Hi Gramma,
To start, we recommend making sure your TV is running the latest firmware, as updates can include improvements to sound performance: On your remote, go to Home > left directional key > Settings > Support > Software Update> Check for Updates
If volume levels still seem too low, you can improve sound performance by adjusting a few key settings:
First, on your remote, go to Settings > All Settings > Sound > Sound Mode and try Amplify to boost dialogue and upper tones.
To adjust your Sound Mode: Navigate to: Settings > All Settings > Sound > Sound Mode. From there you can toggle between the various modes to pick one that suits the content you are watching.
Next, check out the Auto Volume feature: This feature helps maintain consistent volume levels across content and input sources. Turn it on under: Settings > All Settings > Sound > Expert Settings > Auto Volume = On
I hope this helps! For further assistance, contact Samsung Support at 1-800-SAMSUNG, 8AM – 12AM EST, 7 days a week. LiveChat agents are also available on our website under ‘Support.’
~ Samsung Advisor