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Board clipping

COMBODRIVECOMBODRIVE
in General Discussion and Chatter
What does board clipping mean. I noticed it on one of my patches

'the red led between user and factory\" lights up only when I play heavy rhythm is this bad?
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Comments

  • P.G.ShadowP.G.Shadow
    I think it means your gain structure is wrong, the pre gain,or post gain.
    Sorry it's alittle vague. :(
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  • iliaceiliace
    That means that something is too loud. Or maybe not too loud, but getting there.
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  • LuredMaulLuredMaul
    yeah it's a signal strength overload alert.


    STEP BACK! IT\"S GONNA BLOW!

    lol
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  • COMBODRIVECOMBODRIVE
    Thanks man I knew this patch was to powerful. Its called TUBE 1 in case you would like to know I changed corus to Flanger and warped it to 15. It's to bad sounds so good.

    Maybe guitar3456 can weigh in on this. I would like to know just how far I can push this GNX with out blowing it .

    Thanks .

    \"Forever love it loud\" B L S.

    COMBODRIVE.
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  • AlbertAAlbertA
    Just use the Preset level to bring the overall patch level down.
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  • Tal RulesTal Rules
    Don't make the mistake I did...

    Some of my early recordings I purposely set the gains to turn on the red LED on loud output portions of a solo..

    I was thinking that Red LED corresponded to the red on a VU meter which when I used to record on a reel to reel would set up my input gain to just barely touch the red with the VU needle on loud output portions of a solo or for anything else..

    The red LED on the GNX definitely indicates an overdrive (CLIP) situation.
    Not just a mere indication that you're approaching a clipping situation..

    Learned the hard way..
    Thought I'd pass it on...
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  • guitar3456guitar3456
    The best settings for patches and vols are 2 green leds lit on the GNX4 indicator as you play. The output amp has a ton of headroom as does the headphone amp. Setting the levels at that mark reduces clipping and muddy patches. It can save the drivers on your headphones and save the console or pa gear as well. We monitored various signal levels for clipping and distortion artifacts and the best sounds are at levels of 2-3 Leds..no more than 3. Just to keep the reference simple without going into it db wise...

    2-3 LEDS lit= good patch tone...above that (depends on the patch) BAD!
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  • COMBODRIVECOMBODRIVE
    Sorry guitar3456 I have the GNX3.

    \"Forever love it loud\"
    COMBODRIVE.
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  • COMBODRIVECOMBODRIVE
    I turned down the min val to 57 and max val down to 57. @59 it starts clipping.

    Saved the patch that I like so much. and didn't blow the GNX.

    Thanks

    \"Forever love it loud\"
    COMBODRIVE.
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  • iliaceiliace
    Anything digital will clip when it reaches +0.0db. This is a major distinction from analog - the concept of \"headroom\" experienced a paradigm shift.
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  • Johnny JadedJohnny Jaded
    Wasn't something about to blow? :twisted:

    Headroom experienced a paradigm switch!?! :shock:

    Red light = too late to fix in the mix. You can bump the gain on a good signal in the mix, but if it clips you're kind of stuck with it. A little clipping isn't always bad, it sometimes defines a heavily distorted tone. In that case I often use a compressor on the track to even out the signal and bump the gain. The draw-back can be loss of dynamics from the compression.

    If a whole track clipped you're really kind of screwed. If it is just a small spike here and there, it usually can be dealt with. A compressor helps here too. If I were using software, I might split the section out and use an envelope to lower the gain a little.

    My best advice is to record at your best levels. You'll maintain all the dynamics of the passage and better reproduce that outstanding patch/amp/guitar tone on yout tracks.

    But what do I know? :wink:
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  • graniteheadgranitehead
    I'm confused:
    Combodrive started out talking about \"board clipping\" and \"the red led between user and factory\"... You mean in the Preset Bank area? I don't see such a thing on my GNX4, nor can I find anything in the manual about this. The thread started out talking about generic patch levels, but then it seemed to morph into std. discussion of clipping as monitored by the record and playback level LEDs in the Recorder section, which I understand.
    Experimenting, I took a couple of my most powerful patches and cranked their levels to the max and wailed on the ax. I saw no red LED flash between user and factory. I also was always able to lower REC/playback LEDs to 1 or 2 green LEDs regardless of patch \"strength\" by lowering USB 1-2 LVL.
    So I guess my question is, \"Is there such a thing as a patch level just being too high causing clipping independently of what's measured in the record/playback LEDs... and if so, how is this detected?

    Thanks! - g
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