At a Glance
• Possible causes of echoing sound are many.
If the Digital Sound output is set to [Auto], then there will be a delay in sending outputs to the external speaker compared to the TV speaker due to voice signal output processing, and thus there may be echoing sounds.
• If [Use Multiple Speakers] is enabled in the audio settings, the sound may be echoed or out of sync due to sound interference.
➔ This may be reduced by enabling the AV sync on the sound bar.
➔ If the sound echoes, set [Sound]→[Sound Out] to a single speaker.
Try This
To change Digital Audio Out to PCM
• [2021 WebOS6.0] or later: Select Settings ( ) on your remote control and select [All Settings] → [Sound] → [Advanced Settings] → [Digital Sound Output] → [PCM].
• [2020 WebOS5.0] or earlier: Select Settings ( ) on your remote control and select [All Settings] → [Sound] → [Additional Settings] → [Digital Sound Output] → [PCM].
➔ Setting in [2021 WebOS6.0] or later
1. After turning on the TV, press the [Settings] button on the remote control.
From [Settings], select [All Settings].
2. Select [Sound] → [Advanced Settings].
3. Set [Digital Sound Output] to [PCM].
To change the output speaker when the sound echoes
※ Check the connection types to the TV and the audio devices beforehand.
E.g. optical cable/optical connection, HDMI cable connection, and Bluetooth connection
• [2022 WebOS22] [2021 WebOS6.0]: Select Settings ( ) → [All Settings] → [Sound] → [Sound Out].
• [2020 WebOS5.0] or earlier: Select TV Settings ( ) → [All Settings] → [Sound] → [Sound Out].
➔ To set from [2022 WebOS 22] [2021 WebOS 6.0]
1. After turning on the TV, press the [Settings] button on the remote control.
From [Settings], select [All Settings].
2. Select [Sound] → [Sound Out].
3. From [Sound Out], change the speaker and the sound as you want.
➔ [2020 WebOS5.0] or earlier
1. After turning on the TV, press the [Settings] button on the remote control.
From [Settings], select [All Settings].
2. Select [Sound] → [Sound Out].
3. Select the right speaker for the type of connection and check the sound.
If the sound is slightly out of sync, use the AV Sync on the sound bar.
1. When the sound echoes, press the AV Sync on the sound bar remote control.
2. Check the sync rate displayed on the sound bar and adjust the reverberation by pressing the left/right arrow on the remote control.
3. You can adjust it in the LG SOUNDBAR App.
This guide was created for all models, so the images or content may be different from your product.
