Sound problems (Tom Clancy's Rainbow Six: Siege)

Good day, faced with the problem (before such was not) had problems with sound when I run the drone during the training,my boat jumps silently, but it's bearable,then while watching kill cam or when I'm watching a teammate,I have partly no sound (for example I can't hear the sound of a shot) just happens that the confused positioning of the sound (like the enemy to my right,I hear the sound of his steps on the left and Vice versa) .Tell me if anyone is experiencing similar problems? This is a bug of the patch? or is the problem on my side? Again this never happened before,in other games of problems is not noticed.