OSD Menu2. SOUND menuDescriptionSound Mode: There are five preset settings to choose from: Standard, Music, Movie, Sports andUser.Note: Treble and Bass can only be adjusted in User mode.Treble: Adjust the relative intensity of higher pitched sounds.Bass: Adjust the relative intensity of lower pitched sounds.Balance: Adjust the balance of the left and right sound track, or turn off the volume of theleft or right sound track.AVL: Control the volume of the program automatically. Turn on the function by selecting “On”.EQ Setting: Adjuse the curve of 7 bands equalizer.SPDIF: Select from the following options: Off, PCM and Auto.General sound settings can be adjusted according to personal preference with the followingoptions:14Surround Sound: Turn on/off the surround sound function by selecting “off” / “on”.Sound Type: Select from Left, Right, Mixed, Stereo.