It's interesting how often "essential" house rules change mechanics for the players, rather than adjusting encounters to fit what they've brought to the table.
Originally Posted by Siegel
All combat happens in a zone of muteness? Why can't i talk to my buddys especially if it is just one short sentence?
If it's not your turn, such dialogue should be treated as reactive, not active. If the result changes another player's action, I see no issue with it costing you one action from your next turn.