Hi Zac,
To better assist you with the audio sync, I would suggest to contact Customer Service directly as they are better suited for troubleshooting your unit.
Please call us at 1-800-SAMSUNG (ask for Soundbars), available 8 AM – 12 AM EST, 7 days a week.
For additional support resources, visit us on the Samsung website and click on the ‘Support’ link in the upper right corner of the homepage.
~Samsung Solutions