Can’t find fix for clipping noise in my LT

[boynigel]

I have 26 presets for my band and I’m noticing that on 5 of them I’m hearing some clipping noises, like an input is being hit too hard somewhere when I dig in to notes.  Clean sounds seem to be the biggest culprit which makes sense as they’re going to have more spikey transients, unlike overdriven tones.

 

FWIW, I have the LT’s guitar input set for Auto, and this has never given me a problem.  I also went through every block, particularly delays, that have headroom parameters and turned them way up.  This eliminated, or at the very least minimized the clipping noises.

For the most part, I can live w/the clipping as it’s pretty faint, and I know there’s no way I’ll hear it when all the other instruments are playing along, but in a perfect world I’d like NO clipping.

 

The one preset that it’s totally unacceptable on uses an effects loop block that goes out to an Eventide H90.  The effects loop block isn’t clipping, nor is the H90…at least according to their visual meters.  I was able to get rid of the clipping by lowering the fx loop block’s send down to -5.0 db,  but naturally this creates the new problem of loss of volume, so I raise the Return level up by the same amount and then I’m back to square one. 

 

I do use a 2^nd effects loop block that runs an always-on J Rockett Airchild compressor, set very subtly…and gives me no grief on other presets.  And again, as soon as I bypass the FX loop block that goes to the H90, the clipping is gone.

I’ve been running the effects loop in/outs as Instrument on both the LT and the H90, and experimented with switching them to Line, or having one set to Line and the other set to Instrument with no luck their either.

 

Also worth mentioning- every Amp and Speaker block is pretty much the same from preset to preset, so it’s not like I’m jumping around between amps/cabs with different outputs/characteristics.

Any other tips/advice to figure out what’s causing this?

[Schmalle]

To much level causes clipping. I guess you use the delays and the H90 after the an amp block?!

Lower the amp block's Ch Vol parameter to increase the headroom for the blocks that come after it.

[boynigel]

On 12/5/2024 at 2:10 PM, Schmalle said:

To much level causes clipping. I guess you use the delays and the H90 after the an amp block?!

Lower the amp block's Ch Vol parameter to increase the headroom for the blocks that come after it.

yes, delays/h90 after amp block.

 

as far as lowering the amp Ch Vol, i use those same amps (and settings) on my other presets, some of which have waaaayyy, more post-amp blocks than the presets giving me trouble, yet i have no clipping noises on them.  I'll still give your suggestion a try, but that means those presets that i lower the Ch Vol on will be more quiet than all my other presets...unless i can make up for it by adding volume via the output setting (the circle that comes at the end of the chain) without re-introducing the clipping sound.

 

if that doesn't work, then i guess i'd have to lower ALL my presets' volumes so that they match the ones that i lowered the volume on due to clipping.\

 

perceived volume matching is such a PIA, hopefully i won't have to get into that as i finally got all the levels good between all the presets only recently.

[Schmalle]

Make sure Global Settings -> Ins/Outs -> 1/4" Outputs is set to Line if the problem is low output level.

[theElevators]

Make sure your blank (aka just guitar signal) presets are as loud as your actual presets. That’s the rule of thumb. Otherwise you get digital clipping.