was no problem with the process of composing new macros in the macro editor and then storing them to the DM84 nonvolatile memory.

18July2006 - Updated firmware has been released for the DM1624, DM1612 and DM812 Digital Matrix Processors. New version 1.5.4 includes:

  • The communications system has been reworked to better support simultaneous use of USB and RS232 ports by the GUI control panel and a third party serial control system.
17July2006 - Updated firmware has been released for the DMTH4 Digital Telephone Hybrid. New version 1.3.6 includes:
  • The communications system has been reworked to better support simultaneous use of USB and RS232 ports by the GUI control panel and a third party serial control system.
  • Fixed bug in which preset recall failed to update the TEL input gain.

14July2006 - Updated LecNet2 software has been released:

  • The control panel program for the new DM84 Digital Matrix Processor has been updated to fix a bug affecting the "front panel mute" feature (changes made to the front panel mute status for one or more channels sometimes did not get communicated to the DM84 under control). The new version is 1.0.3and is compatible with all previous firmware versions.

    Use installer version 1.2.3 to install the updated LecNet2 programs to your PC or laptop. This installer is also included in the LecNet2 CD release of 14July2006.

14July2006 - Updated firmware has been released for the DM84 Digital Matrix Processor. New version 1.0.3 includes these changes:

  • The communications system has been reworked to better support simultaneous use of USB and RS232 ports by the GUI control panel and a third party serial control system.
  • Fixed bug causing AMX Duet "Dynamic Discovery" support to fail.

22June2006 - Updated LecNet2 software has been released:

  • The control panel program for the new DM84 Digital Matrix Processor has been updated to make it possible to enable/disable the front panel muting feature (if enabled, then turning a front panel gain control to the fully counter-clockwise position mutes the channel). The new version is 1.0.2 and is compatible with all previous firmware versions.
  • The control panel program for the Venue Modular Receiver System has been updated to make it easier to access the Custom Channels feature. Now a right click while holding down any CTRL key will bring up an expanded context menu with the the Custom Channels option available. The new version is 1.6and is compatible with all previous firmware versions.

    Use installer version 1.2.2 to install the updated LecNet2 programs to your PC or laptop. This installer is also included in the LecNet2 CD release of 22June2006.

5June2006 - LecNet2 System Design Kit is now available:

  • Download the Design Kit installer.
  • Read the included System Design Guide online.

5June2006 - Updated LecNet2 software has been released:

  • The control panel program for the new DM84 Digital Matrix Processor is introduced. The new version is 1.0.1 and is compatible with all previous firmware versions.
  • The control panel programs for the  DM1624, DM1612 and DM812 Digital Matrix Processors have been updated to support a new Rear Panel minimum gain of -60 dB. Also, "panic mute" activated with F12 key works more consistently throughout the control panel. The new version is 1.4.0 and is compatible with all previous firmware versions.
  • The control panel program for the DMTH4 Digital Telephone Hybrid has been updated to support a new Rear Panel minimum gain of -60 dB. Also, "panic mute" activated with F12 key works more consistently throughout the control panel. The new version is 1.0.6and is compatible with all previous firmware versions.

    Use installer version 1.2.1 to install the updated LecNet2 programs to your PC or laptop. This installer is also included in the LecNet2 CD release of 5June2006.

23May2006 - Updated firmware has been released for the DM1624, DM1612 and DM812 Digital Matrix Processors. New version 1.5.3 includes:

  • Minimum rear panel gain changed from -30 dB to -60 dB to give users greater range of control over levels when using rear panel control.

23May2006 - Updated firmware has been released for the DMTH4 Digital Telephone Hybrid. New version 1.3.5 includes:

  • Minimum rear panel gain changed from -30 dB to -60 dB to give users greater range of control over levels when using rear panel control.

11May2006 - Updated firmware has been released for the DM1624, DM1612 and DM812 Digital Matrix Processors. New version 1.5.2 includes:

  • Fix bug in momentary mute programmable input functions - sometimes, after the momentary contact pushbutton was pressed and then released the affected channels would remain muted - forcing the user to press the button a second time to clear the mute. Also affected was the PTT function (momentary unmute), but in the reverse manner.

11May2006 - Updated firmware has been released for the DMTH4 Digital Telephone Hybrid. New version 1.3.4 includes:

  • Fix bug in momentary mute programmable input functions - sometimes, after the momentary contact pushbutton was pressed and then released the affected channels would remain muted - forcing the user to press the button a second time to clear the mute.

2May2006 - Updated LecNet2 software has been released:

  • The control panel programs for the DM1624, DM1612 and DM812 Digital Matrix Processors have been updated to change the default attack time for compressors from 1.0 to 20.0 ms, which is a better match for the default release time of 200 ms. The new version is 1.3.5 and is compatible with all previous firmware versions.
  • The control panel program for the DMTH4 Digital Telephone Hybrid has been updated to correct a bug where input compressor status was not updated when the "In Comp" tab was being viewed. The new version is 1.0.5and when used with DMTH4 units running firmware version 1.3.3 and higher will properly display input compressor activity in the "In Comp" tab. It is compatible with all previous firmware versions.

    Use installer version 1.2.0 to install the updated LecNet2 programs to your PC or laptop. This installer is also included in the LecNet2 CD release of 2May2006.

2May2006 - Updated firmware has been released for the DM1624, DM1612 and DM812 Digital Matrix Processors. New version 1.5.1 includes:

  • The default attack time for compressors is changed from from 1.0 to 20.0 ms, which is a better match for the default release time of 200 ms. The default comes into effect when a preset is set to "Factory Default" values from the front panel LCD interface. Compatible with all previous control panel program versions.

18April2006 - Updated firmware has been released for the DMTH4 Digital Telephone Hybrid. New version 1.3.3 includes:

  • Added "verbose response" capability. This supports certain 3rd party control programming styles where the response to all responses needs to be self-describing and/or contain current property values. To use, prefix the usual DMTH4 LecNet2 commands with an exclamation point (bang) character. To learn more consult the online help in the latest DMTH4 control panel program under the "DMTH4 Command Set" topic.
  • Corrects a bug where input compressor status was not updated when the "In Comp" tab was being viewed in the DMTH4 control panel program. DMTH4 control panel version 1.0.5 or higher MUST be used in conjunction with this firmware version, it is NOT compatible with previous control panel versions. Be sure to download and run the latest LecNet2 installer to pick up a compatible control panel program.
  • BEL character (ASCII 0x07) now sent at start of each ring pulse, and ETB (ASCII 0x17) is sent at end of each ring pulse, to give 3rd party controllers full information about duration and spacing of pulses.
 
 
 
 

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