Audio not working for HTML5 output in Chrome using Storyline 360

Hi there, 

I don't have Storyline 360, I'm using Storyline 2 and as of two days ago, this is the exact same thing happening to me when I publish. The story I successfully published before this started happening, has the issue when I try and publish it now as a test. It has been fixing itself randomly on some slides and not on others. I've tried re-installing SL2, importing into a new story, importing new audio, testing working slide audio on non-working slide audio and no success. 

I just wanted to add to here as it doesn't seem specific to just convert from SL3 to SL360. I've submitted a ticket, waiting for a response.

Thanks! 

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UPDATE: 

Thought I would share my progress here just in case it helps someone else. I found what the problem was and managed to fix for all slides except for one that works locally but uploaded to my server, doesn't work. For me, the problem was stock videos beginning at the very start of the timeline. I shifted them to start .05s in and that let the separate audio layer play fine. I also noticed it was throwing a console error: 

Uncaught (in promise) DOMException: The play() request was interrupted by a call to pause().

This disappeared after I done the above. I'd be curious to hear if anyone has fixed it and how. This has taken me over 2 days of wasted time trying to figure out what was going on. Hopefully, my solution may help someone else. 

Thanks!

Hi Hannah,

Thanks so much for submitting your file to our team, and I see that you've been working with my colleague Victor. I'm really sorry you spent so much time troubleshooting this issue! Happy to hear you finally got it sorted out.

If you have any more questions, don't hesitate to reach out here or to Victor in your case. 

Thanks Hannah. I am also using Windows through Parallels on my Mac. It started with one project for me too, and now it's affecting several. It seems to be random.

Articulate, I'm wondering if this is a pattern. If this issue is being reported by all Mac/Parallels users.

And in case you suggest it, yes, I work locally and followed all the steps in the recommendations if you are using a Mac :)

I heard back from Victor at support with the following (summarized) response: 

I'm done reviewing your project and we were able to replicate the issue. This error happens when there are multiple media files (audio and video) on the same slide. Especially if the video file is muted (Slide 1.1). I've reported is a possible software bug.

From here, I’ll meet with my team to take a closer look so we can determine next steps. Sometimes my team catches errors in my logic and we don’t have a bug after all. Of course, if that’s the case, I’ll let you know!

Depending on priority and risk, some bugs can be fixed quickly, while others take longer to resolve. I’ll let you know as soon as we have an update on this issue. Thanks so much again for letting us know about this, and I’m sorry if it’s slowing you down.

Meanwhile, I'm currently implementing possible workarounds to your project to alleviate this behavior. I'll be sending your the updated project file shortly.

********** UPDATE *********

Support has given me a partial solution by putting the audio on a separate layer and using a trigger to show the audio layer when the timeline starts. However, when I pause, the audio still plays so I'm seeing if there is a way it can sync pause with the base layer.

I posted updates on the following thread regarding SL2 too as someone was having the same issue here: https://community.articulate.com/discussions/articulate-storyline/audio-not-playing-on-some-sl2-slides?page=2#reply-491653 I don't want to clog up repeating my fix/workaround but I figure it may help people on both threads. 

************* FURTHER UPDATE AND FIXED!!! *****************

Whilst I was waiting for Victor to get back to me on the above pausing the separate layer. I decided to work from his advice on my existing problem story:

This error happens when there are multiple media files (audio and video) on the same slide. Especially if the video file is muted (Slide 1.1)

I removed the audio from my stock video outside of SL2—I used VLC (https://www.guidingtech.com/52911/mute-audio-use-vlc-youtube-video/)—then re-imported that video in and hid the old problem video—with the sound muted—still kept the workaround of starting the video ~0.75s in. It works perfectly locally and uploaded to my server! Such a relief!!!!

I hope this can help other people!

Thanks for pointing me to this thread, Hannah!

I'm having the same problem with the project previewing fine locally, but when I put it on our web server or SCORM cloud, the audio doesn't play on the first slide. 

I thought it was an issue with slides that had video, as the first few courses this happened on started with videos that had separate audio tracks. However, my most recent course that I'm experiencing the audio issue with, the first slide has only a couple static elements. This is the one that I tested your fix of pushing the audio back to 0.75s, and that fixed it. I've yet to try it on the courses where I have videos on the first slide.

Again, this was not an issue that was occurring before I made the mid December update. And these aren't all brand new courses - some are courses that worked fine when published before that update, and now are having audio issues... so it's a mystery.

And in case you and Megan were wondering if this was a Parallels/Mac issue, I'm running 360 in Windows 10 on a PC.

Thanks for the info Hannah. I've been able to get some of the workarounds to work (triggering audio to .25 seconds) but this is not a sustainable fix. I'm hoping Articulate can figure out what the issues are and release a fix.

Hello Hannah, Megan, and Danielle :)

Thanks for reaching out and working directly with our support team. It looks like you are all experiencing a slightly different issue that our team is looking into.

Again, I appreciate you continuing to work with our team directly.

Following this thread since a client of ours just noticed this same issue. Published from SL360, launching html5 output from LMS, audio does not play as soon as a slide begins, as it should. You have to go to another slide and come back for audio to play correctly. OR, replay slide.

Hi Laurie,

Sorry that you've had a client run into this as well. Does this mean you are unable to replicate?

We are still testing and investigating, so if you have a .story file we can take a look at, that would certainly be helpful. 

Hi Leslie,

Support already has one of my files where the audio stopped working, but it seems like I'm getting more and more every day. Would you like some of those?