Perform An Audio Test. To check the audio on your LG TV, perform a simple audio test. Here's what you need to do: Go to Settings - All Settings. Go to Support - Additional Settings. Choose 'Sound test'. A sound test will set your volume to 20 automatically. If you hear sound, you're good. If not, read on!
Check the Volume. The next thing you must do is check the volume levels. The volume on your TV may be too low or muted, and you may be experiencing the issue. Sometimes, the volume low button on your TV panel may be stuck and automatically set the volume to a low level. If that's the case, you can not increase the volume levels from your TV
Method 2: Force Stop and Relaunch YouTube. If you encounter issues with sound when watching YouTube from your TV, and the problem is not from the volume level of your TV, you can try stopping and relaunching the app on your TV. If the YouTube app is launched on your TV, go to Settings. Scroll to YouTube and click Enter.
It's possible that because of a software glitch or long use, your TV performance may have gone down, causing the volume problem on your Samsung TV. To fix this, try restarting your television. Hold down the Power button on the remote for about 10 seconds until your TV turns off and then on again.
Restart your Apple TV Remote. Press and hold the TV icon button and volume down button at the same time for ~5 seconds until you see the remote's status light flash off then back on. Let go of But if you're concerned that the maximum volume isn't what you remember, don't fret. Simply changing the Digital Output Audio Format to PCM can help. Samsung TV or projector has low audio when watching movies

Switch off your TV and then unplug it. After 15-30 minutes, plug the TV back in then press and hold the power button for a few seconds. If you are attempting to check the picture from a cable box or other devices, swap it for another device. However, if it doesn't work, consider accessing the setting menu on your TV.

5. Check Your-Top Box. The volume settings of your Vizio TV work well. But, the Tv still has o audible sound. It is time to check the set-top Box or dth box. If the box volume is set at zero, your Tv will not offer any output audio. First, check the volume of the set-top Box using the relevant remote.
Check to make sure the volume level on your TV is set above zero. You can do this using the Up & Down (sometime + and -) buttons on the VIZIO TV remote. Make sure the TV is not muted. Make sure your TV speakers are turned 'On'. Press the Menu or button on your VIZIO remote. Use the arrow keys to highlight 'Audio' or 'Audio Settings' and press
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    • volume on tv not working