E4 Experience: ClearOne Presents BMA CT, a Patented Ceiling Tile Beamforming Mic ArraySeptember 26, 2019 | Home / September 26, 2019 rave-video / E4 Experience: ClearOne Presents BMA CT, a Patented Ceiling Tile Beamforming Mic Array E4 Experience: ClearOne Presents BMA CT, a Patented Ceiling Tile Beamforming Mic Array