LG 55XF2B User Guide

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Sound Settings
To select a Sound Mode  
   Sound   Sound Mode
The best sound quality will be selected automatically depending on the video type currently being watched.
 
Standard: this sound mode works well for content of all types.
 
News: optimizes sound for watching news.
 
Music: optimizes sound for listening to music.
 
Cinema: optimizes sound for watching movies.
 
Sports: optimizes sound for watching sports. 
 
Game: optimizes sound for playing videogames.
To use the Sound Effects function   
   Sound   Sound Effects
 
Clear Voice ll: enjoy clearer sound with the three-level adjustment.
 
Equalizer: manually adjust sound by using the equalizer. .
 
Balance: adjust the output volume for the left speaker and the right speaker.
 
Reset: reset the sound settings.
To select a Volume Increase Rate,   
   Sound    Volume Increase Rate
You can set the volume range by selecting any of LowMediumHigh.
To sync audio with video 
   Sound   AV Sync. Adjust
 
Speaker:  adjusts the sync between video and audio coming from external speakers, such as those 
connected to the digital audio output port, LG audio equipment, or headphones. From the default 
value, the closer the value is to -, the faster the sound output becomes, and the closer the value is 
to +, the slower the sound output becomes.
 
Bypass:  audio coming from external devices without delay. Audio may be outputted earlier than video due 
to the processing time for video that is inputted into the monitor.
To Run a sound test  
   Sound   Sound Test
Run a sound test to check that sound signals are outputted normally, then solve any problems by selecting the 
relevant option on the screen. If there are no problems with the Sound Test, check connected external devices.