Hi Im using a xperia z and a sony ericsson Bluetooth unit. When I connect the BT to the Z, it activates the google voice search function. If I talk with others or lissen to music while I have the BT on, a voice is often coming and tells me that if i tried to say something, she didnt heard it. Now and then the same voice tells me something about function and locked phone, that I have to unlock it before something get access to some functions, or something like that Different settings in Google app Settings Voice "Ok Google" Detection have been tried, but it doesnt heltp This voice is annoying and I want to turn it off. How can I get 110% rid of this voice?