[SOLVED] Headphones with splitter causing buzz. Once mic is unplugged, buzzing stops.

[buma]

With my headphones plugged into my DAC/AMP and my mic plugged directly into the Motherboard of my PC, there is a buzz. Once I unplug the mic the buzzing stops.
What exactly can cause something like this?

-DAC is a Fosi Audio Q4
-Headphones is Sennheiser 598HD
-Mic addon is V-MODA BoomPro (it replaces the headphone cables).

 

[jojesa]

Loose connection, faulty cable or a faulty Mic could cause a buzzing noise. Check them in another device.
A audio software using the Mic could also cause buzzing sounds.
Check that all your cables and connections are firmly in place.

 

[hang-the-9]

With my headphones plugged into my DAC/AMP and my mic plugged directly into the Motherboard of my PC, there is a buzz. Once I unplug the mic the buzzing stops.
What exactly can cause something like this?

-DAC is a Fosi Audio Q4
-Headphones is Sennheiser 598HD
-Mic addon is V-MODA BoomPro (it replaces the headphone cables).

Sounds like a ground issue, the ground in the headphones is going into separate devices, on in the DAC, other to the motherboard. I bet if you plug both ends in the motherboard you won't have this issue.

"best" solution is to get a DAC/APM with a built in headphone jack or use a USB mic.

Here is a fun older video about this

View: https://www.youtube.com/watch?v=BOVMKnnO9L8


A bit less fun but probably more relevant and useful

View: https://www.reddit.com/r/headphones/comments/4kbwad/troubleshooting_linenoise_with_ampdac_on_pc/