Hello.

I've just taken over the maintenance and operations of our Church
sound system. We have a LecNet 2 digital mixer. Is there a help
location that will explain what levels/filters/delays to use for the
different pages or procedures for regenerative feedback elimination.
(how many mics are on during the set up. do you need to mute the
unused channels etc. I have copied the "master" file and reload it
after playing with my master 2 file. I know there is a better way than
trial and error
Thanks Mark

Hi Bob,

Sorry but your thinking is not correct here. The way the rear panel controls
work is that
they are attenuate (cut) only.  They minimuam attenuation is 0dB and the maximum
attenuation is 60dB.  You can also set it so that the minimum setting is "off". 
This is all
done on the last tab called "Rear Panel Ctl".  With an analog "pot" as the
controller the Gain
Preset setting is irrelevant and does not have any effect (it is useful if the
control is done
via serial commands, or up/down momentary push button switches).

So, to make a long story longer, you should set the input gain for the best
signal to noise
vs. headroom gain, just as you would with an ordinary analog real world mixer's
input gain
"Trim" control - the one typically found a the top of an input channel strip. 
With a typical
dynamic mic that might be anywhere from 30-50dB and somewhat less if an electret
condenser.  Then you use the Rear Panel Analog Input control to vary the gain of
the
channel from that setting down to whatever the minimum you've set for that
control, all
the way up to "off"", if desired.  Typically, the end user might be allowed a
limited range of
control, say 20dB, so that the channel would never go "off" completely - and so
you avoid
a service call when the only problem is that the level control is completely
counter-
clockwise.

Feel free to call me if you want to discuss this with a live human being!

Regards,

Howard

Sure.  Ask away!

Regards,

Howard

Hi JR,

Just a quick welcome to the list.  There isn't always a lot of activity here,
but if you have any
comments or questions we are happy to answer!

Regards,

Howard Kaufman
Technical Representative
Lectrosonics
(516) 557-5213 (cell and office)
www.lectrosonics.com

-----Original Message-----
From: LecNet2@yahoogroups.com [mailto:LecNet2@yahoogroups.com]On Behalf Of Howard Kaufman
Sent: Monday, September 10, 2007 3:22 PM
To: LecNet2@yahoogroups.com
Subject: Re: [LecNet2] Changing presets on a DM1624 master/slave combo

Sorry, I didn't mean to mislead  but what I said in my previous response about the logic going "high" can be confusing.  I meant that set the output logic pins on the Master to follow the chosen Presets and that would give you a closure to ground, which is what the logic input on the slave is looking for.  (I was sitting in a SYNAUDCON seminar at the time I responded and didn't have my full attention available for the email I wrote - lesson learned!)

To clarify, here is some more detail:

On the Master, go to the Rear Panel CTL tab

Choose the Output Logic tab at the bottom

Choose output logic Pin 1 (probably chosen by default)

Set it for "Monitor Active Preset" from the pull down list

Check preset 1

On the Slave go to the Rear Panel CTL tab

Choose Input Logic (probably chosen by default)

Set input logic pin 1 to "Recall Memory Preset"

Check Preset 1

Do the same for each preset but increment the pin numbers on the master and slave appropriately for all the required presets, i.e. logic pins 2 for preset 2, pins 3 for preset 3, etc..

Then physically connect the pins on the 25 pin connectors so that Logic outputs of the Master connect to the corresponding Logic inputs of the slave.

I hope that helps!

Regards,

Howard

On Sep 10, 2007, at 3:16 PM, Howard Kaufman wrote:

Yes.  One way would be to connect from logic outputs on the master to logic inputs on the slave.  You'll need an input/output pair for each preset.

Program those outputs to go "High" on the Master to correspond to each preset and the Logic Inputs on the slave to select the appropriate presets there.

Regards,

Howard Kaufman

Technical Representative

Lectrosonics

(516) 557-5213 (cell and office)

www.lectrosonics.com

On Sep 10, 2007, at 1:17 PM, clan207 wrote:

Is there any way to tell the master DM1624 to change the preset number 
on a slave DM1624 when a programmable input is used on the master to 
select the active preset?

Or, even, it there any way to do this when the master DM1624 preset is 
changed from the front panel?

bob

Is there any way to tell the master DM1624 to change the preset number
on a slave DM1624 when a programmable input is used on the master to
select the active preset?

Or, even, it there any way to do this when the master DM1624 preset is
changed from the front panel?

bob

For those of you in Australia, NZ and surrounding areas, there will be
a workshop on the LecNet 2 Series signal processors during the SMPTE
show in Sydney in July.

For complete information visit the MTA web site:

http://mtasales.com.au/

Workshop Three: Sound System Design using Lectrosonics DM SERIES
Hardware and "LecNet 2" Wednesday July 18 1400-1600

This seminar explains the use of the LecNet 2 Series of Automixers for
a variety of audio applications. The Seminar will detail the DM Series
Automixer Algorithm and it's implications in both Live Sound and
Broadcast applications. Integration with live sound consoles and
Teleconferencing issues will also be discussed. Example Systems will
be discussed.

