3Sigma IR Issue -- I Think

Discussion in 'Discussion' started by JoeInOttawa, Jun 13, 2018.

  1. JoeInOttawa

    JoeInOttawa Well-Known Member

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    All,

    Among the presets I use are two that use 3Sigma Martin 45 IRs. One of those presets uses an IR designed to make an electric guitar sound acoustic-ish, but I am having an issue with that preset: It generates digital noise/artifacts -- you know, little high-pitched beeps in the decay of the notes.

    It only happens with the one preset. I tried turning off EVERYTHING except the cab, but the glitch was still there, so I believe the problem is with the IR. I am using the 48kHz version.

    Any thoughts on what I might be doing wrong?

    Joe
     
  2. Jace Nuzback

    Jace Nuzback Senior Member

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    So this IR works fine when loaded in to other presets, but causes noise in one particular preset location?
    If so, then the IR shouldn't be the problem.
    But if I'm misunderstanding, does loading this IR in other preset locations also cause the noise?
     
  3. JoeInOttawa

    JoeInOttawa Well-Known Member

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    Sorry, I guess I wasn't clear: I am using two different IRs from 3Sigma, and I mention that only because I wanted to convey that they DO work for me. But this particular IR -- which is only used in one preset -- has these digital artifacts.

    So, one IR used in one preset. I am going to try reloading it, maybe using the 44kHz version. But any other suggestions?

    Sorry about that.

    Joe
     
  4. JoeInOttawa

    JoeInOttawa Well-Known Member

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    FYI, 3Sigma blames Atomic:
    "The IRs in the electric folder have a significant amount more of 10k and above making this area much more audible. Sounds like its bringing out aliasing errors in the unit. There isn't anything we can do about that unfortunately, as it's not adding them just making audible what is already there on the Atomic."
     
  5. Jace Nuzback

    Jace Nuzback Senior Member

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  6. JoeInOttawa

    JoeInOttawa Well-Known Member

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    I can't tell exactly which one it is (gotta love name truncation!), so I'll email you the three, one of which it is.

    Thanks, Jace!

    Joe
     
  7. Jace Nuzback

    Jace Nuzback Senior Member

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    I loaded all 3 files in to three different presets using nothing but the CAB block and they all sounded quite good.
    So the files aren't the issue.
    Here's some things to try:
    1. Reload the firmware. In the editor go to FILE-UPDATE FIRMWARE.
    Don't touch the unit or the computer until the procedure is finished.
    If there is no change:
    2. Copy or import a different preset in to the preset location that is causing the issue.
    Turn off all FX blocks but the CAB. Load each of the IR files in to this preset one at a time.
    See if any of them cause the same issue.
    Let me know where that gets you.
    Jace
     
    Clint Martin likes this.

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