Elektron Musical Instruments

Didn't see anything specifically addressing this in the archives.. 
might have missed it, and hope there is a fix.

I just received my MD in UPS today, and it sounds great.  However, upon 
turning on Sync Out to be the master clock, it sends a very audible 
buzz out the mains.  Turning off the clock send then stops the noise 
again.

Nice machine but if this is not going to work as is.  I've got the 
latest OS installed.  Any ideas?

Thanks,
Chris

and just in case anybody asks, it is not just going out the mains but 
out all the individual outputs as well.  and as one would expect, as 
the tempo is increased and the clock data rate increases the buzz 
pitches up.

Yours,
Chris

On Apr 26, 2004, at 2:03 PM, Christopher Mitchell wrote:

> Didn't see anything specifically addressing this in the archives..
>  might have missed it, and hope there is a fix.
>
>  I just received my MD in UPS today, and it sounds great.  However, 
> upon
>  turning on Sync Out to be the master clock, it sends a very audible
>  buzz out the mains.  Turning off the clock send then stops the noise
>  again.
>
>  Nice machine but if this is not going to work as is.  I've got the
>  latest OS installed.  Any ideas?
>
>  Thanks,
>  Chris
>
>
>
>
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I imagine it has something to do with the fact that the midi cable is  
also picking up a radio station, especially when I ground it but even  
when it is just sitting around.  this is the kind of thing i would  
expect from a guitar, and would use a ground lifting DI, but this  
happening from a midi cable is kind of lame.  Touching the around the  
power supply and around the aluminum top, regardless of where it is  
plugged in, also tunes in my favorite Mexican AM station.

actually, it is happening only when a midi cable is plugged into the  
output to an input whether the receiving end is turned on or not.  both  
devices are currently plugged into the same power strip and being  
ground lifted.  having read other users' reports of noise and radio  
interference I was hoping for the best, but rather than take this out  
of the country with me I think it may have to go back up for sale.

slightly disgruntled,
Chris

On Apr 26, 2004, at 2:07 PM, Christopher Mitchell wrote:

> and just in case anybody asks, it is not just going out the mains but
> out all the individual outputs as well.  and as one would expect, as
> the tempo is increased and the clock data rate increases the buzz
> pitches up.
>
> Yours,
> Chris
> On Apr 26, 2004, at 2:03 PM, Christopher Mitchell wrote:
>
>> Didn't see anything specifically addressing this in the archives..
>>  might have missed it, and hope there is a fix.
>>
>>  I just received my MD in UPS today, and it sounds great.  However,
>> upon
>>  turning on Sync Out to be the master clock, it sends a very audible
>>  buzz out the mains.  Turning off the clock send then stops the noise
>>  again.
>>
>>  Nice machine but if this is not going to work as is.  I've got the
>>  latest OS installed.  Any ideas?
>>
>>  Thanks,
>>  Chris
>>
>>
>>
>>
>> Yahoo! Groups Sponsor
>>
>> ADVERTISEMENT
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>>
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>>
>> 	• 	To visit your group on the web, go to:
>> http://groups.yahoo.com/group/elektron-users/
>>  
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>> Service.
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>>
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On Mon, Apr 26, 2004 at 02:21:33PM -0500, Christopher Mitchell wrote:
> actually, it is happening only when a midi cable is plugged into the  
> output to an input whether the receiving end is turned on or not.  both  
> devices are currently plugged into the same power strip and being  
> ground lifted.  having read other users' reports of noise and radio  
> interference I was hoping for the best, but rather than take this out  
> of the country with me I think it may have to go back up for sale.

yuk!  I don't think that it will help, but maybe you should try doing a
soft reset?  I would contact Elektron about this if that doesn't help.
it sounds more like a hardware issue than a software one, though.

good luck!
Joe

ok further information if it helps:

I am able to significantly reduce, but not make silent, the tempo sync 
buzz if I unplug every audio connection between the Access indigo 2 and 
the MOTU 828mk2 that I had it plugged into.

