This means the TV will lower the volume during intense action scenes (explosions, car chases) and boost it during dialogue-only portions.
Look for a section for audio and check for a setting called “ Dynamic Range Compression” or “ Dynamic Range Control.” Try setting this to “High” or “Maximum.” If your TV has this option, setting this to its highest level will flatten the range of volume, normalizing the loudest and the quietest sounds to a more consistent and equal level.
