Mic Troubles With Mumble

[Damorion]

For the past 2 weeks to about a month, my mic (which is from a Logitech G430 headset) has had an echo to it whenever I speak (I use P2T), even though I have echo disabled in the settings. I've been trying to fix it for the past hour and now it sounds like I'm coming from a radio. I am pretty livid right now as there seems to be no way to fix any of this. Whether I uninstall/reinstall or put the settings a certain way, nothing seems to work. Everything else, such as Skype and Gmod, work fine, but with Mumble, it's a no-go.

[kissaki]

You disabled echo in the OS audio settings ("listen to this device") and in Mumble?

If this is an issue with your hardware insulation - did you try enabling Mumbles echo cancellation?