As a matter of fact, the only thing plugged into the 828 now is the MD. 
  If I plug in an audio cable to both the 828 and the Indigo, the buzz 
returns.  No matter what jack on the Indigo (input, output).  Further 
it doesn't matter whether the indigo is plugged in or not.  The noise 
occurs even with the Indigo completely disconnected from everything and 
a midi cable is plugged between the MD and the Indy.

keep in mind all these are plugged into the same ground-lifted strip.  
I'm not even going out the MOTU outs at the moment, just listening in 
headphones.  I thought it didn't like my cables between the MOTU to my 
sub/x-over but that is all disconnected now as well.

The next test will be: does this happen with any other gear?

test subject will be a roland mc505 that i need to test before selling 
anyway.

result: no noise, the culprit is not the machinedrum but the indigo.  
however it seems strange, i will now test between the 505 and the 
indigo.

in this test the 505 was not groundlifted and was plugged into another 
plug across the room.  still no noise.

so man, wtf happened to the indigo.. oh well.

Thanks for listening,
Chris

Joe,

Thanks for the response on this.  I agree it sounds like a hardware 
issue - and I am a little relieved that it is not the MD, but since 
neither are under warranty I am not sure what I'll do with them.  I 
guess nothing together :/

I did an empty reset.  ! That's a cool feature on the MD.

Though in any case I may still have to sell all this stuff depending on 
news from my uni in the next two days :/

Yours,
Chris

On Apr 26, 2004, at 2:33 PM, Joe wrote:
>
>  yuk!  I don't think that it will help, but maybe you should try doing 
> a
>  soft reset?  I would contact Elektron about this if that doesn't help.
>  it sounds more like a hardware issue than a software one, though.
>
>  good luck!
>  Joe

Well, if I get a good firm grip on the aluminum side of the indigo and 
touch the metal plate firmly on the machinedrum it demonstrates that 
there is a groundloop between the midi out of the MD and the midi in of 
the Indigo... the loop becomes most obvious when something is going out 
the midi out when all signals, including hitting the MD transport 
buttons, make a little click/chirp.

So long as I have them, I don't want to choose between the two - but 
the problem only exists (as far as I can tell) in the configuration I 
want to use.  The indigo is not nearly as good of a master as the MD, 
but the MD syncs to the indigo without anything making any extra hums.  
It seems to be just between these particular ports.

So a) how do I just kill the loop?  b) which manufacturer do I contact 
about this first?

The room I have the items setup in is in about as bad of grounded 
electricity as any other average house, and I almost always lift the 
grounds of items I've got on.  In this case the loop is not occurring 
with electricity, so ground lifters don't make any difference.

Thanks,
Chris

I know Gert has had his indi hooked up the the MD and never said he had any
probs, and I think he was using the MD as the master.

On 4/26/04 4:26 PM, "Christopher Mitchell" wrote:

> Well, if I get a good firm grip on the aluminum side of the indigo and
> touch the metal plate firmly on the machinedrum it demonstrates that
> there is a groundloop between the midi out of the MD and the midi in of
> the Indigo... the loop becomes most obvious when something is going out
> the midi out when all signals, including hitting the MD transport
> buttons, make a little click/chirp.
> 
> So long as I have them, I don't want to choose between the two - but
> the problem only exists (as far as I can tell) in the configuration I
> want to use.  The indigo is not nearly as good of a master as the MD,
> but the MD syncs to the indigo without anything making any extra hums.
> It seems to be just between these particular ports.
> 
> So a) how do I just kill the loop?  b) which manufacturer do I contact
> about this first?
> 
> The room I have the items setup in is in about as bad of grounded
> electricity as any other average house, and I almost always lift the
> grounds of items I've got on.  In this case the loop is not occurring
> with electricity, so ground lifters don't make any difference.
> 
> Thanks,
> Chris
>

it's unusual.  the indigo has never given me any trouble before, and it 
syncs to the 505 (as the test case) without choking all over itself and 
buzzing.. just as the MD syncs to the Indigo.. it's just this one 
connection; unfortunately, the only connection I want to make.  I've 
sent a mail to both support teams.  Hopefully I can rectify it myself, 
or at least locally.

