Reddit reviews Skytronic Ground Loop Isolator

The best option is to spend some money on a decent quality USB supply.(Note, the official supply is crappy!) I'd suggest trying it out with another USB supply if you have one - I find the Samsung ones are pretty good.

You probably don't need 3A unless you're attaching a number of high power peripherals to the Pi.

If this doesn't resolve your issue, then you could buy a audio ground loop isolator, that stops the leaky current from making it to the sound system. Something like this should do the trick: http://www.amazon.co.uk/dp/B000NVWB9O

I had a similar issue to you a while back with noise coming through my amplified outputs:

http://www.reddit.com/r/headphones/comments/27dfv8/daily_headphone_purchase_advice_thread/chzti1m?context=3

I have managed to essentially solve the problem through the purchase of both ground loop isolators (any cheap ish one will do the trick), and a cheap mains conditioner.

Hola! I set all this up last year so it’s a bit rusty!

This is a shopping list for an Xbox One mixer setup similar to mine and you may need some help filling in a few gaps and the wiring!

So the idea is to build a setup to be able to use an awesome mic to talk to the stream as well as party chat ‘at the same time’ (which I prefer over using a headset) but to also be able to hear game/chat/PC audio though a single pair of headphones and control their volume levels in one place with ease.

I don't need sound going out to my PC as the Cap card is getting that from the Console via HDMI.
Streaming Xbox to PC then the WORLD!

Xbox – hdmi into a cap card in the PC Avermedia live gamer hd
http://www.amazon.co.uk/AverMedia-61C9850000AE-Avermedia-Live-Gamer/dp/B007SRYAPO/ref=sr_1_2?ie=UTF8&qid=1447858313&sr=8-2&keywords=live+gamer+hd
This grabs the game audio and that’s that bit done, stream using OBS and boom!

Here's is my shopping list for party chat:

Mixer

http://www.amazon.co.uk/Behringer-802-Premium-8-Input-Preamps/dp/B000J5XS3C/ref=sr_1_1?ie=UTF8&qid=1415150891&sr=8-1&keywords=behringer+mixer
Headset Buddy (Real name, I didn’t make that up!)

http://www.amazon.co.uk/Headset-Buddy-Adapter-PC35-PH25-Computer/dp/B002D41HKS/ref=sr_1_3?s=electronics&ie=UTF8&qid=1421341934&sr=1-3&keywords=headset+buddy

Xbox Chat Thing:

http://www.amazon.co.uk/Xbox-One-Stereo-Headset-Adapter/dp/B00IAVDOS6

Cable from Buddy to Mixer:

http://www.amazon.co.uk/Hosa-CMP159-Stereo-Breakout-10-Feet/dp/B005HGM1D6/ref=sr_1_1?ie=UTF8&qid=1415150937&sr=8-1&keywords=hosa+cables

Cable from Mixer to Buddy!

http://www.amazon.co.uk/HosaTech-CMS-105-3-5mm-Stereo-Interconnect/dp/B000068O35/ref=sr_1_1?ie=UTF8&qid=1447857349&sr=8-1&keywords=3.5mm+TRS+to+1%2F4+inch

Xbox Mixer(s)

Astro Mixamp (I use)
http://www.amazon.co.uk/ASTRO-Gaming-3AM99-HBU9X-975-ASTROGAMING-MIXAMP/dp/B004L6C6BK/ref=sr_1_4?s=videogames&ie=UTF8&qid=1447856882&sr=1-4&keywords=astro+mixamp

Earforce DSS (an option!)

http://www.amazon.co.uk/Force-Channel-Dolby-Surround-Processor-Mac/dp/B003O0KICS/ref=sr_1_1?s=videogames&ie=UTF8&qid=1421378828&sr=1-1&keywords=dss1

Ground Loop things:

http://www.amazon.co.uk/Headphone-Ground-Isolator-Filter-Stereo/dp/B00INV5LB6/ref=pd_sim_sbs_23_1?ie=UTF8&dpID=41-9H3Hc3mL&dpSrc=sims&preST=_AC_UL160_SR160%2C160_&refRID=1TTNMJANJDTK26VVSAE7

Although I have used these ones because I didn’t see the ones above!

http://www.amazon.co.uk/AV-Link-201-086-Skytronic-Isolator/dp/B000NVWB9O/ref=sr_1_1?ie=UTF8&qid=1447857227&sr=8-1&keywords=Ground+Loop+Isolator

Mic wise any XLR mic is fine!

Here is a link to a image i found that kinda helps piece it all together! http://imgur.com/UYaQQUZ

Here is a quick vid of my setup, happy to help if i can! http://www.twitch.tv/drunkiemunkie/v/26306849

Heres is my latest Xbox One vid with party chat but it picks up the Public Lobby if they speak!
http://www.twitch.tv/drunkiemunkie/v/31799799

dM

Britfag. Would this do the monkey?

http://www.amazon.co.uk/AV-Link-201-086-Skytronic-Isolator/dp/B000NVWB9O/ref=sr_1_1?ie=UTF8&qid=1452539733&sr=8-1&keywords=ground+loop

A ground loop maybe. If it is, this will fix it at a very reasonable cost: https://www.amazon.co.uk/AV-Link-Ground-Loop-Isolator/dp/B000NVWB9O

Like this?

Update 2: I have found the cause of the problem and what was needed to fix. I will post below what i found so if anyone else gets this, they can fix it.

https://www.youtube.com/watch?v=wnN31snqR9o
Everything needed to fix this in this video. It was a grounding problem caused by a crappy PC. This little box eliminated all static noises, and has actually increased audio quality. With this i also bought a 2x1/4" jack to RCA cable, as that is the type of input my monitors take, all equipment used listed here: (UK Amazon)
Ground Loop Isolator: https://www.amazon.co.uk/AV-Link-Ground-Loop-Isolator/dp/B000NVWB9O/ref=sr_1_1?ie=UTF8&qid=1522861082&sr=8-1&keywords=ground+loop&dpID=413Ja6ofpeL&preST=_SX300_QL70_&dpSrc=srch
2x1/4" Jack to RCA: https://www.amazon.co.uk/dp/B006H0E4YA/ref=psdc_407727031_t2_B004EBKV1Y
(Amazon.com products):
Ground Loop Isolator: https://www.amazon.com/InstallGear-Ground-Isolator-Noise-Filter/dp/B077Y5DLBB/ref=sr_1_2?ie=UTF8&qid=1522861210&sr=8-2&keywords=ground+loop+isolator
2x1/4" Jack to RCA: https://www.amazon.com/dp/B000068O19/ref=psdc_3236443011_t1_B004NCYVY2

Jel zna neko kako se ovo zove na Srpskom? https://www.amazon.co.uk/AV-Link-Ground-Loop-Isolator/dp/B000NVWB9O

Ground loops work in mysterious ways, but considering all three of those components have separate earth connections, it's almost certainly a ground loop.

The ground loop probably isn't between the USB and the DAC, though - it's probably between the DAC and the speaker. Use a transformer-based RCA isolator like this - https://www.amazon.co.uk/AV-Link-Ground-Loop-Isolator/dp/B000NVWB9O (a million different companies sell them)