Is this Noise normal or is mine broken??

k.e.p.

Attached is a mp3 containing the noise on the outputs of my G2. 1st half are Out 1/2 followed by Outs 3/4. I'm concerned about the high pitched tone you can hear, about 2kHz maybe.. It's there all the time, no matter if there's a USB, Midi, or Audio Connection, so no Loops or something here.
Can someone confirm this Noise as being normal or defective!?
The record chain was G2 Out->Mackie 1202 VLZ Stereo In, Channel and Maser Vol all way up, Main Out-> MOTU 828 MkII,
but I can hear this Tone in my Headphone on the G2 Out, too.
This bother me especially when I use a Fuzz or something to distort the G2 Output, as this one brings out the noise even more!!

Thanks!
Lars

g2_Noise.mp3

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strange noise on my G2's Output

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g2_Noise.mp3

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and70it · Posted: Thu Nov 02, 2006 7:37 am Post subject: usb?

the usb cable is connect?
if yes check the usb cable (with the original clavia black-red usb cable i have no problem )...

k.e.p. · Posted: Thu Nov 02, 2006 9:42 am Post subject:

No, the noise is there all the time, even if there's only the Power- and a Headphone-Cord connected... Crying or Very sad

X-Electric · Posted: Thu Nov 02, 2006 12:51 pm Post subject:

Frequency content looks like AM signal.

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blue hell

3phase · Posted: Thu Nov 02, 2006 10:00 pm Post subject:

i dont know how much you ve bossted that sggnal..but when its a plain line level recording its too much. i dont have tones above the noise floor..at least not significant ones.
But that can have external reasons as radio interference into cables or even the whole system..
you should check you machine in another studio.
I had weard problems in the past when i lived next to the korean embassy ..in the nights they started to call home... overhissing my whole studio with radioenergy to get from berlin to korea... only a 1cm2 earth kabel with a nail 3 meter into the ground was able to reduce the problems to an afordable amount...

If the sound really seems to be inside the machine you should compare to another unit and contact clavia support if the case is evident.
There is defenetly tonal noise in all digital units..so its normal to have some high freq shit..but it should be not significant...if it is..you have a problem..
when you want clean noise.. only analogs can do that..
no noise? dont exsist

3phase · Posted: Thu Nov 02, 2006 10:10 pm Post subject:

also using mic inputs on line outputs can cause such phenomens..good grounding gets more important as higher the possible amplifikation of a gainstage gets. The G2 with its rather low output level seems to work well mith mic inputs..but you defenetly get more noise this way..its better to reduce other signals to match the G2...usually anyway resulting in a better mix...
when you work digital you anyway can boost your linelevel recordings to any desired level at a later point in the production if necessary.. but there are no benefits in the digital domain for overloading anyway...its only your analog outputstages that get more beef..its not in the recording...exept you want it to clip..but this you can do with any limiter plug anyway...

k.e.p. · Posted: Fri Nov 03, 2006 12:53 am Post subject:

Yeah, clean noise!! Smile

here's a short mp3 showing somehow, how this ringing tone (have it in other Locations, too. It's there if I listen with my HD25 only, so no external Boost is necessary) comes out, when I distort the G2.
The Hum is from a EHX Big Muff having a pretty low battery, but imagine this Ringing played over a solid PA-System at high levels, it drives you crazy sometimes.

g2_Noise2.mp3

Description:

...G2->Big Muff & Sherman Filterbank showing how this Noise Tone is brought up when Distortion is used.

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g2_Noise2.mp3

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Kassen · Posted: Fri Nov 03, 2006 1:09 am Post subject:

Tim Kleinert · Posted: Fri Nov 03, 2006 1:24 am Post subject:

I had problems with constant high pitched noise on one of my G2s, and was about to bring it to the shop. However, the problem somehow managed to disappear -don't ask me how -but therefore it can't have been the unit itself. My studio is in an ancient and disintegrating factory plant (to be pulled down next year), and the condition of the electrical system is -well, go figure. The G2 seems to be rather prone to pick up "stuff" -hum, noise etc.

elektro80 · Posted: Fri Nov 03, 2006 5:00 am Post subject:

Does the G2 have balanced output? I guess not. Sometimes that can make a huge difference.

k.e.p. · Posted: Fri Nov 03, 2006 8:09 am Post subject:

The Outs are not Balanced. However I'll try different Locations/Mains Situations and see if this has any influence on the Noise...

Maybe I patch some kind of strange Pad/Drone Sound, featuring this Frequency to mask this silly Noise Idea

erstlaub · Posted: Sat Nov 11, 2006 4:28 am Post subject:

THis may or may not just be a frivolous reply,

but if you take that route, you could always (assuming that it's a constant loop attempt to rebuild it and then invert the phase so it cancels some of itself out, or if you have the resources, sample the noise on it's own and then invert its phase.

Not an ideal situation really but its an idea, this is the Nord Mod forums after all Laughing

D