Samsung UN75ES9000F E-Manual page 436

To run the Voice Control Environment
Test, to be sure the room your TV is in
will work properly with Voice Controls.
Sit or stand no more than 13 feet away
in front of the TV. Choose Start to
begin the Voice Control Environment
Test. While remaining quiet select
Next to conduct the Noise Test. This
measures the ambient noise in the
room.
N
The ambient noise in your room