I am not an electrical engineer, but because I broke the 3.5mm jack of my headphone, I decided to mod it to have a removable cable.
It's a headphone with mic (HyperX Cloud2). It works well when I plug a 3 conductor audio cable into it (left and right speakers working properly.)
The issue is when I use a 4 conductor audio cable, the sound becomes really weird, kind of echoish.
I wonder what the cause could be.
- Did I solder wires on wrong pins?
- Are some cables still insulated?
How could I test this to know where this issue is coming from?