ContributionsMost RecentMost LikesSolutionsRe: Audio Sync https://forums.cox.com/forum_home/tv_forum/f/tv-forum/22816/audio-on-cox-dvr-not-synced-with-video Re: Audio Sync What DVR do you have? I had similar issue. I was able to fix this problem under the audio menu on the DVR. Audio on Cox DVR not synced with Video I have called Cox many time to complain that my DVR sound does not match the video. They usually just reboot my cable box and it is ok for a couple hours. Last week I scheduled an appointment for a technician to check out my cable signal. It was confirmed it was fine. Technician replaced DVR with new Cisco DVR box. The problem did not go away. Today I fixed problem. 1. Press Contour button 2. Select settings (icon al the way to the right). 3. Select Device Setting 4.Select Audio 5. Select HDMI Audio Output: 6.Change from Auto Detect (Dolby Digital 5.1) to Expert mode Sound delay instantly fixed. I hope this is useful to someone