Presenter: Mr. Gordon Moore/ VP Sales
Company: Lectrosonics/ Rio Rancho, New Mexico USA

I have plenty of thoughts but my therapist taught how to ignore the
really weird ones.......

As far as the labels go, we have had a few reports like this but
have been unable to replicate the problem here.  What would help us
track down a cause is the following information-
Which model?
What firmware in the unit?
What software rev in LecNet2?
What operating system?

Watch the steps involved in saving the presets as well - after
saving the labels (ie saving a preset) to the machine via the preset
menu, then LOAD the preset back from the unit (again in the PRESET
menu), save that to the file from the FILE menu.  That way we can be
sure you captured the data as it was in the unit.

If the file fails to transfer the labels, then send us the preset
file zipped so we can examine the data within to see what is
failing.

We suspect some weird OS problem - the reason we cannot duplicate it
here - but we do have a multiplatform computer that we can test your
file with.

Let us know!

Gordon Moore CTS
Vice President, Sales
Lectrosonics,Inc
1-800-821-1121
1-505-994-9815 direct line
1-505-892-6243 fax
gordon@...   - factory
gordonmoore1@...     - road

Gordon:

Having visited the "compressor noise issue", I need some insight
into another matter.  We often times have systems with two or three
presets, often times related to building occupancy.  It is my
practice to save these on my laptop (individually) for loading into
a replacement unit in case of failure.  To date, I have not been
successful in preserving the input/output names with the presets.
When you program the names in a unit, and return to the same unit in
the future, the names are there.  But take another unit, load the
presets into it, and the names are lost.  Also on one occasion, I
lost the input gain settings; on another occasion, the output gain
settings. In both of these cases, all of the other parameters were
intact.  Do you have any thoughts?

Andy

DCI Sound
315-673-2088

Hi Gordon,

Thanks for the tip. I usually set the attack a bit quicker than 20mS,
but we will give that a try. Is there any thought as to why that
particular symptom shows up with line level and not mic level inputs?


Take care,


Mark

Andy and Mark -

Check the attack time on the compressors - I ran into the same thing
at my church where we have the beta test unit - the units used to
ship with an attack time of around 1ms on compression as "standard"
- the moment you activated the compressor by picking a ratio, this
was the default.

Change that to a more reasonable 20-30ms and it smooths out.  We now
ship them set to 20ms as the default.

Also double check input gain - make sure you aren't overloading the
input. (I know Mark wouldn't do such a thing but I still have to say
it!)

Check those attack times (also make sure the release time is LONGER
than the attack - I typically use 200ms in the church.  I use a 3:1
ratio.

My church is about 2 mile sup the road and very convenient for
testing in a live environement with a bunch of amateurs running
things - nothing a field installation where you can see what we
missed in the lab.  The church jokes about being a beta site -
"today may be an accapella Sunday!".Gordon Moore CTS
Vice President, Sales
Lectrosonics,Inc
1-800-821-1121
1-505-994-9815 direct line
1-505-892-6243 fax
gordon@...   - factory
gordonmoore1@...     - road

Hi Mark,

I saw your posting last week, but was not able to respond until
now.  We have also noticed this distortion, and have contacted the
factory about it.  To date, they have not been able to duplicate it
(to my knowledge).  At times, I have not been able to use this
feature because of it.  Specific details sent to the factory may
help, if you have them...

Andy
DCI Sound
Marcellus, NY


--- In LecNet2@yahoogroups.com, "Mark Simoni" <markcgaux@...> wrote:
...
> We have notices some instances of distorted
> audio when operating compressors or limiters with line level
inputs.
> Mark
>

Hi,

We love LecNet 2 DMs. We have notices some instances of distorted
audio when operating compressors or limiters with line level inputs.
Inputs meter normally, and the sound cleans up when raising the
threshold to a point where there is no gain reduction, or the ration
is changed to 1:1. Anyone else notice this or have a tip?

Thanks,

Mark

Greetings to you too Tony!

Regards,

Howard Kaufman
Technical Representative
Lectrosonics
(516) 804-9030 office
(516) 557-5213 mobile

Hi Andy and welcome to the list!

Regards,

Howard

Tony here from Australia. Looking forward to all posts.

Hi, my name is Andy Cross, and I work for a Design-Build contractor in
upstate New York known as DCI Sound.  My responsibilities include
electrical design, troubleshooting, and development of control
software as required. Many of our projects are in the religious
market. We have used Lectro products for many years, including several
of the new Lecnet2 units.

Just wanted to say hello to all new members.  It's great to have this
new group and I hope a lot of our customers find it useful!

Regards,

Howard Kaufman
Technical Representative
Lectrosonics
(516) 804-9030 office
(516) 557-5213 mobile

On behalf of Lectrosonics, Inc., let me welcome you to the new LecNet2
user's group. Please post your questions, tips, system design ideas or
suggestions here. We're looking forward to engaging in discussions
with you about our products, applications and any other related issues.

Sincerely,

Karl Winkler
Lectrosonics, Inc.