LG CineBeam 4K HU70LG Owner's Manual page 102

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[Sound Out]
The configurable items differ depending upon model.
• When [Instant Game Response] is set to [On], audio delays may occur if you set
[Sound Out] to [Bluetooth]/[Optical]/[HDMI ARC].
Switch to [Internal Projector Speaker] or change
[Sound] [HDMI Input Audio Format] to [PCM].
Playing audio through the projector's internal speakers
(Q. Settings)
Audio is played through the projector's internal speakers.
Connecting and Using an Audio Device Supporting Optical
(Q. Settings)
You can connect an audio device that supports [Optical] to the optical digital audio
output port to enjoy your projector's sound in richer quality and greater convenience.
• Only available for models with an optical digital port.
• You can use the projector remote control to adjust the volume of the connected
device.
• You can set [Digital Sound Out] ([Auto]/[Pass Through]/[PCM]) and [LG Sound
Sync] ([On]/[Off]).
Hearing Sound through an External Audio Device Connected via a HDMI (ARC)
Port
(Q. Settings)
Sound from the projector can be output through an external audio device connected via
a HDMI (ARC) port.
•
Select [HDMI ARC] to automatically turn on SIMPLINK. Once SIMPLINK is turned
off, the output speaker settings automatically revert to the default settings for
uninterrupted audio output.
• You can set [Digital Sound Out] ([Auto]/[Pass Through]/[PCM]).
[Sound] [Sound Out]
[Sound] [Sound Out]
[Sound] [Sound Out]
(Q. Settings)
[Internal Projector Speaker]
[Optical]
[HDMI ARC]