InfoComm 2019: Sound Control Technologies Shows RCDDA for Adding HDMI to Polycom EagleEye IVJune 19, 2019 | Home / June 19, 2019 rave-video / InfoComm 2019: Sound Control Technologies Shows RCDDA for Adding HDMI to Polycom EagleEye IV InfoComm 2019: Sound Control Technologies Shows RCDDA for Adding HDMI to Polycom EagleEye IV