Noise in a sound system is a complex issue. There are several things that you can do to
minimize the noise:
- Shield your guitars control cavity and connect the shield to ground
- Shield the bottom and halfway up the sides of your pickup cavities and connect the shield to ground
The preceding two items will help with the pickups amplifying EMF/EMI that is present in the system/environment.
If you want to try to reduce some of the noise in your system/environment these are some things you can try:
- Make sure that none of your cables are not adding noise to the signal chain
- Verify that your electrical system is fault free and has a good earth ground connection (you can buy a tester for less than $15 at most home improvement stores)
- Ensure that you have good power filtering on your rack ($50 power conditioners have no meaningful power filtering regardless of what the manufacturer claims)
- If possible, eliminate fluorescent bulbs and dimmers, these add a lot of noise to the environment
- Look for other noise sources (wireless routers, cell phones, AC motors, refrigerator/freezer motors, fans, power tools, power lines)
- Ensure that you have no ground loops
- Run your computer from a UPS that does not draw directly from the AC electrical system. Alternatively if your computer is a laptop, run it on battery power.
- Ensure that the chassis of components in your rack do not touch and do not have their grounds bonded (use Humfrees)
- Lift the ground between the Axe and your power amp
- If all else fails include an EBTech Hum Eliminator HE-8 in your rack and run your inter connections through it (DO NOT run power amp output through the HE-8!!)
- If using 4CM, use Humbuster cables for the two output runs from your Axe FX to the amp
- Adjust the noise gate on your Axe FX
That noise in your recording sounds like it could be a router or cell phone.