To set Auto Volume
SETTINGS AUDIO Auto Volume
Sets Auto Volume to On and volume output from channel to channel is automatically adjusted for convenient TV watching when clicking through different channels.
To set AV Sync
SETTINGS AUDIO AV Sync. Adjust
[This feature is available on certain models only.]
Synchronizes unmatched video and audio.
Select AV Sync. Adjust to On to synchronize audio output (TV speaker or External Speaker) with the video.
To use Sound Optimizer function
SETTINGS AUDIO Sound Optimizer
[This feature is available on certain models only.]
Allows optimized sound for individual TV installation.