i don't know why but almost every 3 minutes im hit with you cannot talk for 30 seconds.. and its getting annoying half the time im not talking it just pops up.. anyway to fix this?
I had this same problem, and I tracked it down to the Guild Event Manager addon. That seems to spam messages into a channel called "gemchanneldefault" or something like that in game.
Try disabling addons, especially ones for social purposes like GEM. Also, make sure to leave the channel in game to avoid the auto spam.