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665 Views 21 Replies Latest reply: Feb 21, 2012 4:22 PM by elovercast RSS
elovercast Just Startin'
elovercast
10 posts since
Jan 17, 2007
Currently Being Moderated

Feb 17, 2012 4:53 PM

Channel Volume Problem-Bleed Thru

OK Guys, I've searched for a solution to my problem but didn't find anything. I like to assign my expression pedal to the channel volume instead of using an effects block. The problem is I cant seem to get the volume to go to zero. There is always some bleed thru no matter what I do. I have check the setting for the pedal and they are at min 0 max 100, yet some sound still comes through. I have even calibrated the pedal with no luck. What am I doing wrong or is this just the way it is. Firmware is also up to date.

  • jimsreynolds Power User
    jimsreynolds
    2,227 posts since
    Jun 27, 43450
    Currently Being Moderated
    Feb 18, 2012 3:09 AM (in response to elovercast)
    Re: Channel Volume Problem-Bleed Thru

    HD500?  A single path or a dual path patch?   Something that looks like this

     

       |-----X-----X-----|

    ---|                 |------

       |-----X-----X-----|

     

     

    Rather than like this

     

    ----X-----X-----X-----X----X-----

     

     

    ?

  • Nick_Mattocks Best of the Best
    Nick_Mattocks
    9,065 posts since
    Mar 26, 2007
    Currently Being Moderated
    Feb 18, 2012 4:08 AM (in response to elovercast)
    Re: Channel Volume Problem-Bleed Thru

    Hi

     

    I'd advise checking the expression pedal calibration as the required channel volume min and max assignments for the amp model are correct. If the expression pedal doesn't ever quite reach zero then neither will the amp model volume

     

    Nick

  • elovercast Just Startin'
    elovercast
    10 posts since
    Jan 17, 2007
    Currently Being Moderated
    Feb 18, 2012 7:33 AM (in response to elovercast)
    Re: Channel Volume Problem-Bleed Thru

    Hi

     

    Its is a hd500 amd I'm useing a single path.

     

    I have calibrated the pedal with no luck.

     

    Eric

    • silverhead Expert Line 6 User
      silverhead
      9,592 posts since
      Apr 1, 2009
      Currently Being Moderated
      Feb 18, 2012 7:51 AM (in response to elovercast)
      Re: Channel Volume Problem-Bleed Thru

      When you calibrate the pedal, does the numeric value of the minimum position actually display zero when you move the pedal fully to the heel position?

       

      In some cases the pedal calibration shows that the pedal only reaches as low as some value in the 20s or 30s. If this is happening in your case it would explain the symptom. Here's a fairly straightforward solution that has worked for me and others:

      http://line6.com/support/message/351090#351090

       

      Be very careful if you apply this fix - if you are not comfortable doing it take these instructions to someone with experience in electronics.

  • elovercast Just Startin'
    elovercast
    10 posts since
    Jan 17, 2007
    Currently Being Moderated
    Feb 18, 2012 10:46 AM (in response to elovercast)
    Re: Channel Volume Problem-Bleed Thru

    Just recalibated agian. Pedal values are correct 0 to 255. Still no change. Even when I turn down the channel volume at the floor pod it say the value is "0" but some sound still comes thru.

  • elovercast Just Startin'
    elovercast
    10 posts since
    Jan 17, 2007
    Currently Being Moderated
    Feb 19, 2012 5:35 PM (in response to elovercast)
    Re: Channel Volume Problem-Bleed Thru

    HD500 chain.JPG

    Here is a screen shot of my patch. Single chain. I have added a volume pedal to it but I can still turn down the channel volume and have some sound output when the volume pedal is turned up. Main Mix is set to 0.db for both path A and path B and the pan is centered on both. I'm stumped.

    hd500 amp.JPG

    Here the amp setting. Note ch vol is "0" but some sound still comes thru.

     

    Thanks for all the advice. The worst thing is I put volume pedals on my patches.

     

    Thanks Agian

    Eric

    • jimsreynolds Power User
      jimsreynolds
      2,227 posts since
      Jun 27, 43450
      Currently Being Moderated
      Feb 20, 2012 1:07 AM (in response to elovercast)
      Re: Channel Volume Problem-Bleed Thru

      (scratching my head .... looking confused ....)

       

      Just one point to check:   if you turn the volume knob on the POD all the way down by hand (rather than by using the expression pedal) do you get full silence then?

    • silverhead Expert Line 6 User
      silverhead
      9,592 posts since
      Apr 1, 2009
      Currently Being Moderated
      Feb 20, 2012 7:14 AM (in response to elovercast)
      Re: Channel Volume Problem-Bleed Thru

      Is this happening with a specific patch, or in general with all patches of a specific nature?

       

      What happens when you create a duplicate of the patch you pictured, from scratch - not by copying the current patch?

       

      If it still happens in the new patch you have created from scratch, please post it here so that others can test it on their equipment. You may have to add a ".jpg" extension to the filename to get around the fietype restrictions that this forum places on file attachments.

  • elovercast Just Startin'
    elovercast
    10 posts since
    Jan 17, 2007
    Currently Being Moderated
    Feb 20, 2012 7:19 PM (in response to elovercast)
    Re: Channel Volume Problem-Bleed Thru

    Good Evening Guys

     

    Played around some more tonight and here's what I found.

    Turning the channel volume knob on the pod doesn't make any difference problem is still there.

     

    I also tried working with a new patch from scratch. I started out with just a amp and a volume pedal at the end of the chain. Changed no settings, Just pick an amp.

    Guess what.... bleed thru. So I tried all the other amps with the same results. Some had more bleed thru than others but they all had some.

     

    I even plugged headphones into the pod with the same results.

     

    The mystery continues..........

