Siri not working when talking to the phone with ios7

Siri works fine with headset/headphones, and raising it to my head. But with updating to ios 7 from ios 6 I am unable to just talk at my or my girlfriends phone while in my hand to get siri to work. Any solutions beyond blowing on the mics, resetting all settings, and doing a factory restore and reset, all of which have been tried.

Thanks!