I have a slide with audio that should begin playing when the timeline on the slide begins. When I preview the slide, it works as it should. When I publish the course, the audio is delayed by 10-15 seconds. I tried creating a new slide, duplicating the original one, re-recording the audio. Same issue. It works in preview mode, but not publish mode. The course has been uploaded to our LMS and the delayed audio issue still exists. Help! Please.

I have the same problem. The audio on the first slide is delayed, throwing off my synchronized bullet points. When I preview the slide, it works as it should. When I publish the course, the audio is delayed by 10-15 seconds. It is also happening on other slides. I have these slides auto-advancing and sometimes the slide advances before the audio finishes. I know if I change the slides to manually advancing, the issue is not noticeable, but my customer does want that. I searched through the forum and found many discussions (on this topic) that are very old. This was the most recent one I could find. I did not see a comment where Articulate acknowledged the issue and stated a plan to fix not did I see a suitable fix for it. BTW, I have the newest version of Storyline 360.

I've experienced this issue just as Brandan describes it, using up to date SL360 in more than one course. This happens to courses published in Review and also to our LMS. It happens in Chrome and in Edge. It is inconsistent for me and for other users - sometimes a slide is delayed, and sometimes that same slide is not. Some delayed audio starts without a trigger, some delayed audio starts with a trigger. Some slides auto-advance and others do not. We've experienced the issue with imported audio, audio recorded within SL360, audio generated within SL360 using text-to-speech. The best way to describe it is similar to the buffering you might experience in a video, except that the only delay is the audio. The visual (animation, screen recording, etc.) moves on the timeline as expected.

Hello. We experienced it intermittently in Review 360. I just reviewed the courses Debbie and I had this issue with, both designed the same way - one played the audio and the other did not play the audio. For the course that did not play the audio, when I navigated back it played. This is how I remember the issue presenting in Review 360, very inconsistently.

We are also experiencing this issue. As a workaround, we've found that if we delete and re-import the audio, it fixes it for that slide.

Same issue here! Only on my intro slide though. It works in preview, but delayed in Scorm Cloud and in our LMS. I have tried deleting and re-entering audio, creating a trigger to start audio when timeline begins, exporting the text to speech and uploading it as an audio file, putting in a slide prior that auto advances to give it a moment. Nothing works.

Audio Delay When Published But Not When Previewed

37 Replies

RobL01
Community Member
10 days ago
I suppose in typical Articulate fashion there is still no resolution to this after 2 years. Just send in your project, we'll take a look, and you'll never see anymore about it? Excuse my frustration, but this problem has been a thorn in me for much longer than 2 years. It's frustrating to precisely synchronize visual and audio elements only to see them play unsynchronized. It reflects badly on the developer, making them look careless and sloppy. It's worst when playing from Articulate 360, but seems to also happen when playing from a local drive, though not as pronounced. The only thing that helps is to let course play for several seconds, and then scrub the play head back to the beginning to start again. But asking the viewer to do that is unreasonable. Seems like adding an adjustable buffering function might be worth trying.
- StevenBenassi
  Staff
  6 days ago
  Hi RobL01!
  
  I'm sorry for the ongoing frustration you've experienced regarding the playback of your Storyline course!
  
  Syncing audio and visual elements is a crucial part of building a course, and I completely understand how difficult it is when the playback doesn't match what you see while editing. Especially when you've invested time and effort to get everything perfectly aligned. We never want you to feel like your issues are going unnoticed, and I'm sorry if that has been your experience in the past. When behavior is intermittent or environment-specific, it can take longer to identify the root cause.
  
  The playback desynchronization you’re seeing is not the intended behavior of Storyline. The fact that the audio and animation sync improve only after buffering or after manually scrubbing back, suggests that the issue may be related to how the browser or device handles media loading in your specific project. When publishing from Storyline, have you already tried setting the video quality to Adaptive? This setting can be found under Publish Properties > Quality.
  
  This option can help improve video quality during playback and reduce buffering for learners.
  
  I'd also like to connect you with our support engineers so they can investigate further and guide you toward a clear path forward. I've opened a support case on your behalf and sent you an e-mail with an upload link you can use to share your .story file privately with our team.
  
  We can continue the troubleshooting through your case!

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Audio Delay When Published But Not When Previewed

37 Replies

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