humming sound when line-in being used

[Chow15]

Alright so let me explain the setup I currently have and the issue I am facing.

So, I have a soundblaster x-fi 5.1 pro as my soundcard. I have my headset plugged into it for my PC audio and the line-in being plugged into it for my xbox 360 sound. I did this because I didnt want to unplug and replug my headset into different spots when I want to flip on my xbox, as I use it often. This setup grants my xbox sound aswell as my pc sounds to be played into my headset at the same time, which I want.

Now the issue I am facing is that once I start turning up my sound I get a humming noise that gets progressively louder as the sound gets louder. I have concluded that it when the line-in is plugged in, theres a humming sound and once its removed, the humming sound ends. I absolutely want this line-in plugged into my card for ease of access but I do not want this humming sound to continue, does anyone have any fixes?

 

[Chow15]

Is anyone going to reply?

 

[Natsukage]

Hello.

The issue seems to lie with your XBOX 360 wiring or adapters. Usually, you should have no humming with this setup. How are you wired? Directly from the white/red cables of the X360 into a RCA to 3.5mm adapter? Please tell us more about your X360 setup.

If you have a single ground wire that is broken, or a bad connection, you will get humming. If you have another adapter, I suggest using it instead to confirm.

 

[Chow15]

Hello.

The issue seems to lie with your XBOX 360 wiring or adapters. Usually, you should have no humming with this setup. How are you wired? Directly from the white/red cables of the X360 into a RCA to 3.5mm adapter? Please tell us more about your X360 setup.

If you have a single ground wire that is broken, or a bad connection, you will get humming. If you have another adapter, I suggest using it instead to confirm.

Thats exactly the setup, I can buy new wires pretty easily so I could test that theory when I get the chance to run to the store

 

[Natsukage]

I suggest trying another adapter when you can if the wires are all properly inserted. I haven't heard about or experienced the X360 humming from the RCA jacks yet, so it shouldn't be that.