: Many modern LG TVs have a built-in "Dolby" app or internal demo section for testing Atmos and Dolby Vision. Where to Find Physical Discs
To get the best results, you should download these files directly to a USB drive rather than streaming them, as streaming often compresses the audio. download dolby atmos demo disc
Play the bass sweep (from the 2018 disc). It drops below 20Hz. If your subwoofer rattles or chuffs, lower the gain. If you feel nothing, you need a better subwoofer or placement. : Many modern LG TVs have a built-in
: You can download individual trailers like "Amaze," "Leaf," and "Shattered" directly from Dolby's Official Support Guide as MP4 files for testing. download dolby atmos demo disc