High gain pedal noise question

[caspercody]

When using a high gain pedal, and everthing turned on and not playing I get a loud white noise (not sure how to describe the noise). This is not oscillation, squalling, or feedback noise. If I move around there are spots where the noise is almost gone, than move one step left or right and it is back. Once I play I do not hear this noise. Is this just the noise of the signal being amplified so much from the high gain pedal? Or might there be a way to get rid of this?

The pedals are all powered by 9v batteries.

Thanks
Rob

[petemoore]

When using a high gain pedal, any noise present gets a lot of amplification gain. and everthing turned on and not playing I get a loud white noise (not sure how to describe the noise).
  That's ok, I guess we know or have known this noise.
  This is not oscillation, squalling, or feedback noise. If I move around there are spots where the noise is almost gone, than move one step left or right and it is back.
  What about when you turn the guitar down, connecting the sources to ground? Mine goes 'silent' when I'm in noise-zone distortion modes.
  Once I play I do not hear this noise.
  It is still there, but these noise-floor 'waves' or 'foams', their form is so tiny compared to the guitar that^, tiny can be big enough to irritate 'loudly' the non-musicality tone.
  Is this just the noise of the signal being amplified so much from the high gain pedal?
  Turn your guitar down to off, see what that does. Try unplugging it in case.
  It's hard to tell what is in 'signal', these steps give clues.
  Or might there be a way to get rid of this?
  Might is the operative word here.
  How's the cable compare to the real nice cable in terms of noise ?
  How are the pickups in terms of noise pickup ?
  How do the distorters compare to distorters in terms of noise ?
  Signal gets in, noise gets in, shark gets in the water...
  So, easy clunky 'ol noise gate takes care of it in some situations, ground loop ID is another possible venture for noise resolutions.
  I'ts possible to get massive disto with mini-noise floor, it seems to depend on the room.
The pedals are all powered by 9v batteries.

[anchovie]

This is why quite a few guitarists who use a lot of gain also use a noise gate.

[Processaurus]

White noise is probably the most natural and least objectionable kind of noise for a high gain pedal circuit to make.  Hums and buzzes and clipping and crackles and clicks and pops and squeals and bleedthrough mean something's not all it could be.  Though at geofex there is an article called when good opamps go bad, that notes unusual levels of hiss can be the sign of a damaged opamp.

You can ground the input to each stage in a circuit through a cap to find where the noise is coming from.