I had issues with crosstalk (microphone picking up headphones sounds) and thought it was caused by headset.
So I removed headset's original cable, put 4 pole female 3.5mm jack on the headset and connected it with cable to pc through 4 pole to 2x 3 pole jack splitter. Result: Even more cross talk.
So I have experimented with different connections and this is what I have found out about amount of crosstalk:
- Front PC audio connectors > Rear PC audio connectors
- Separate ground wires for headphones and microphone > Common ground wires
Front audio connectors have common ground wire from connectors to mother board. Rear audio connectors have also common ground. So shorter common ground means less cross talk? From what I understood wire resistance and microphone impedance also affects amount of crosstalk, but I don't know what could I do about it.
What should I do to reduce crosstalk as much as possible?
Should I put up with discomfort of running 2 wires to rear PC audio?
Should I just slap USB sound card into headset and call it a day?
Is there an optimal solution? Thanks in advance for all advices.