I have a pedalboard noise issue and I have troubleshooted everything!!!!

I’m no expert but with the 8 pedals I use I find I get a small amount of white noise at higher volumes as well.
It seems to me that by nature when you are adding these devices to a hot audio signal you are going to always get some degree of noise, whether very small or noticeable, depending on the pedal and what it does. As you compound them, some amplify the signal and add to it, making it worse, and this probably gets worse as you add more and more pedals.

I’m used to the small bit of white noise. You can’t hear it in a live setting but in the past I used a noise gate (Boss NS-2) to clean up the signal for me. You might want to consider adding a noise gate pedal to your signal chain if you want to cut the noise down.

 

Did you try not using pedals?

 

He is saying it might be your bass

 

I suspect that the TrueTone power supply uses switching voltage regulators instead of the older, less efficient, heat generating linear voltage regulators. And some of these modern power supplies also use an HF oscillator so the transformer(s) can be smaller, lighter and cheaper. Note the "FCC disclaimer" on the bottom your your unit - it means it generates and radiates high-frequency interference. It says RIGHT ON THE UNIT that it may cause interference.

You might try a power supply that uses a line-frequency transformer and linear regulators, like a Voodoo Labs unit. They cost more for a reason. They don't have an FCC label on them because they don't radiate RFI.

This is a very common complaint with the OneSpot power supply: they work fine until someone adds that sixth or seventh pedal, then all of sudden they're getting white noise (hiss) or a high-pitched digital whine through their pedalboard. I believe this is due to the switching power supply technology these units use. I have no way of knowing if the noise is coming in via the DC power supply leads, or (more likely, IMO) if your pedals are just picking up the radiated RFI from being in close proximity to the power supply.

 

Is it? I (literally) hadn't heard that, my own CS6 is flawless with 7, touch wood for when I add #8 * whistles and does a lucky jig*

 

Why not just get an LPF and zap that noise and move on?

 

It works by removing the high frequencies, not just in the noise, but from the whole signal. It still leaves the lower frequency noise, but we are not so sensitive to it. Unless you like a muted/dull sound I wouldn’t do that.

 

Obviously you’d rather not introduce the noise in the first place, so start with doing that as well as you can. After that if you still need noise reduction:
If your noise is audible while you are playing, and you don’t mind losing some highs, an LPF (which is just a single band of high shelving eq) will be more natural sounding. On the other hand, if you have noise problems only when you are not playing, then a noise gate will work better, although the gate opening and closing can sound a bit unnatural sometimes.

 

smeet hit it on the head. I have used an LPF with great success to tame a hum or hiss in my chain at times.

 

It really depends on the noise you are trying to deal with it. At times I've dug into pulling everything apart, but sometimes combinations of things or proximity to power can cause a slight hum that a simple LPF can tame. You don't want to be cutting too much as you don't want to drastically affect the harmonics of your sound, but if it's a high pitched noise artifact, the LPF will snip it right off. You just set it fully open and slowly dial back the frequency until you have it where you want it using your ears as your guide.

 

Found the problem. You have too many pedals. This is the expected result.

 

With having that many pedals in a row, it's no surprise you're getting a lot of noise.

If you need all those pedals on the board, I suggest getting a pedal switching system. That way instead of your signal going through 12 pedals at the time, it ensures your signal is only ever going through the pedals that you activate.