On Apr 26, 2004, at 3:46 PM, Andy Tarpinian wrote:

> I know Gert has had his indi hooked up the the MD and never said he 
> had any
>  probs, and I think he was using the MD as the master.
>
>
>  On 4/26/04 4:26 PM, "Christopher Mitchell" wrote:
>
>  > Well, if I get a good firm grip on the aluminum side of the indigo 
> and
>  > touch the metal plate firmly on the machinedrum it demonstrates that
>  > there is a groundloop between the midi out of the MD and the midi 
> in of
>  > the Indigo... the loop becomes most obvious when something is going 
> out
>  > the midi out when all signals, including hitting the MD transport
>  > buttons, make a little click/chirp.
>  >
>  > So long as I have them, I don't want to choose between the two - but
>  > the problem only exists (as far as I can tell) in the configuration 
> I
>  > want to use.  The indigo is not nearly as good of a master as the 
> MD,
>  > but the MD syncs to the indigo without anything making any extra 
> hums.
>  > It seems to be just between these particular ports.
>  >
>  > So a) how do I just kill the loop?  b) which manufacturer do I 
> contact
>  > about this first?
>  >
>  > The room I have the items setup in is in about as bad of grounded
>  > electricity as any other average house, and I almost always lift the
>  > grounds of items I've got on.  In this case the loop is not 
> occurring
>  > with electricity, so ground lifters don't make any difference.
>  >
>  > Thanks,
>  > Chris
>  >
>
>
>
>
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I've noticed that if you send Midiclock to MD midi-output 
accidentaly, it brings a audible buzz. Maybe you have some sorf of 
midi feedback going on in your studio? I use my MD with sending 
midiclock to it and there is no buzz or anything else, it works 
perfectly.

Toni.

I have the same set up.  I got everything close together with some
midi wires running even acroos my mixer a bit.  I get no feedback loop
sound.  The midi wires are even running over the behringer power
supply.  I got no problems.  

My guess is the Indigo.  I've heard of many build problems with their
products.  Not insanely many.  I had to return my first Indigo because
one key wouldn't send the proper velocity.  There have been many
different problems with different units.  

I sometimes got shocks between the two units and separately but never
heard it.

--- In elektron-users@yahoogroups.com, Andy Tarpinian <evildead@n...>
wrote:
> I know Gert has had his indi hooked up the the MD and never said he
had any
> probs, and I think he was using the MD as the master.
> 
> 
> On 4/26/04 4:26 PM, "Christopher Mitchell" wrote:
> 
> > Well, if I get a good firm grip on the aluminum side of the indigo and
> > touch the metal plate firmly on the machinedrum it demonstrates that
> > there is a groundloop between the midi out of the MD and the midi
in of
> > the Indigo... the loop becomes most obvious when something is
going out

> > the midi out when all signals, including hitting the MD transport
> > buttons, make a little click/chirp.
> > 
> > So long as I have them, I don't want to choose between the two - but
> > the problem only exists (as far as I can tell) in the configuration I
> > want to use.  The indigo is not nearly as good of a master as the MD,
> > but the MD syncs to the indigo without anything making any extra hums.
> > It seems to be just between these particular ports.
> > 
> > So a) how do I just kill the loop?  b) which manufacturer do I contact
> > about this first?
> > 
> > The room I have the items setup in is in about as bad of grounded
> > electricity as any other average house, and I almost always lift the
> > grounds of items I've got on.  In this case the loop is not occurring
> > with electricity, so ground lifters don't make any difference.
> > 
> > Thanks,
> > Chris
> >

Hi there,

I´m experiencing the exact same problem but with a Nord G2. It´s 
curious you mention it because I only noticed it a couple of days ago 
when I tryed seq the g2 with the MD. i have the MD for like 2 years 
now. The crackling level is absurdly loud. Everything gets quiet when 
I unplug the midi cable. Tested all sorts of cable combination and 
the problem remains. Tonight I´ll make further tests. I was thinking 
it was due to unproper grounding of my apartment´s outlets but if you 
have the same problem I´m starting to get worried. I had a virus b in 
the past and I never noticed this. nor with other synths, includind 
midified analogs so I guess the MD may be playing some role in this. 
But never with keyboards, which is the common thing between our 
rig... not sure how this can be causing the problem though... do you 
have any other kbd you can test this on?

lets hope we sort this out.  


> > > there is a groundloop between the midi out of the MD and the 
midi
> in of
> > > the Indigo... the loop becomes most obvious when something is
> going out
> > > the midi out when all signals, including hitting the MD 
transport
> > > buttons, make a little click/chirp.
>