A:Answer Hi. The difference in sound level and quality between the main home screen and apps on a smart TV can be attributed to various factors, including audio settings, content source, etc. Different apps may have varying audio quality, depending on the source of the content. To get the best audio experience, you may consider adjusting the audio settings for both the home screen and the apps. You may also visit the following links for more information and guidance:
• https://www.youtube.com/watch?v=YDNtPKtO55Q
• https://www.youtube.com/watch?v=2aF0XLguYBs `Alice