i was on my mic like always then over a few days people started saying speek up your mic is low. it got lower and lower until all this sudden it just stopped. i would screen in it to see it there is a tiny noice but no. i got new mics and everything but it still wouldnt work. its not my steam i checked a lot of stuff but if i can have any pointers it would be great.
I was gonna say change your mic but you have done that so.... goto your control panel, audio, recording devices, advanced, make sure mic boost is enabled. There is built in windows voice software as well, accessable through control panel again, see if windows works with your mic. It may also be a config issue with your teamspeak or vent and both have test modes maybe your voip client requires tweaking.