LG S77TY Owner's Manual page 14

Speaker sound based on input channels
Sound Effects
Output
Input
Rear speakers not
Rear speakers connected
connected
AI SOUND PRO
Sound customised with artificial intelligence
2.0 channels
5.1 channels
7.1 channels or more
7.1.4 channels
STANDARD
You can enjoy optimised sound.
2.0 channels
5.1 channels
7.1 channels or more
7.1.4 channels
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