SL 360: Video adio sync problem with seekbar

The problem can also be made "visible" by activating the video control below the video. If I then jump back on the seekbar, the video jumps to the right place (e.g. sec. 03), but it takes 1-2 seconds until the video runs.  The audio track is already running however. Thus the delay becomes even "visible".

Edit Nr. 2:

It seems that with Google Chrome I don't any sync issues only with Firefoxe (71.0 (32-Bit)). Maybe that helps.

Hi Stefan!

Thank you for sharing your troubleshooting steps! It's always helpful to see what has already been checked off!

Are you seeing the audio sync error during Preview or just in the browsers? 

Have you tried using the trigger, Pause Timeline and Resume Timeline? This would be my first suggestion if this error is happening in Preview.

Would you mind sharing the file with us? You can do so by using the "add attachment" button in this discussion. Or you can share the file privately with our Support Engineers by using this link.

See the appendix for a sample video and sample file showing the problem. This time without audio.

I do not use triggers (Pause Timeline and Resume Timeline).

I see the sync error mainly in the browser and also in various LMS systems.

Especially I have difficulties when several videos are shown in one screen. Sometimes the videos don't start at all, but simply stop in the still image. Without a recognizable reason why.

In general my impression is that Storyline has big problems to handle imported videos correctly if the Seekbar is used at the same time. Therefore the questions again:

• What is the best way to start the videos? Automatic? by trigger when the video timeline starts? By trigger, when the timepoint is reached at which the video starts on the timeline?
• What properties do the imported videos need to have in order for Storyline to work well with them?

I think in the case you describe it is best to put the audio in the videos

Unfortunately, this can't be the solution.

1) The video-audio lync problem is not the only problem, as can be seen in the video above.

2) When I add audio to the videos, the volume of these videos is different from the volume of the audio clips  (this is a further storyline bug).  Therefore, audio and videos must be separated.

On publish if you chose to normalise the audio it should be the same level. Both the audio and the vu=ideo will progressively download there will be slight delays, if I had audio that has to be closely synced with the video I would add into the video

Yes, I know this option but it doesn't help. The volume is still diferent when I use this option as I have tried it several times in the past.

Sorry Stefan looks like I have nothing that can help you.

Thanks for your help anyway. It's a bit frustrating as I've been struggling with this issue for several months now and no solution is in sight.

Dear Articulate team,

I haven't heard from you in this matter. Could you help me?

Many thanks!

Hi Stefan,

It looks like my colleague, Shiela, replied to you last week with a request for some files. I encourage you to keep at it with her, as that will be the best way for us to troubleshoot and offer some help!

Hi Ren,

thank you for your reply. Unfortunately the message from Shiela deals with another problem. However, this problem here has not yet been further discussed. I have already deposited corresponding storyline files in this topic (9 days ago!).

Hi Stefan,

Apologies for the mixup! I've opened a case on your behalf with the Support Team to provide you with some tailored support in troubleshooting these files. Also, I've shared the information you provided, so no need to share files again!

Be on the lookout for a response soon!