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