Wierd noice from microphone while charging

[JansiBoy]

When im in a game of CS i always have my laptop charging for the best FPS performance.
But recently i got a new headset and everytime i charge my laptop my headset mic gives this wierd high pitch noice
Hear the pitch here: https://www.youtube.com/watch?v=4ut5T7d7ik8&feature=youtu.be
Does anybody know a way to fix this problem without unplugging my laptop?

 

[the nerd 389]

That noise is from the switched mode power supply causing interference. One option is to get an external USB sound card. You can find them from $20 for a really cheap one to several hundred for an audiophile grade one. As far as real world performance, you won't notice a difference over about $60 in most cases. Another option is to use a USB headset, but those normally aren't very good. They can be worthwhile if you just need something to work, though.

 

[JansiBoy]

Well im not sure if its my headset thats the problem. Because my laptop's headset sound/mic unput/output is broken, so i got this small thing that changes it to a usb. It doesnt say anything about a usb sound card, but mayby that is the problem?

 

[the nerd 389]

That's a USB sound card or USB DAC. It connects to the computer via USB, and headsets via 3.5mm TRS or TRRS (standard headphone connection). Odds are that it's the problem. Try a different model.

The Sound Blaster E1 is a good option at a fairly reasonable price. There may be others that would work, as well.

 

[JansiBoy]

But is there any way to fix this with the one i got?
I kinda dont want to use more money one this little thing, so if there is a software or something that can fix it, it would be awesome!

 

[the nerd 389]

There is a chance that you could fix it by:
A) Getting a powered USB hub, and connecting the DAC through that. (Be sure it's plugged into the wall, or it won't help much.)
B) Soldering a bypass capacitor to the power rails inside of the DAC, or
C) Getting a USB extension cable, and connect a bypass capacitor to it between the +5V line and Ground line. Connect the DAC to the computer through that cable.

B & C would not solve the problem completely, but would reduce the issue. The effectiveness of A depends on the quality of the USB hub.