Operating EnvironmentPerform a Voice Recognition Environment Test prior to using Voice Recognition to test the level andclarity and the ambient sound of the surrounding area. Ambient noise can cause Voice Recognitionto malfunction. (Suitable Ambient Noise Level: Less than 40 dB, *40 dB - the sound at library orresidential area in the daytime.) Visit the Samsung website for a list of standard voice commands.The voice recognition rate varies depending on the volume/tone, pronunciation, and ambientenvironment (TV sound and ambient noise).Voice Recognition TutorialScreen Menu > Smart Features > Voice Recognition > Voice Recognition TutorialThis lets you familiarize yourself with the basics of using Voice Recognition. Run Voice RecognitionTutorial or activate Voice Recognition.