Ways of reducing noise with single coil sound hole pickups

geeks, dorks, scammers, slammers, babyback cramers. -2-4-6-8. This 'blob' has been inactive since 2016. who waits around all day to pee in the soup. thanks for the tips I received though. adios.

I've got several acoustics with old De'Armond soundhole pickups, which I just love for the vintage tone that they impart to my sound. They produce a hum which varies depending on the environment but I've found an easy way to eliminate the hum is to ground the circuit when needed (which is usually only during recording sessions for me). I just run a wire with an alligator clip from the input jack (strap button) to under the waistband of my jeans. I've also used electrostatic discharge wristbands, the type used during electronics repair but don't like those as much because they get in the way while strumming.

I've been plagued with noisy singe-coil pickups myself, albeit on a Telecaster. What I ended up doing was to purchase "noiseless" replacement pickups. I'm quite happy with them, though I don't know if you can get them as hole pickups.

I also have a western guitar, but instead of using a hole-pickup, I use a piezo bridge pickup. Those are really cheap and virtually noiseless. You do however, have to do some soldering and drill a hole into the body of your guitar to mount a 1/4 inch female connector.

Unlike using a magnetic pickup, your guitar will still sound like an acoustic guitar when played over the piezo. This may be welcome or undesired, depending on the sound you're trying to achieve.

This is not always feasible in terms of performance, but the strength of the noise often depends on which way you are facing. If you turn left or right you might find a dip in the volume of the noise (the coils are loop antenna, which are directional).

Electro Harmonix, and maybe others, make a special pedal, the Hum Debugger, that is supposed to identify the hum frequency and cancel it, without adversely affecting other parts of the frequency spectrum. I haven't used it, and from what I hear, different people have different opinions on whether it adversely affects the overall sound or not.

For electric guitars, addressing the shielding of the pickup cavity can help; this involves placing (or fixing) a thin film of metal, that is connected to ground, along the inside of the pickup cavity in order to shield it from external signals. Though I don't know of the feasibility of adding additional shielding to an existing acoustic pickup, I mention this because the design of the pickup, and how (or whether) it incorporates any kind of shielding will affect its sensitivity to noise.