Hello,
I am currently working for an organization to help them with streaming—I started after an AV company helped install a setup for my organization. Unfortunately the setup uses the Panasonic AW-HE40HPK IP camera, which, as the “Tested IP Cameras” section in the Pearl 2 manual says, “the Panasonic AW-HE40 did not consistently synchronize its time with Pearl-2”.
Which is exactly the problem I am having: “source time and system time not synchronized”, which manifests as major (500ms+) desyncs between audio and video. It sometimes becomes out of sync during a stream, but usually we apply a fix everytime before stream and it lasts for the 1-2hour stream.
My organization ‘fixes’ the issue by adjusting the “audio delay” in the Pearl 2 RTSP input page for the camera. By increasing (and decreasing, alternating) the audio delay by 1ms before every stream. This causes the audio and video to come back into sync.
From my understanding, the “fix” just forces the camera (or feed) to restart.
My questions are: is there a permanent fix for this? Is this a problem that can be solved by firmware updates on Epiphan’s side? Is there a fix or different feature that might not be focused on fixing this camera situation, but fixes or better monitors audio delay?
I was thinking a last ditch effort I could look into is a script or program that restarts the feed/camera automatically before stream/recording to fix the audio delay.
I’ve been intermittently attempting to fix this problem the last few months; looking on this forum, the manual for the Pearl 2, the manual for the Panasonic camera, etc.
I’m very stumped and the only attempt in fixing this that I have tried so far was verifying the cameras are connecting to the Pearl 2’s local time server (it is).
I see this problem is multiple years old and there is no solution for it yet, so I hope this brings attention to the problem if Epiphan could fix it in a future firmware update, or if someone comes up with a solution they could post it here for future users.