     

    Thanks

    Eric

    • meambobbo Iknowathingortwo
      meambobbo
      1,702 posts since
      Dec 13, 2007
      Currently Being Moderated
      Feb 20, 2012 8:28 PM (in response to elovercast)
      Re: Channel Volume Problem-Bleed Thru

      Just tested this myself - I have bleed through as well.  It's almost inaudible it has so little volume, but when I set my Volume knob to 0% for the amp block, some signal is still passing through.  I think this should officially be logged as a bug.

       

      I'm using firmware 1.41 I think - I didn't do the 1.43 update yet, but it sounds like you did.

    • daferalo Iknowathingortwo
      daferalo
      270 posts since
      Apr 12, 2010
      Currently Being Moderated
      Feb 20, 2012 9:02 PM (in response to elovercast)
      Re: Channel Volume Problem-Bleed Thru

      Hi Eric,

       

      The mayority of the time I have had the same behaviour that you describe here, so that when I definitively need to turn down the amp volume to 0, then I have to use the volume pedal. No other way for me up until now. Maybe it is a bug, or as Nick said, it is the actual behaviour of the amps being modeled.

       

      Best Regards,

       

      Daf

      • revans Just Startin'
        revans
        22 posts since
        Jun 26, 2010
        Currently Being Moderated
        Feb 20, 2012 11:33 PM (in response to daferalo)
        Re: Channel Volume Problem-Bleed Thru

        The amp VOLUME knob "adjusts the output level of your selected amp model without affecting the tone or distortion characteristic of the amp model." It has nothing to do with the amp model.

         

        "You can use the Amp Model deep edit parameters to completely change the behavior of any amp model from subtle to extreme...MASTER sets the amount of power amp distortion." It is the amp's deep edit MASTER that follows the behaviour of the amp being modelled, not the amp VOLUME.

         

        If the amp VOLUME is set to zero and there is some sound bleeding through, this is a bug.

        • jimsreynolds Power User
          jimsreynolds
          2,227 posts since
          Jun 27, 43450
          Currently Being Moderated
          Feb 21, 2012 1:52 AM (in response to revans)
          Re: Channel Volume Problem-Bleed Thru

          Yep.   Sounds like a glitch to me. Volume is not a modelling parameter ... just a manual gain control.

        • daferalo Iknowathingortwo
          daferalo
          270 posts since
          Apr 12, 2010
          Currently Being Moderated
          Feb 21, 2012 6:46 AM (in response to revans)
          Re: Channel Volume Problem-Bleed Thru

          Well, although the amp volume parameter in the POD does not affect the tone (that is a fact), it is similar to the actual master volume of a real tube amp in the sense that both can increase or decrease the output volume (a gain control as jimsreynolds said). Of course, in a real tube amp this would mean also to change the feeling and the dynamic of the tone, which is not the case of the pod (a behaviour similar to what could happend in a solid state amp). That is what I mean, maybe the master volume of the real amp being modeled does not mute totally when being at 0. Anyway, I have check this in my AC 30 and it is not the case, so it could be a bug.

           

          Best Regards,

           

          Daf

          • meambobbo Iknowathingortwo
            meambobbo
            1,702 posts since
            Dec 13, 2007
            Currently Being Moderated
            Feb 21, 2012 7:36 AM (in response to daferalo)
            Re: Channel Volume Problem-Bleed Thru

            yes, I agree about real amps, but when you have a digital volume control set to 0%, the expectation is 0% of the signal passes through, right?

            • jimsreynolds Power User
              jimsreynolds
              2,227 posts since
              Jun 27, 43450
              Currently Being Moderated
              Feb 21, 2012 8:13 AM (in response to meambobbo)
              Re: Channel Volume Problem-Bleed Thru

              Yep.   Given the apparent role of the Volume knob as a linear gain control then I would expect 0 =  silent.   I guess there may be some debate around the behaviour of the Deep Edit Master Volume control when at zero but really, what amp does not go silent when the master is all the way down?  I mean, electronically, you just connected your input signal through to ground?  I might still hear some hum or hiss but signal ???

               

              (half expecting someone with one of the 'real amps' to point out a path leakage of some kind here ...)

              • daferalo Iknowathingortwo
                daferalo
                270 posts since
                Apr 12, 2010
                Currently Being Moderated
                Feb 21, 2012 8:34 AM (in response to jimsreynolds)
                Re: Channel Volume Problem-Bleed Thru

                I made a quick test on my AC 30 TB (the new version, not exactly the one being modeled) and it becomes totally silent when master volume goes all the way down (even the hiss).

                 

                I do not remember which amp was, but once I played through an amp which behaved like that. Anyway it was not a problem as I always use a volume pedal when going totally through analog pedals and real amps. I think it was a fender amp.

                 

                At this point I agree that it is a bug, but I always have managed it by using the volume pedal effect in the POD HD when needed.

                 

                I remember also that there was a POD HD firmware upgrade (maybe a year ago) which dealed with the drive amp knob not accessing its minimum level and, this behaviour was corrected. What is the way to inform about bug issues to Line6? I guess this thread is not marked as a question, so that Line6 support could not see it

  • elovercast Just Startin'
    elovercast
    10 posts since
    Jan 17, 2007
    Currently Being Moderated
    Feb 21, 2012 4:22 PM (in response to elovercast)
    Re: Channel Volume Problem-Bleed Thru

    Hi Everyone,

     

    I want to thank everyone who responded to my thread. Your help and insight is greatly appreciated.

    I have posted a new thread as a question to Line6 support with a link to this thread.

    I'm glad to find out that it is not just me that can reproduce this issue. I was beginning to think that I may have a bad pod.

     

    Thanks Again

     

    Eric

     

    Here's the link to the new thread.

     

    Channel Volume Problem-Bleed Thru

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