Temperamental Audio Volume
When there is a difference in volume between channels, although you didn’t turn the volume up/down, check whether “Auto Volume” is configured to “On”. To enhance the clarity of human voices, set the Clear Voice function. You can enable or disable the function by changing the commentary or sound-multiplex Settingss.
- If you are using a set-top box, Auto Volume and Smart Sound Mode features will have no effect on resulting audio quality.
- Settings methods depends on the model.
How to set the Clear Voice for [2023 WebOS23], [2022 WebOS22] and [2021 WebOS6.0]
Press the

button on the remote control and select [All Settingss] → [Sound] → [Select Mode] → [Clear Voice Pro].
- Turn on the TV and press the [Settingss] button on the remote control. From [Settingss], select [All Settingss].
- Select [Sound] → [Select Mode].
- Select [Clear Voice Pro].
How to set the Clear Voice for [WebOS 5.0 or before]
Press the

button on the remote control and select [All Settingss] → [Sound] → [Sound Mode Settingss] → [Sound Mode] → [Clear Voice].
How to set the Auto Volume for Non-Smart TV models
- Set the Auto Volume “On”.
- Set Clear Voice feature and Smart Sound Mode “Off”.
- Auto Volume feature adjusts the volume appropriately between channels and within a channel automatically keeping it within a set range preventing sudden loud bursts or quiet whispering.
- Clear Voice feature is one that emphasizes human voice frequency making dialogue between characters clearer and stand-out amidst very loud background noise.
※ If the sound other than voice, such as background music, is not clear, set the Clear Voice option “Off”.
Note
If you are using Smart Sound Mode, the optimized sound option respective to each particular content is automatically set so the sound quality may change, which will lead to difference in volume between channels.
※ This feature is provided on some models only.
How to set the Clear Voice and Auto Volume for TV Models manufactured prior to 2011
- [Settings] → [Audio] → [Auto Volume] : On
- [Settings] → [Audio] → [Clear Voice] : Off
- [Home] or [Smart] → [Settings] → [Sound] → [Volume Mode] → [Auto Volume] On
- [Home] or [Smart] → [Settings] → [Sound] → [Clear Voice] Off
- [Home] or [Smart] → [Settings] → [Sound] → [Smart Sound Mode] Off
Should above troubleshooting tips fail to improve sound quality, there is a possibility root cause could be peripheral device. To determine whether a television or video source issue, it is recommended to run a sound test on the TV.
Performing Sound Test
Start the Sound Test to check that the sound signal output is normal, and then select whether there is an error. If there are no problems in the test, check the connected external device or broadcast signal.
Note
Should the sound test fail to produce expected results and you ensured TV not in Mute mode while Internal TV speaker option was selected in the Audio menu prior to running such test, then there is an issue about the TV sound that only a certified technician could fix. Please click
here to contact LG Customer Service to arrange for service.