Hi,
Please do try to uninstall/reinstall the sound card driver.
- Go to Device Manager and uninstall the sound card driver.
- Reboot your PC once uninstalled and it will automatically reinstall the driver.
- After the reboot do uninstall/reinstall the drivers as well of your 2 headsets.
- Also make sure to run Windows Update and install all the important updates there is.
Here's the link on how to update your Turtle Beach:
http://support.turtlebeach.com/entry/830517548/
Here's how with Blue Snowball:
http://www.bluemic.com/snowball/#software_setup