Audio to be used during live broadcasts for first time Move is part of an expansion of the RefCam system The Premier League will permit audio of on-field conversations between players and referees during live broadcasts for the first time this season. The use of audio by the Premier League’s domestic rights holders, Sky Sports and TNT Sports, is part of an expansion of the RefCam system, which became a permanent feature of top-flight coverage last season after a six-week trial at the start of t…