Audio Suddenly Off Sync During Stream

[jon2043]

Hello,

I helped a friend live-stream their wedding yesterday, and encountered a problem I have never seen before. Before we went live, I did a audio sync test to make sure everything was good to go, and after going live, everything seemed fine. I was running three cameras into an ATEM mini pro, and then running the ATEM into OBS as a webcam. From my end, nothing seemed wrong with the stream. The audio I was monitoring was in sync for the entire stream.

Unfortunately, however, for the live-stream viewers the audio cut out for about seven seconds about 45 minutes into the stream. Then the audio returned from where it had cut off, but since the video never cut out, the audio was about seven seconds behind the video for the rest of the stream.

Again, I was monitoring OBS for the entire event and could not detect any problems from my end. It was not until after the wedding that someone let me know that the audio went out of sync towards the end of the event. We were streaming to a service called EventLive, and I originally asumed it was a problem on their end, since nothing seemed wrong in OBS. But when I watched the recording made from OBS, the problem was there, too. So it must have been an obs problem. I asume the only thing I could have done in the moment was to kill the stream and restart OBS.

Can anyone help me figure out what went wrong?

The audio would have cut out around 17:00 on the log file, which doesn't show anything happening.

Thanks! I'm thankful that the video feed never cut out, and that wedding audiences are very forgiving! haha

 

[rockbottom]

Use OBS 64-bit....

14:14:54.110: Physical Memory: 15789MB Total, 10274MB Free (NOTE: 32bit programs cannot use more than 3gb)

14:14:54.501: OBS 26.1.1 (32-bit, windows)

 

[jon2043]

Use OBS 64-bit....

14:14:54.110: Physical Memory: 15789MB Total, 10274MB Free (NOTE: 32bit programs cannot use more than 3gb)

14:14:54.501: OBS 26.1.1 (32-bit, windows)

Yeah, that's an entirely different issue in itself. I can't use the 64bit version for some reason. Last year around August, it just stopped working. I can open the program, but I can't get any feed other than a black screen. I have spent hours trying to fix it. I've unistalled OBS countless times, I even did a fresh install of Windows and it didn't fix it. I've tried to keep my drivers up to date as well and it to this day, it still won't work. The 32bit version is the only thing that works for me.

 

[jaturner1163]

I have the same problem.... streamed a Maundy Thursday service at church - video started fine - audio came in 39 seconds into the service - setting the entire service out-of-synch. Recording from OBS shows exactly the same thing. Week before, service was fine - until about 7 minutes into it. Then, audio cut out for 5 seconds, then came back - right where it left off. The rest of the service was out-of-synch. Been streaming for about 3 months, now. Have seen this problem, each week, except for 2. OBS monitor shows no problems, throughout the service. Pretty frustrating.... I'm using ATEM Mini switcher, OBS 26.1.1 (64 bit, Windows 10)

 

[jon2043]

I'm glad I'm not the only one then. Unfortunately, the exact same thing happened this morning while streaming my church's Easter service.

I'll post the logs and an example of what happened. I did a completely clean install of Windows 10 since the problem first occurred. If you watch the video, ignor the weird sounding audio at the end. When the audio first cut off, my first thought was that the mic died, so I instictively turned on another mic in the house so that the livestream watchers could at least hear something. When the audio came back in though, I instantly knew what had happened though and turned the house mic back off.

Audio Problem:

Microsoft OneDrive

1drv.ms

I'm starting to wonder if it is actually a problem with the ATEM Mini and the USB Webcam feature.